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        <title>NotionNext BLOG</title>
        <link>https://bensonchen.com.cn/</link>
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            <title><![CDATA[20230811夜游苏堤有感]]></title>
            <link>https://bensonchen.com.cn/article/e789fbe4-1796-4233-9c13-8871bd25d711</link>
            <guid>https://bensonchen.com.cn/article/e789fbe4-1796-4233-9c13-8871bd25d711</guid>
            <pubDate>Sat, 12 Aug 2023 00:00:00 GMT</pubDate>
            <content:encoded><![CDATA[<div id="container" class="mx-auto undefined"><main class="notion light-mode notion-page notion-block-e789fbe4179642339c138871bd25d711"><div class="notion-viewport"></div><div class="notion-collection-page-properties"></div><div class="notion-row notion-block-666e431fe35646aa8365d356ab2f827d"><div class="notion-column notion-block-c6acad98de7a4e8284101c7cf013bcec" style="width:calc((100% - (2 * min(32px, 4vw))) * 0.33333333333333337)"><div class="notion-blank notion-block-561f60bec4de46fcbdd5f11a02f3198b"> </div></div><div class="notion-spacer"></div><div class="notion-column notion-block-1ebb14ca3a764b35b034c9715da7ddc8" style="width:calc((100% - (2 * min(32px, 4vw))) * 0.33333333333333337)"><h2 class="notion-h notion-h1 notion-block-2711168560ec4397ada8bc9206d68db6" data-id="2711168560ec4397ada8bc9206d68db6"><span><div id="2711168560ec4397ada8bc9206d68db6" class="notion-header-anchor"></div><a class="notion-hash-link" href="#2711168560ec4397ada8bc9206d68db6" title="夜游苏堤有感"><svg viewBox="0 0 16 16" width="16" height="16"><path fill-rule="evenodd" d="M7.775 3.275a.75.75 0 001.06 1.06l1.25-1.25a2 2 0 112.83 2.83l-2.5 2.5a2 2 0 01-2.83 0 .75.75 0 00-1.06 1.06 3.5 3.5 0 004.95 0l2.5-2.5a3.5 3.5 0 00-4.95-4.95l-1.25 1.25zm-4.69 9.64a2 2 0 010-2.83l2.5-2.5a2 2 0 012.83 0 .75.75 0 001.06-1.06 3.5 3.5 0 00-4.95 0l-2.5 2.5a3.5 3.5 0 004.95 4.95l1.25-1.25a.75.75 0 00-1.06-1.06l-1.25 1.25a2 2 0 01-2.83 0z"></path></svg></a><span class="notion-h-title">夜游苏堤有感</span></span></h2></div><div class="notion-spacer"></div><div class="notion-column notion-block-66d0db4b23784b9fa6b41433718cbedf" style="width:calc((100% - (2 * min(32px, 4vw))) * 0.3333333333333333)"><div class="notion-blank notion-block-f47b34f9909545c99a0f639ba622c22c"> </div></div><div class="notion-spacer"></div></div><div class="notion-text notion-block-732cf1295e5945cbb1bfcdbc8333b0ec">    </div><div class="notion-text notion-block-b391014ee0b541b495bfb4eb65a03b3a">    今天是在西湖大学做暑研的最后一天，在这一段时间的工作之后，雨泽提议一起出去吃顿好的。享受了一顿精致美味的新式杭州菜之后，我们三人一时兴起决定去西湖边上走走。雨泽、旭杰和我三人同行，子宸因为晚上高铁未能同去，甚是遗憾。</div><div class="notion-blank notion-block-c6365e0333274bf48896f123592e3ea3"> </div><div class="notion-text notion-block-90ee2cbdf90046b0a9f6ec3a93e9dbae">    在经历多站的地铁以及一段车程之后，一行人来到岳王庙附近，晚上的西湖旅程也就此开始。晚上的西湖边，车辆仍然很多，游人也络绎不绝。与前两次来西湖的经历相比，夜晚的西湖让我更加喜爱，马路边不时地经过几支骑行的队伍，游人大多也是杭州本地人，没有了外地游客游玩景点的那种目的性，便悠闲惬意了不少。</div><div class="notion-blank notion-block-592e9bf6aa814cc8a968624219975577"> </div><div class="notion-text notion-block-65a16c83c9ac4e6ebcd6a1f1d321d486">    岳王庙往前便步入苏堤，前两次来杭州虽然也走过苏堤，但给我印象极差，大抵是因为都是刚玩过雷峰塔景区，且在夏季白天从南端向北走的缘故，所以苏堤在我印象中是漫长且炎热的。然而今夜却截然不同，刚上苏堤走上一段小桥，周围还有些喧闹，周围游人的说笑、路上的车声、岸边一处演出的声音混杂在一起，颇有些市井风味。但继续向前走，又过一桥，周围便安静下来，仿佛整个城市扭小了音量。身边也只剩下路人的说笑声，能够清楚地听到岸边湖水拍击岩石的声音。雨泽和旭杰在开心地谈论大学生活的种种乐事，我听着，偶尔插几句嘴，想象着未来几年的生活。</div><div class="notion-blank notion-block-a77bd04b683044d08cdfd999679fd44c"> </div><div class="notion-row notion-block-86f919beebdd48728b9c8d213525866d"><div class="notion-column notion-block-aefcd6db0f1d435690cff5e5a1eb9350" style="width:calc((100% - (1 * min(32px, 4vw))) * 0.5)"><figure class="notion-asset-wrapper notion-asset-wrapper-image notion-block-b11488c20d71476c80930454b05ec6d1"><div style="position:relative;display:flex;justify-content:center;align-self:center;width:100%;max-width:100%;flex-direction:column;height:100%"><img style="object-fit:cover" src="https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2Fae5808bd-d6c5-4597-b09e-128217d3bea4%2FIMG_8257.heic?table=block&amp;id=b11488c2-0d71-476c-8093-0454b05ec6d1" alt="notion image" loading="lazy" decoding="async"/></div></figure></div><div class="notion-spacer"></div><div class="notion-column notion-block-b6d87c4f1eb34f39927ad1291147b948" style="width:calc((100% - (1 * min(32px, 4vw))) * 0.49999999999999994)"><figure class="notion-asset-wrapper notion-asset-wrapper-image notion-block-da894f4459a44c57a7c781193ffee465"><div style="position:relative;display:flex;justify-content:center;align-self:center;width:100%;max-width:100%;flex-direction:column"><img style="object-fit:cover" src="https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2F6a13a9d6-de30-47a1-9ec9-302c033ce1fc%2FIMG_8259.heic?table=block&amp;id=da894f44-59a4-4c57-a7c7-81193ffee465" alt="notion image" loading="lazy" decoding="async"/></div></figure><div class="notion-blank notion-block-0a4b62116e05462daf4fff930508349d"> </div></div><div class="notion-spacer"></div></div><div class="notion-text notion-block-453ecf760d1f453c9c0777cf9375b7cc">    我们从大路上穿过草地，挨着湖水走，路边的柳树树梢末端舔着湖水，湖水中央不时传来鱼儿跃起又落入水中的声音，一切都与我上次来西湖时无异，一草一木都是我记忆中的西湖的样子。抬头见，忽然看到对岸的灯火，长长的，像绳子一般遥遥地躺在西湖的东岸。站上湖边的一块岩石，脚下是拍击着岩石的湖水，周围的苏堤隐去了，西湖东岸的商业圈是那么明亮，隔着湖水又显得那么遥远。忽然觉得世界离我那么遥远，一刹那，我仿佛从我的生活中抽离出去，从世界中抽离出去，以一个旁观者的视角来看这个世界。耳边的水浪声显得那么有节奏，深沉而充满力量，那是这个城市的呼吸声，在这一刻也成为我的呼吸声。</div><div class="notion-blank notion-block-f800e4afceb3431880697d6718e103b4"> </div><div class="notion-text notion-block-095b86e59ec54c09b1e274353281fc94">    雨泽和旭杰在说些成绩、游戏之类的话题，我走在后面，只在提到我时敷衍两句，突然觉得这些日常的东西都失去了吸引力。想到第一次来杭州是和母亲、外公外婆以及大姨一家，那时候还很小，只能记得一些片段。第二次来杭州西湖是在高考完的那个暑假，与两位要好的朋友同来，那时候的我是开心而纯粹的，充满了对大学的向往，杭州几天游玩的时光给我留下了不少欢乐的记忆。回看这几次经历，从最开始是和家人一起，到逐渐成长和初高中的朋友一起，再到现在新结识的来自全世界的朋友一起，一方面我在逐渐成长，逐渐往前走，获得更多。但在得到的同时也在不断地失去，到异地求学，选择尝试科研，在一门心思向前走的同时，不经意转头间，会发现与生命中的那些人走上了不同的路，或是在同一条路上渐渐远离。</div><div class="notion-blank notion-block-3986da2c34df4b60a88e9924f4a61583"> </div><div class="notion-text notion-block-074810e13cd04b8a90b132deff96ded0">    想到这里，突然意识到，今天难道不正是最后一天吗？与新结识的、有着相同梦想、来自世界各个地方的朋友要各奔东西了，才交的朋友转眼之间便又要分离，踏上属于各自的旅程。子宸走的时候还不觉得什么，仿佛他就像平常一样只是要去趟实验室，没法和大家一起吃饭，但现在才突然发现，一别很可能就是几年，甚而更久。想到这里，便高兴不起来了，低着头，默默地走。雨泽和旭杰还谈得兴起，我向来热衷于和同学谈理想、谈未来、谈研究方向、谈学校…但今天却实在没有兴趣，也不想说，大概是突然意识到曾经以为随意且平常的东西是那么宝贵，也那么容易失去，并且一旦失去很有可能便不再拥有了。</div><div class="notion-blank notion-block-47ab137f14c541fab713e9978e2961b9"> </div><div class="notion-text notion-block-01933f37e8de49078e74750cb762a313">    夜晚是短暂的，人生是漫长的，一时的失落是短暂的，前方的道路是漫长的。能做的唯有把握当下。</div><div class="notion-text notion-block-1c63d99ed5ee4e4284da0074a24676fe">    回到宿舍，无意间刷到一个视频，在此附上。</div><div class="notion-blank notion-block-f8950d2afa6b4b2f8379b9c6a9f32fe0"> </div><div class="notion-blank notion-block-0c1c90113ef4432aa57fc82416c4ea74"> </div><figure class="notion-asset-wrapper notion-asset-wrapper-embed notion-block-87fb7e019dfa46f4989f61268e6bce14"><div style="position:relative;display:flex;justify-content:center;align-self:center;width:432px;max-width:100%;flex-direction:column;height:209px"><iframe class="notion-asset-object-fit" src="https://player.bilibili.com/player.html?aid=637429689&amp;bvid=BV1qb4y1p7T1&amp;cid=552857947&amp;page=1" title="iframe embed" frameBorder="0" allowfullscreen="" loading="lazy" scrolling="auto"></iframe></div></figure></main></div>]]></content:encoded>
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            <title><![CDATA[20230628关于超表面消色差偏折器的学习简述]]></title>
            <link>https://bensonchen.com.cn/article/c719a7c7-6dbf-46f0-87af-80a9f025690d</link>
            <guid>https://bensonchen.com.cn/article/c719a7c7-6dbf-46f0-87af-80a9f025690d</guid>
            <pubDate>Fri, 02 Jul 2021 00:00:00 GMT</pubDate>
            <description><![CDATA[近一个月学习超表面消色差的体会和思考]]></description>
            <content:encoded><![CDATA[<div id="container" class="mx-auto undefined"><main class="notion light-mode notion-page notion-block-c719a7c76dbf46f087af80a9f025690d"><div class="notion-viewport"></div><div class="notion-collection-page-properties"></div><h2 class="notion-h notion-h1 notion-h-indent-0 notion-block-8d9d6bb3a8d34a50b5c209bbde7f3051" data-id="8d9d6bb3a8d34a50b5c209bbde7f3051"><span><div id="8d9d6bb3a8d34a50b5c209bbde7f3051" class="notion-header-anchor"></div><a class="notion-hash-link" href="#8d9d6bb3a8d34a50b5c209bbde7f3051" title="色差"><svg viewBox="0 0 16 16" width="16" height="16"><path fill-rule="evenodd" d="M7.775 3.275a.75.75 0 001.06 1.06l1.25-1.25a2 2 0 112.83 2.83l-2.5 2.5a2 2 0 01-2.83 0 .75.75 0 00-1.06 1.06 3.5 3.5 0 004.95 0l2.5-2.5a3.5 3.5 0 00-4.95-4.95l-1.25 1.25zm-4.69 9.64a2 2 0 010-2.83l2.5-2.5a2 2 0 012.83 0 .75.75 0 001.06-1.06 3.5 3.5 0 00-4.95 0l-2.5 2.5a3.5 3.5 0 004.95 4.95l1.25-1.25a.75.75 0 00-1.06-1.06l-1.25 1.25a2 2 0 01-2.83 0z"></path></svg></a><span class="notion-h-title">色差</span></span></h2><div class="notion-text notion-block-5db5c862cbe9425bbadaf3faeb6dd331">当光线在不同的材料中传播时，由于不同波长的折射率并不相同，所以经过折射或者是一段距离的传播后必然会产生色差。在传统的光学系统中，通常采用正负透镜组合的方式来解决该问题，例如双胶合透镜。</div><div class="notion-blank notion-block-09a971ca5e544a29878f46adee522c90"> </div><h2 class="notion-h notion-h1 notion-h-indent-0 notion-block-c170bc1bd0c84dee860520166a6e9c35" data-id="c170bc1bd0c84dee860520166a6e9c35"><span><div id="c170bc1bd0c84dee860520166a6e9c35" class="notion-header-anchor"></div><a class="notion-hash-link" href="#c170bc1bd0c84dee860520166a6e9c35" title="超透镜宽带消色差简述"><svg viewBox="0 0 16 16" width="16" height="16"><path fill-rule="evenodd" d="M7.775 3.275a.75.75 0 001.06 1.06l1.25-1.25a2 2 0 112.83 2.83l-2.5 2.5a2 2 0 01-2.83 0 .75.75 0 00-1.06 1.06 3.5 3.5 0 004.95 0l2.5-2.5a3.5 3.5 0 00-4.95-4.95l-1.25 1.25zm-4.69 9.64a2 2 0 010-2.83l2.5-2.5a2 2 0 012.83 0 .75.75 0 001.06-1.06 3.5 3.5 0 00-4.95 0l-2.5 2.5a3.5 3.5 0 004.95 4.95l1.25-1.25a.75.75 0 00-1.06-1.06l-1.25 1.25a2 2 0 01-2.83 0z"></path></svg></a><span class="notion-h-title">超透镜宽带消色差简述</span></span></h2><div class="notion-row notion-block-3c08c1d3a21845308758e82eeafff728"><div class="notion-column notion-block-a2c3faa56fd34de5abffcc329ab28bcd" style="width:calc((100% - (1 * min(32px, 4vw))) * 0.25)"><div class="notion-text notion-block-8d6af80f7b834b6ca01e00c651e30188">超透镜上用来调控相位的结构尺寸在纳米尺度，并且由于其结构是平面的，所以可以利用其特殊的性质实现单透镜的消色差。</div><div class="notion-blank notion-block-73ae6b1bec7d45699ed9c5bed46022f1"> </div></div><div class="notion-spacer"></div><div class="notion-column notion-block-16a198767f5344d7a6b552ff0a9a1dfe" style="width:calc((100% - (1 * min(32px, 4vw))) * 0.75)"><figure class="notion-asset-wrapper notion-asset-wrapper-image notion-block-d73934629a004727be51ec451b449bca"><div style="position:relative;display:flex;justify-content:center;align-self:center;width:336px;max-width:100%;flex-direction:column"><img style="object-fit:cover" src="https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2Fcbdb91ae-32c3-445c-b2b8-6252a9ac8cc7%2FUntitled.png?table=block&amp;id=d7393462-9a00-4727-be51-ec451b449bca" alt="  图1  左侧为超透镜的色差现象，右侧为消色差超透镜" loading="lazy" decoding="async"/><figcaption class="notion-asset-caption">  图1  左侧为超透镜的色差现象，右侧为消色差超透镜</figcaption></div></figure></div><div class="notion-spacer"></div></div><div class="notion-blank notion-block-ee7b72ba67ef48d2b6d5dd1fd2f6a2d4"> </div><div class="notion-text notion-block-7cc2f134b9c54c7c8cae4209e65f0804">以透镜中心为圆心，透镜表面的相位符合：</div><div class="notion-text notion-block-0b707c880e14474c87e4560e50a5260a">可以看到，对于不同波长的光，如果要实现宽带的消色差，那么R相同时，对于不同波长的光有不同的相位要求。每个结构都具有自己的色散特性，为了达到上述公式的要求，我们需要在不同R处选择不同结构，来实现消色差。</div><div class="notion-text notion-block-ad14e587517a4abaabdbec5b8d669647">常见做法为，将相位分为两个部分：</div><div class="notion-text notion-block-1c77f7d9b66141b1b3953bca6182f049">(3)式中第一项为传播相位，只与R相关，波长可以为任意选定的一个波长，第二项为色散相位，用来补偿色散。在寻找结构的过程中，不同R处的结构需要的色散关系即单元结构表面相位与波长倒数的关系近似为正比，并且斜率需要等于特定数值。</div><div class="notion-blank notion-block-71db897bfa5849c385c80bba8f284c7c"> </div><h2 class="notion-h notion-h1 notion-h-indent-0 notion-block-fa932066009a4ee2a51e6053e6b624ad" data-id="fa932066009a4ee2a51e6053e6b624ad"><span><div id="fa932066009a4ee2a51e6053e6b624ad" class="notion-header-anchor"></div><a class="notion-hash-link" href="#fa932066009a4ee2a51e6053e6b624ad" title="超表面光束偏折器消色差"><svg viewBox="0 0 16 16" width="16" height="16"><path fill-rule="evenodd" d="M7.775 3.275a.75.75 0 001.06 1.06l1.25-1.25a2 2 0 112.83 2.83l-2.5 2.5a2 2 0 01-2.83 0 .75.75 0 00-1.06 1.06 3.5 3.5 0 004.95 0l2.5-2.5a3.5 3.5 0 00-4.95-4.95l-1.25 1.25zm-4.69 9.64a2 2 0 010-2.83l2.5-2.5a2 2 0 012.83 0 .75.75 0 001.06-1.06 3.5 3.5 0 00-4.95 0l-2.5 2.5a3.5 3.5 0 004.95 4.95l1.25-1.25a.75.75 0 00-1.06-1.06l-1.25 1.25a2 2 0 01-2.83 0z"></path></svg></a><span class="notion-h-title">超表面光束偏折器消色差</span></span></h2><div class="notion-text notion-block-ae62038300b54306944a113b7c555bc0">光束偏折器的基本原理（将相位分成传播相位和色散相位）与超透镜消色差完全一致，两者不同之处共有两点。第一点，超透镜不同半径处采用的结构是一致的，而偏折器与法面垂直的方向的每一列结构是一致的，这一点差别并不大，可以使用超表面的同样的结构来设计偏折器。</div><div class="notion-row notion-block-8a9660e048ee4976aede17dd95d0a586"><div class="notion-column notion-block-8dfba2ca386d42378beaa54c1a79cef2" style="width:calc((100% - (1 * min(32px, 4vw))) * 0.375)"><figure class="notion-asset-wrapper notion-asset-wrapper-image notion-block-eb0d6e3be3734944b82adf8a8f909f40"><div style="position:relative;display:flex;justify-content:center;align-self:center;width:240px;max-width:100%;flex-direction:column"><img style="object-fit:cover" src="https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2F07076faa-3945-4427-86fb-30a930be6448%2FUntitled.png?table=block&amp;id=eb0d6e3b-e373-4944-b82a-df8a8f909f40" alt="notion image" loading="lazy" decoding="async"/></div></figure></div><div class="notion-spacer"></div><div class="notion-column notion-block-befe8f2aab4b4f84bd37c17a7ebc482a" style="width:calc((100% - (1 * min(32px, 4vw))) * 0.625)"><figure class="notion-asset-wrapper notion-asset-wrapper-image notion-block-8164a93ab81e49b7af35a9bd42484546"><div style="position:relative;display:flex;justify-content:center;align-self:center;width:240px;max-width:100%;flex-direction:column"><img style="object-fit:cover" src="https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2F9cbe98b4-238a-449e-b340-823e5e83d7eb%2FUntitled.png?table=block&amp;id=8164a93a-b81e-49b7-af35-a9bd42484546" alt="图2  左侧为消色差超表面，右侧为垂直法面的侧视图" loading="lazy" decoding="async"/><figcaption class="notion-asset-caption">图2  左侧为消色差超表面，右侧为垂直法面的侧视图</figcaption></div></figure></div><div class="notion-spacer"></div></div><div class="notion-text notion-block-5f765e60bca54a988149eb28b6a25c2f">第二点，如果想要在此基础上进行一些设计，例如左旋光进入往左偏，右旋光进入往右侧偏折，如果利用大多数论文上出现的公式，会发现色散关系完全发生了颠倒，这是之前不曾讨论过的情况。我也在学习的时候产生了一些理解上的问题，接下来说一些我的理解。</div><div class="notion-text notion-block-7c2a7f508bb940a997d5dd68cf70e724">第一点的情况易于理解，无需说明。在此说明第二点中可能引起疑惑的地方。首先，与超透镜公式不同，偏折器公式为：</div><div class="notion-text notion-block-1cadad09d3944b67be96942a67271d01">同样，分为传播相位和色散相位：</div><div class="notion-text notion-block-824feaae0b3c457bb276ece5850c5412">下图为（1）式  相位-x  图：</div><div class="notion-row notion-block-6a783171ae1d46799c6e0bc62efa54a3"><div class="notion-column notion-block-e9c3af8ab5314be0b458018c856cab37" style="width:calc((100% - (2 * min(32px, 4vw))) * 0.3333333333333333)"><figure class="notion-asset-wrapper notion-asset-wrapper-image notion-block-97d152f2278c449891653a241e916377"><div style="position:relative;display:flex;justify-content:center;align-self:center;width:100%;max-width:100%;flex-direction:column;height:100%"><img style="object-fit:cover" src="https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2F32d85ce6-5d3b-48b8-9ce4-8ae7c6087925%2FUntitled.png?table=block&amp;id=97d152f2-278c-4498-9165-3a241e916377" alt="                       图3" loading="lazy" decoding="async"/><figcaption class="notion-asset-caption">                       图3</figcaption></div></figure><div class="notion-blank notion-block-c88e18fbcb804e708fd197aea0e93de7"> </div></div><div class="notion-spacer"></div><div class="notion-column notion-block-c61da9a862f141bca47bf6c120195987" style="width:calc((100% - (2 * min(32px, 4vw))) * 0.3333333333333333)"><div class="notion-text notion-block-51c6441deefb411cba5e1427fbacaf6e">图片含义为不同的位置x时，对于不同的波长，应当满足的关系。x，lamda为变量，波长在最小、最大波长之间的光的phi-x斜率也应当在最小、最大波长光之间。</div><div class="notion-blank notion-block-d28e51492cfd48dd8701ccc182906dc9"> </div></div><div class="notion-spacer"></div><div class="notion-column notion-block-85cadb1864904ff283a93ee370068f29" style="width:calc((100% - (2 * min(32px, 4vw))) * 0.33333333333333337)"><div class="notion-blank notion-block-252342220a154672a93f891e88434eeb"> </div></div><div class="notion-spacer"></div></div><div class="notion-text notion-block-4fa42becdd44443db7a1bafa8f75f73e">这是一篇论文中的图像，那么这张图是如何画出来的呢？</div><div class="notion-text notion-block-04d275b867f241b4bf3df2a82eb78104">回到偏折器的原理:</div><figure class="notion-asset-wrapper notion-asset-wrapper-image notion-block-4d246cb5ecd44822beaa19bc581a417e"><div style="position:relative;display:flex;justify-content:center;align-self:center;width:336px;max-width:100%;flex-direction:column"><img style="object-fit:cover" src="https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2F27f89920-c05e-4515-acd7-05ab519f715e%2FUntitled.png?table=block&amp;id=4d246cb5-ecd4-4822-beaa-19bc581a417e" alt="                                          图4" loading="lazy" decoding="async"/><figcaption class="notion-asset-caption">                                          图4</figcaption></div></figure><div class="notion-text notion-block-af2d5d01d03f4eacb96c98ccf82639e9">假设黑色虚线部分的相位为phi0，要实现一个角度的偏折，就要求：</div><div class="notion-text notion-block-926f4c943e42418eb7fedb7c129b7083">需要注意到，注意到这里的phi0虽然是常数，但是在波长不同时可以变化，也就是说图3中的直线实际上是可以在斜率不变的情况下任意进行平移的，也就是说并不一定要像图3中波长最小的相位要领先波长最长的相位，波长最小的相位同样可以领先于波长最长的相位。</div><div class="notion-blank notion-block-9b27857b21894e9ca1ed795f8a7efd92"> </div><div class="notion-blank notion-block-e1a1ff0e94f341df82796e77b8f9d7be"> </div></main></div>]]></content:encoded>
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            <title><![CDATA[20230614]]></title>
            <link>https://bensonchen.com.cn/article/fdf5340e-7f98-445f-b547-f568306c21e4</link>
            <guid>https://bensonchen.com.cn/article/fdf5340e-7f98-445f-b547-f568306c21e4</guid>
            <pubDate>Wed, 14 Jun 2023 00:00:00 GMT</pubDate>
            <content:encoded><![CDATA[<div id="container" class="mx-auto undefined"><main class="notion light-mode notion-page notion-block-fdf5340e7f98445fb547f568306c21e4"><div class="notion-viewport"></div><div class="notion-collection-page-properties"></div><div class="notion-text notion-block-5d0f58663e2a47b6af71a22378ca46c0">今天是期末考试前一天，明天考应用光学和统计物理。上大学以来第一次感觉到期末周的恐怖，可能是因为这学期课程难度大，加上两天考四门的魔鬼考法。在经历过几次破防后，现在勉强将第一天考的两门课复习好了，而量子力学和模拟电路还是一知半解的状态。</div><div class="notion-text notion-block-8c01176bc4b24893921dd874ceefc533">突然有一种想要呐喊的感觉，原来这就是大学生期末周的感觉。期末周不仅仅是对于课程掌握程度的测试，也是对于当代大学生抗压能力、身体素质以及自学能力和短期记忆力的综合测试 😩</div><div class="notion-text notion-block-b6f943d2b2634880889ba79cb81e671f">期末周的存在无可厚非，但连续两天，一天两门的考法实在让人难以认可。大多数人必定袖手旁观，并借此对当代大学生心理不堪一击的现象进行吐槽。为反驳这些人的话语，并说明这种考法对身心影响之大、影响范围之广，在此列出几点原因以供参考：</div><ol start="1" class="notion-list notion-list-numbered notion-block-8ebfb98bd02d4ceab4766745217809cb"><li>会疯。</li></ol><ol start="2" class="notion-list notion-list-numbered notion-block-bab21d9114b147d4bbdde2e8dc01005c"><li>能够让大多数平时生活中心理稳定的成年人出现一定程度上的心理波动。</li></ol><ol start="3" class="notion-list notion-list-numbered notion-block-04e98fe362224b78a768409d136d2ea9"><li>将一周之内的平均睡眠时间降低至成年人类最低睡眠时间之下两个小时。</li></ol><ol start="4" class="notion-list notion-list-numbered notion-block-8800087f33684eb6827ba7af0aea1df8"><li>激化矛盾，不利于建立文明和谐的校园环境。</li></ol><ol start="5" class="notion-list notion-list-numbered notion-block-9d248b116b51460991d705d8635e96e5"><li>保安师傅从图书馆教室赶人的难度增大。</li></ol><ol start="6" class="notion-list notion-list-numbered notion-block-e0d8864d3419459da447d7266205966c"><li>增大电能消耗，不利于环境。</li></ol><ol start="7" class="notion-list notion-list-numbered notion-block-340b76eab12c417fb2c98a5176349623"><li>人是血肉之躯，不是压力容器，并且加高压亦不会出现超导现象。</li></ol><div class="notion-blank notion-block-92111c8130654996b5dda05292bef504"> </div><div class="notion-blank notion-block-ba18c861b1934aec83441f408c0ccd66"> </div><div class="notion-blank notion-block-acd3aec5652e4091ba96fe8f56c5710a"> </div><div class="notion-blank notion-block-15dc86f66f344041bbfdf5a03bb6ab70"> </div><div class="notion-blank notion-block-873028549ecb4d66ac41ac82eab23bde"> </div></main></div>]]></content:encoded>
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            <title><![CDATA[期末考试时间及复习安排]]></title>
            <link>https://bensonchen.com.cn/article/13a7b8cb-c405-443e-b690-a2d5af61430c</link>
            <guid>https://bensonchen.com.cn/article/13a7b8cb-c405-443e-b690-a2d5af61430c</guid>
            <pubDate>Tue, 06 Jun 2023 00:00:00 GMT</pubDate>
            <content:encoded><![CDATA[<div id="container" class="mx-auto undefined"><main class="notion light-mode notion-page notion-block-13a7b8cbc405443eb690a2d5af61430c"><div class="notion-viewport"></div><div class="notion-collection-page-properties"></div><h2 class="notion-h notion-h1 notion-h-indent-0 notion-block-f1a54f94ad164f0c8d725a479c813fec" data-id="f1a54f94ad164f0c8d725a479c813fec"><span><div id="f1a54f94ad164f0c8d725a479c813fec" class="notion-header-anchor"></div><a class="notion-hash-link" href="#f1a54f94ad164f0c8d725a479c813fec" title="考试时间"><svg viewBox="0 0 16 16" width="16" height="16"><path fill-rule="evenodd" d="M7.775 3.275a.75.75 0 001.06 1.06l1.25-1.25a2 2 0 112.83 2.83l-2.5 2.5a2 2 0 01-2.83 0 .75.75 0 00-1.06 1.06 3.5 3.5 0 004.95 0l2.5-2.5a3.5 3.5 0 00-4.95-4.95l-1.25 1.25zm-4.69 9.64a2 2 0 010-2.83l2.5-2.5a2 2 0 012.83 0 .75.75 0 001.06-1.06 3.5 3.5 0 00-4.95 0l-2.5 2.5a3.5 3.5 0 004.95 4.95l1.25-1.25a.75.75 0 00-1.06-1.06l-1.25 1.25a2 2 0 01-2.83 0z"></path></svg></a><span class="notion-h-title">考试时间</span></span></h2><table class="notion-simple-table notion-block-c5e7b4b117fe4695a5be4008d1d02b06"><tbody><tr class="notion-simple-table-row notion-block-2896eb29e2ce4b589316e4c67f3da846"><td class="" style="width:132.66666666666666px"><div class="notion-simple-table-cell">ㅤ</div></td><td class="" style="width:233.65625px"><div class="notion-simple-table-cell">          时间</div></td><td class="" style="width:100.65625px"><div class="notion-simple-table-cell">   地点</div></td></tr><tr class="notion-simple-table-row notion-block-8835d05944ce4cc1b24a3853a17aeed0"><td class="" style="width:132.66666666666666px"><div class="notion-simple-table-cell">   应用光学</div></td><td class="" style="width:233.65625px"><div class="notion-simple-table-cell">2023-6-15 8:00-10:00</div></td><td class="" style="width:100.65625px"><div class="notion-simple-table-cell">仙1-102</div></td></tr><tr class="notion-simple-table-row notion-block-e3aed43f43824fceadbf3904efee7726"><td class="" style="width:132.66666666666666px"><div class="notion-simple-table-cell">   统计物理</div></td><td class="" style="width:233.65625px"><div class="notion-simple-table-cell">2023-6-15 14:00-16:00</div></td><td class="" style="width:100.65625px"><div class="notion-simple-table-cell">仙1-109</div></td></tr><tr class="notion-simple-table-row notion-block-69efe4cef2c146118eb3a024dc68c3d4"><td class="" style="width:132.66666666666666px"><div class="notion-simple-table-cell">   模拟电路</div></td><td class="" style="width:233.65625px"><div class="notion-simple-table-cell">2023-6-16 8:00-10:00</div></td><td class="" style="width:100.65625px"><div class="notion-simple-table-cell">仙1-103</div></td></tr><tr class="notion-simple-table-row notion-block-da09c985d6004409816fa590f3097f69"><td class="" style="width:132.66666666666666px"><div class="notion-simple-table-cell">   量子力学</div></td><td class="" style="width:233.65625px"><div class="notion-simple-table-cell">2023-6-16 14:00-16:00</div></td><td class="" style="width:100.65625px"><div class="notion-simple-table-cell">仙1-102</div></td></tr><tr class="notion-simple-table-row notion-block-f9dee66c65d64c5ab58dd9d6f1dfbc8b"><td class="" style="width:132.66666666666666px"><div class="notion-simple-table-cell">    毛概</div></td><td class="" style="width:233.65625px"><div class="notion-simple-table-cell">2023-6-19 14:00-16:00</div></td><td class="" style="width:100.65625px"><div class="notion-simple-table-cell">仙1-207 仙1-213</div></td></tr><tr class="notion-simple-table-row notion-block-5cd4bc23b8a54a84a226672dcb8f4817"><td class="" style="width:132.66666666666666px"><div class="notion-simple-table-cell">   悦读经典</div></td><td class="" style="width:233.65625px"><div class="notion-simple-table-cell">2023—6-30 </div></td><td class="" style="width:100.65625px"><div class="notion-simple-table-cell">ㅤ</div></td></tr><tr class="notion-simple-table-row notion-block-11851d5e04344191b26b43b60f1aa164"><td class="" style="width:132.66666666666666px"><div class="notion-simple-table-cell"> 数据伦理与社会</div></td><td class="" style="width:233.65625px"><div class="notion-simple-table-cell">2023-6-23</div></td><td class="" style="width:100.65625px"><div class="notion-simple-table-cell">ㅤ</div></td></tr><tr class="notion-simple-table-row notion-block-4fa92ab1f74b4d7a9e84e36629f59cd0"><td class="" style="width:132.66666666666666px"><div class="notion-simple-table-cell">应用光学大作业</div></td><td class="" style="width:233.65625px"><div class="notion-simple-table-cell">2023-6-30</div></td><td class="" style="width:100.65625px"><div class="notion-simple-table-cell">ㅤ</div></td></tr></tbody></table><h2 class="notion-h notion-h1 notion-h-indent-0 notion-block-27a6401da92743a9ba5547cedf0687d9" data-id="27a6401da92743a9ba5547cedf0687d9"><span><div id="27a6401da92743a9ba5547cedf0687d9" class="notion-header-anchor"></div><a class="notion-hash-link" href="#27a6401da92743a9ba5547cedf0687d9" title="作业要求"><svg viewBox="0 0 16 16" width="16" height="16"><path fill-rule="evenodd" d="M7.775 3.275a.75.75 0 001.06 1.06l1.25-1.25a2 2 0 112.83 2.83l-2.5 2.5a2 2 0 01-2.83 0 .75.75 0 00-1.06 1.06 3.5 3.5 0 004.95 0l2.5-2.5a3.5 3.5 0 00-4.95-4.95l-1.25 1.25zm-4.69 9.64a2 2 0 010-2.83l2.5-2.5a2 2 0 012.83 0 .75.75 0 001.06-1.06 3.5 3.5 0 00-4.95 0l-2.5 2.5a3.5 3.5 0 004.95 4.95l1.25-1.25a.75.75 0 00-1.06-1.06l-1.25 1.25a2 2 0 01-2.83 0z"></path></svg></a><span class="notion-h-title"><b>作业要求</b></span></span></h2><div class="notion-file notion-block-d8f4dfce0b214189aa01834d2aa11488"><a target="_blank" rel="noopener noreferrer" class="notion-file-link" href="https://file.notion.so/f/s/9d735ef4-8999-4a8b-a6aa-62f96bd1f619/%E3%80%8A%E4%BB%8E%E4%BC%A0%E7%BB%9F%E4%BA%BA%E5%88%B0%E7%8E%B0%E4%BB%A3%E4%BA%BA%E3%80%8B%E6%82%A6%E8%AF%BB%E7%BB%8F%E5%85%B8%E4%BD%9C%E4%B8%9A%E8%A6%81%E6%B1%82(1).pdf?id=d8f4dfce-0b21-4189-aa01-834d2aa11488&amp;table=block&amp;spaceId=ea9c38f2-09f1-4289-b27a-bbcb14a535ab&amp;expirationTimestamp=1693188000000&amp;signature=TwkN_GJels868PxY6lW6obHw_2cUdeYTkIV0pA8JwJA"><svg class="notion-file-icon" viewBox="0 0 30 30"><path d="M22,8v12c0,3.866-3.134,7-7,7s-7-3.134-7-7V8c0-2.762,2.238-5,5-5s5,2.238,5,5v12c0,1.657-1.343,3-3,3s-3-1.343-3-3V8h-2v12c0,2.762,2.238,5,5,5s5-2.238,5-5V8c0-3.866-3.134-7-7-7S6,4.134,6,8v12c0,4.971,4.029,9,9,9s9-4.029,9-9V8H22z"></path></svg><div class="notion-file-info"><div class="notion-file-title">《从传统人到现代人》悦读经典作业要求(1).pdf</div><div class="notion-file-size">219.6KB</div></div></a></div><div class="notion-file notion-block-b107c874784446eb890ec70d4e1ee475"><a target="_blank" rel="noopener noreferrer" class="notion-file-link" href="https://file.notion.so/f/s/88175f50-3518-4a92-96c0-dea4913905a7/%E6%95%B0%E6%8D%AE%E4%BC%A6%E7%90%86%E4%B8%8E%E7%A4%BE%E4%BC%9A.pdf?id=b107c874-7844-46eb-890e-c70d4e1ee475&amp;table=block&amp;spaceId=ea9c38f2-09f1-4289-b27a-bbcb14a535ab&amp;expirationTimestamp=1693188000000&amp;signature=t0DeIwLu71soXoZcWuOcYNIcP2sgFiAlR6nsY3zaB4Q"><svg class="notion-file-icon" viewBox="0 0 30 30"><path d="M22,8v12c0,3.866-3.134,7-7,7s-7-3.134-7-7V8c0-2.762,2.238-5,5-5s5,2.238,5,5v12c0,1.657-1.343,3-3,3s-3-1.343-3-3V8h-2v12c0,2.762,2.238,5,5,5s5-2.238,5-5V8c0-3.866-3.134-7-7-7S6,4.134,6,8v12c0,4.971,4.029,9,9,9s9-4.029,9-9V8H22z"></path></svg><div class="notion-file-info"><div class="notion-file-title">数据伦理与社会.pdf</div><div class="notion-file-size">5461.3KB</div></div></a></div><hr class="notion-hr notion-block-24ff4aee337842fe888f24ad07f5890e"/><div class="notion-blank notion-block-f5e2b156456041789047003693d5f2c3"> </div><h2 class="notion-h notion-h1 notion-h-indent-0 notion-block-b8f92746efc645388fe0025075f8a670" data-id="b8f92746efc645388fe0025075f8a670"><span><div id="b8f92746efc645388fe0025075f8a670" class="notion-header-anchor"></div><a class="notion-hash-link" href="#b8f92746efc645388fe0025075f8a670" title="复习安排"><svg viewBox="0 0 16 16" width="16" height="16"><path fill-rule="evenodd" d="M7.775 3.275a.75.75 0 001.06 1.06l1.25-1.25a2 2 0 112.83 2.83l-2.5 2.5a2 2 0 01-2.83 0 .75.75 0 00-1.06 1.06 3.5 3.5 0 004.95 0l2.5-2.5a3.5 3.5 0 00-4.95-4.95l-1.25 1.25zm-4.69 9.64a2 2 0 010-2.83l2.5-2.5a2 2 0 012.83 0 .75.75 0 001.06-1.06 3.5 3.5 0 00-4.95 0l-2.5 2.5a3.5 3.5 0 004.95 4.95l1.25-1.25a.75.75 0 00-1.06-1.06l-1.25 1.25a2 2 0 01-2.83 0z"></path></svg></a><span class="notion-h-title">复习安排</span></span></h2><div class="notion-text notion-block-7f537212242348c6b753b441cc8bc0c5">6.10</div><details class="notion-toggle notion-block-a725f7bfe5674a62b2d020b34c7dfc02"><summary>应用光学</summary><div><div class="notion-text notion-block-d8c7c2dcded04d7c94d6c420bc46ed33">第三章、第四章、第五章概念</div></div></details><details class="notion-toggle notion-block-1b251038916b4d759c86b7e21109b434"><summary>模拟电路</summary><div><div class="notion-text notion-block-b78e4197253c4f8190900f85e7555743">第五章、第六章（内容加上作业）</div></div></details><details class="notion-toggle notion-block-fe3b654b722b4465a00f53ead76cc5e9"><summary>量子力学</summary><div><div class="notion-text notion-block-7243272b2198484a8407f9460cc82ab6">手推书上内容、理清关系</div></div></details><details class="notion-toggle notion-block-138783f160c44da09712ec95b31f2c7b"><summary>统计物理</summary><div><div class="notion-text notion-block-78b509f0374844b6a7504d265e97d154">复习推导三个配分函数、B-E、F-D，复习态密度</div><div class="notion-blank notion-block-10dd4c257a444b3792e693d72a306e52"> </div><div class="notion-blank notion-block-d6cb03c9133e42d8a0146c96c6b62667"> </div></div></details><table class="notion-simple-table notion-block-f7d3d89d15fe402987511c8d6a2fd694"><tbody><tr class="notion-simple-table-row notion-block-2f3562ca09e3466983632e2953d9a3ba"><td class="" style="width:120px"><div class="notion-simple-table-cell">8:50-10:30</div></td><td class="" style="width:120px"><div class="notion-simple-table-cell">应用光学</div></td></tr><tr class="notion-simple-table-row notion-block-c14b3df7097146cf8f4227d4851afa7e"><td class="" style="width:120px"><div class="notion-simple-table-cell">10:30-11:30</div></td><td class="" style="width:120px"><div class="notion-simple-table-cell">模拟电路第五章</div></td></tr><tr class="notion-simple-table-row notion-block-4070dbe3cf63437eb46064186764e71b"><td class="" style="width:120px"><div class="notion-simple-table-cell">14:00-16:00</div></td><td class="" style="width:120px"><div class="notion-simple-table-cell">模拟电路第六章及作业</div></td></tr><tr class="notion-simple-table-row notion-block-17f5d81b3c784c269006b197b71f2948"><td class="" style="width:120px"><div class="notion-simple-table-cell">16:00-17:00</div></td><td class="" style="width:120px"><div class="notion-simple-table-cell">统计物理复习</div></td></tr><tr class="notion-simple-table-row notion-block-02acb2c107544d8cac377075a327317a"><td class="" style="width:120px"><div class="notion-simple-table-cell">19:00-10:30</div></td><td class="" style="width:120px"><div class="notion-simple-table-cell">统计物理+量子力学</div></td></tr></tbody></table><div class="notion-blank notion-block-1d950134b0fa4b0c896a97939ffed4b0"> </div><div class="notion-text notion-block-5718db5a707e4d538ca3316ea7c9fc5e">6.11</div><details class="notion-toggle notion-block-c853e4b971a145bea5dea01fa920abc4"><summary>模拟电路</summary><div><div class="notion-text notion-block-0f1c019434c04b8bba03f8c26360d4db">第六章</div></div></details><details class="notion-toggle notion-block-4bfe9049ad384c7f8d0caa6e2d7235e5"><summary>应用光学</summary><div><div class="notion-text notion-block-3b6233e35ab84fdea5ef7010ff7a959d">第四章、第五章</div></div></details><details class="notion-toggle notion-block-96cd803580fc4624971b541f8e97b18c"><summary>统计物理</summary><div><div class="notion-text notion-block-59e78b90b23d48a5a9d6abba6699b45b">推导已经复习的内容，做往年卷</div></div></details><details class="notion-toggle notion-block-efed7b46ff6944f5aa937249f917710a"><summary>量子力学</summary><div><div class="notion-text notion-block-da52592f8c3742ab8f46439c2637d32f">复习进动，做第三章作业题</div></div></details><table class="notion-simple-table notion-block-a2e4594ba3fa44059f35fd2359b2a743"><tbody><tr class="notion-simple-table-row notion-block-d8941c398d9740b3a36cce713ce30544"><td class="" style="width:120px"><div class="notion-simple-table-cell">模拟电路</div></td><td class="" style="width:120px"><div class="notion-simple-table-cell">9:00-10:00</div></td></tr><tr class="notion-simple-table-row notion-block-2312a7594d374eb19ff7e6178301a4cb"><td class="" style="width:120px"><div class="notion-simple-table-cell">应用光学</div></td><td class="" style="width:120px"><div class="notion-simple-table-cell">10:00-11:30</div></td></tr><tr class="notion-simple-table-row notion-block-2998138c237c47da8f09a0ff1ba4b107"><td class="" style="width:120px"><div class="notion-simple-table-cell">量子力学</div></td><td class="" style="width:120px"><div class="notion-simple-table-cell">14:00-15:30</div></td></tr><tr class="notion-simple-table-row notion-block-999bba272afd49188204cee235468fec"><td class="" style="width:120px"><div class="notion-simple-table-cell">统计物理</div></td><td class="" style="width:120px"><div class="notion-simple-table-cell">15:30-17:00</div></td></tr></tbody></table></main></div>]]></content:encoded>
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