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</blockquote></div><br /> 顾名思义吧，top-hat就是像帽子顶部一样的强度分布<br /> flat-top就是平顶分布<br /> 平顶的好处是聚焦效果更好。<br /> 实现方法一般是衍射元件整形。<br /> <br /> 还有所谓的super-Gaussian分布，都有类似的意思</div> <div class="postmsg">多谢<br /> 另外这些是不是都是单模激光<br /> 还有MULI-MODE是什么意思<br /> 也是为了改善高斯光束的方式吗,<br /> 它是怎么实现的<br /> 分布图是什么样子<br /> 也是单模的吗</div> <div class="postmsg"><div class="quote"><blockquote>原帖由 <i>wangdong_743137</i> 于 2008-2-27 17:21 发表 <a href="http://bbs.oecr.com/redirect.php?goto=findpost&pid=431763&ptid=66477" target="_blank"><img id="aimg_aNzpN" onclick="zoom(this, this.src, 0, 0, 0)" class="zoom" src="static/image/common/back.gif" onmouseover="img_onmouseoverfunc(this)" onload="thumbImg(this)" border="0" alt="" /></a><br /> 多谢<br /> 另外这些是不是都是单模激光<br /> 还有MULI-MODE是什么意思<br /> 也是为了改善高斯光束的方式吗,<br /> 它是怎么实现的<br /> 分布图是什么样子<br /> 也是单模的吗 </blockquote></div><br /> 基础的东西就多看看激光原理吧，上面都有讲清楚的啊</div> <div class="postmsg">平顶光斑，即可以有多模的，也可以有单横模的。</div> <div class="postmsg">给个参考文献<br /> Design and fabrication of an all-dielectric grating with <strong><i><font color="Red">top-hat </font></i></strong>high diffraction efficiency over a broad spectral range</div> <div class="postmsg">有没有聚焦光斑整成平顶分布的器件？？</div> <div class="postmsg">做激光光束整形的公司应该一搜一大堆吧，特别是以色列什么的。一会儿找找。</div> <div class="postmsg">看来lz是新手啊<br /> <br /> 新手建议看激光原理去</div> <div style="height200px;"></div> <ul class="xl xl2 cl" style="border-top: 1px #cccccc dashed;margin:5px 0 ;padding-top:5px"> <dl><b> 同一主题资料:</b></dl> <dl style="margin:10px 1px;display:inline"><a href="attachcenter-page.html?aid=24276" title="top1.gif"><img src="data/attachment/forum/month_0802/20080227_8a9403a6a11475c0381asFm8Cvn0Ojm4.gif" alt="top1.gif" title="top1.gif" onload="javascript:if(this.width>130)this.width=130;"></a></dl> <dl class='icon'><img src="static/image/filetype/pdf.gif" border="0" class="vm" alt="" /> <a href="attachcenter-page.html?aid=25319" title="abbr_b3a2a43c382a43bbd496c8f7e7e44c4e.pdf">abbr_b3a2a43c382a43bbd496c8f7e7e44c4e.pdf</a> <font color="#AAAAAA">(807.75 KB)</font> </dl> </div> </div> </div> </div></div> </div> <!--autocomment filter by maxnum--> <div class="ft_wp"> <div id="ft" class=" cl"> <div id="flk" > <p> <a href="http://wpa.qq.com/msgrd?V=3&Uin=20600600&Site=光电工程师社区&Menu=yes&from=discuz" target="_blank" title="QQ"><img src="static/image/common/site_qq.jpg" alt="QQ" /></a><span class="pipe">|</span><a href="http://m.oecr.com" >手机版</a><span class="pipe">|</span><a href="http://so.oecr.com" title="站内搜索" target="_blank" >搜索</a><span class="pipe">|</span><a href="http://www.focaloptics.com" title="主办单位：武汉焦点光学技术有限公司" target="_blank" >焦点光学</a><span class="pipe">|</span><a href="http://www.oecr.com" target="_blank">光电工程师社区</a> ( <a href="http://beian.miit.gov.cn/" target="_blank">鄂ICP备17021725号-1</a> <a href="http://www.beian.gov.cn/portal/registerSystemInfo?recordcode=42011102000821" target="_blank">鄂网安备42011102000821号</a> ) <span id="tcss"></span><script type="text/javascript" src="http://tcss.qq.com/ping.js?v=1eOg" charset="utf-8"></script><script type="text/javascript" reload="1">pgvMain({"discuzParams":{"r2":"1028778","ui":0,"rt":"plugin","pn":1,"qq":"000"},"extraParams":""});</script></p> <p class="xs0"> <span id="debuginfo"> Copyright 2015 光电工程师社区 版权所有 All Rights Reserved. </span> </p> </div> <div id="ftl" > <p>申明：本站为非盈利性公益个人网站，已关闭注册功能，本站所有内容均为网络收集整理，不代表本站立场。如您对某些内容有质疑或不快，请及时联系我们处理！ </p> </div> <div id="frt" > <div class="wp"> <p class="dd01"> © 2001-2022 <a href="http://www.oecr.com" target="_blank">光电工程师社区</a> 网站备案号：<a href="https://beian.miit.gov.cn/">鄂ICP备17021725号</a> 网站公安备案号：<a href="http://www.beian.gov.cn/portal/registerSystemInfo?recordcode=42011102000821">鄂42011102000821号</a> Powered by <a href="http://www.discuz.net" target="_blank">Discuz!</a> <em>X3.2</em> </p><p class="dd02">GMT+8, 2025-12-20 05:55 </p> </div> </div></div> </div> </div> <!--bottombg结束--> <script src="home.php?mod=misc&ac=sendmail&rand=1766181330" type="text/javascript"></script> <!--<div id="scrolltop"> <span hidefocus="true"><a title="返回顶部" onclick="window.scrollTo('0','0')" class="scrolltopa" ><b>返回顶部</b></a></span> </div> --> <div id="scrolltop"> <span hidefocus="true"><a title="返回顶部" onclick="window.scrollTo('0','0')" class="scrolltopa" ><b>返回顶部</b></a></span> </div> <script type="text/javascript">_attachEvent(window, 'scroll', function () { showTopLink(); });checkBlind();</script> <div id="discuz_tips" style="display:none;"></div> <script type="text/javascript"> var tipsinfo = '1028778|X3.2|0.6||0||0|7|1766181330|d3f24671a66d10e7e078183841d5f39a|2'; </script> <script src="http://discuz.gtimg.cn/cloud/scripts/discuz_tips.js?v=1" type="text/javascript" charset="UTF-8"></script></body></html>