</noscript> <div id="append_parent"></div><div id="ajaxwaitid"></div> <div id="qmenu_menu" class="p_pop blk" style="display: none;"> <div class="ptm pbw hm"> 请 <a href="javascript:;" class="xi2" onclick="lsSubmit()"><strong>登录</strong></a> 后使用快捷导航<br />没有帐号？<a href="member.php?mod=regnew" class="xi2 xw1">立即注册</a> </div> <div id="fjump_menu" class="btda"></div></div><div class="bottombg"> <!-- topnav --> <div id="wp_toptb_d" class="cl"> <div class="wp cl topll"> <div class="z"><a href="javascript:;" onclick="setHomepage('http://1obs.oecr.com/');">设为首页</a><a href="http://1obs.oecr.com/" onclick="addFavorite(this.href, '光电工程师社区');return false;">收藏本站</a><script type="text/javascript">var _speedMark = new Date();</script> <script type="text/javascript"> document.write(" <a name=\"StranLink\" id=\"StranLink\" style=\"color:#FF0000;cursor:pointer; font-weight:700; font-size:10px;\"> 繁體 </a>"); var Default_isFT = 0 var StranIt_Delay = 1500 </script> <script src="source/plugin/klp_jf/template/language.js?eOg" type="text/javascript"></script> </div> <div class="c"> <a class="tel" href="#" > </a> <em>|</em> <a class="ems" href="#"> </a> </div> <div class="y"> <div class="z"></div> <a href="member.php?mod=logging&action=login&referer=" onClick="showWindow('login', this.href);return false;" title="登录">登录</a> <span class="wi_tpipe">|</span> <a href="member.php?mod=regnew" title="立即注册">立即注册</a> <span class="wi_tpipe">|</span> <a href="javascript:;" onClick="showWindow('login', 'member.php?mod=logging&action=login&viewlostpw=1')" title="找回密码">找回密码</a> </div> </div> </div> <!--切换风格--> <div id="wist_menu" class="wi_pop" style="display: none;"> <ul class="wi_skin cl"> <li onClick="extstyle('')" title="时尚酷黑"><i></i></li> </ul> </div> <!-- /topnav --> <div id="hd_c"><div class="wp"> <div class="hdc cl"> <div class="ttt"> <h2><a href="http://oecr.com/" title="光电工程师社区"><img src="template/focaloptics/image/logo.png" alt="光电工程师社区" border="0" /></a></h2><div id="scbar" class="scbar_narrow cl"> <form id="scbar_form" method="post" autocomplete="off" onsubmit="searchFocus($('scbar_txt'))" action="search.php?searchsubmit=yes" target="_blank"> <input type="hidden" name="mod" id="scbar_mod" value="search" /> <input type="hidden" name="formhash" value="c2ff38be" /> <input type="hidden" name="srchtype" value="title" /> <input type="hidden" name="srhfid" value="7" /> <input type="hidden" name="srhlocality" value="forum::viewthread" /> <table cellspacing="0" cellpadding="0"> <tr> <td class="scbar_icon_td"></td> <td class="scbar_txt_td"><input type="text" name="srchtxt" id="scbar_txt" value="请输入搜索内容" autocomplete="off" x-webkit-speech speech /><button type="submit" name="searchsubmit" id="scbar_btn" sc="1" class="pn pnc" value="true"><strong class="xi2">搜索</strong></button></td> <td class="scbar_btn_td"> </td> </tr> <tr> <td class="scbar_hot_td"> <div id="scbar_hot"> <strong class="xw1">热搜: </strong> <a href="search.php?mod=forum&srchtxt=%B7%C0%CE%ED%C4%A4&formhash=c2ff38be&searchsubmit=true&source=hotsearch" target="_blank" class="xi2" sc="1">防雾膜</a> <a href="search.php?mod=forum&srchtxt=%B0%F4%C1%CF&formhash=c2ff38be&searchsubmit=true&source=hotsearch" target="_blank" class="xi2" sc="1">棒料</a> <a href="search.php?mod=forum&srchtxt=%BA%EC%CD%E2%B7%B4%C9%E4%C4%A4&formhash=c2ff38be&searchsubmit=true&source=hotsearch" target="_blank" class="xi2" sc="1">红外反射膜</a> <a href="search.php?mod=forum&srchtxt=%B9%E2%B5%E7%B6%FE%BC%AB%B9%DC&formhash=c2ff38be&searchsubmit=true&source=hotsearch" target="_blank" class="xi2" sc="1">光电二极管</a> <a href="search.php?mod=forum&srchtxt=%B6%C6%C4%A4%BB%FA&formhash=c2ff38be&searchsubmit=true&source=hotsearch" target="_blank" class="xi2" sc="1">镀膜机</a> <a href="search.php?mod=forum&srchtxt=%B7%B4%C9%E4%C4%A4&formhash=c2ff38be&searchsubmit=true&source=hotsearch" target="_blank" class="xi2" sc="1">反射膜</a> <a href="search.php?mod=forum&srchtxt=%B9%E2%C6%D7%D2%C7&formhash=c2ff38be&searchsubmit=true&source=hotsearch" target="_blank" class="xi2" sc="1">光谱仪</a> <a href="search.php?mod=forum&srchtxt=%B9%E2%B5%E7%CC%BD%CD%B7&formhash=c2ff38be&searchsubmit=true&source=hotsearch" target="_blank" class="xi2" sc="1">光电探头</a> <a href="search.php?mod=forum&srchtxt=%D5%E6%BF%D5%B6%C6%D2%F8&formhash=c2ff38be&searchsubmit=true&source=hotsearch" target="_blank" class="xi2" sc="1">真空镀银</a> <a href="search.php?mod=forum&srchtxt=%C2%CB%B9%E2%C6%AC&formhash=c2ff38be&searchsubmit=true&source=hotsearch" target="_blank" class="xi2" sc="1">滤光片</a> <a href="search.php?mod=forum&srchtxt=%B9%E2%C6%F7%BC%FE&formhash=c2ff38be&searchsubmit=true&source=hotsearch" target="_blank" class="xi2" sc="1">光器件</a> <a href="search.php?mod=forum&srchtxt=%D3%A6%D3%C3%B9%E2%D1%A7&formhash=c2ff38be&searchsubmit=true&source=hotsearch" target="_blank" class="xi2" sc="1">应用光学</a> <a href="search.php?mod=forum&srchtxt=zemax%BC%A4%B9%E2&formhash=c2ff38be&searchsubmit=true&source=hotsearch" target="_blank" class="xi2" sc="1">zemax激光</a> <a href="search.php?mod=forum&srchtxt=%D4%B6%D0%C4%BE%B5%CD%B7&formhash=c2ff38be&searchsubmit=true&source=hotsearch" target="_blank" class="xi2" sc="1">远心镜头</a> <a href="search.php?mod=forum&srchtxt=sio2&formhash=c2ff38be&searchsubmit=true&source=hotsearch" target="_blank" class="xi2" sc="1">sio2</a> <a href="search.php?mod=forum&srchtxt=%D4%F6%CD%B8%C4%A4&formhash=c2ff38be&searchsubmit=true&source=hotsearch" target="_blank" class="xi2" sc="1">增透膜</a> <a href="search.php?mod=forum&srchtxt=%C0%EB%D7%D3%D4%B4%D5%A4%CD%F8&formhash=c2ff38be&searchsubmit=true&source=hotsearch" target="_blank" class="xi2" sc="1">离子源栅网</a> <a href="search.php?mod=forum&srchtxt=zemax&formhash=c2ff38be&searchsubmit=true&source=hotsearch" target="_blank" class="xi2" sc="1">zemax</a> <a href="search.php?mod=forum&srchtxt=%C2%DB%CE%C4&formhash=c2ff38be&searchsubmit=true&source=hotsearch" target="_blank" class="xi2" sc="1">论文</a> <a href="search.php?mod=forum&srchtxt=%B8%DF%B7%B4%C4%A4&formhash=c2ff38be&searchsubmit=true&source=hotsearch" target="_blank" class="xi2" sc="1">高反膜</a> <a href="search.php?mod=forum&srchtxt=%B0%EB%B7%B4%B0%EB%CD%B8%C4%A4&formhash=c2ff38be&searchsubmit=true&source=hotsearch" target="_blank" class="xi2" sc="1">半反半透膜</a> </div> </td> </tr> </table> </form> </div> <ul id="scbar_type_menu" class="p_pop" style="display: none;"><li><a href="javascript:;" rel="curforum" fid="7" >本版</a></li><li><a href="javascript:;" rel="article">文章</a></li><li><a href="javascript:;" rel="forum" class="curtype">帖子</a></li><li><a href="javascript:;" rel="blog">日志</a></li><li><a href="javascript:;" rel="album">相册</a></li><li><a href="javascript:;" rel="user">用户</a></li></ul> <script type="text/javascript"> initSearchmenu('scbar', ''); </script> </div> <div id="wi_wrap"> <div id="nv_a"> <a href="javascript:;" id="qmenu" onMouseOver="delayShow(this, function () {showMenu({'ctrlid':'qmenu','pos':'34!','ctrlclass':'a','duration':2});showForummenu(7);})">快捷导航</a> <ul> <li class="xnv_1"id="mn_portal" ><a href="http://www.oecr.com" hidefocus="true" >首页</a></li> <li class="xnv_2"id="mn_N2fe6" ><a href="http://news.oecr.com/news/dynamic/" hidefocus="true" >光电动态</a></li> <li class="xnv_3"id="mn_N2432" ><a href="http://news.oecr.com/news/science/" hidefocus="true" >光电新知</a></li> <li class="xnv_4"id="mn_Nc1ac" ><a href="http://news.oecr.com/news/exhibition/" hidefocus="true" >光电展会</a></li> <li class="xnv_5"id="mn_Nd0cd" ><a href="http://news.oecr.com/news/talent/" hidefocus="true" >光电人物</a></li> <li class="xnv_6"id="mn_N73a7" ><a href="http://news.oecr.com/news/technology/" hidefocus="true" >光电百科</a></li> <li class="xnv_7"id="mn_N4e7e" ><a href="http://news.oecr.com/news/popularscience/" hidefocus="true" >光电科普</a></li> <li class="xnv_8 a xnv_a8"id="mn_forum_2" onmouseover="showMenu({'ctrlid':this.id,'ctrlclass':'hover','duration':2})"><a href="http://bbs.oecr.com" hidefocus="true" >光电社区</a></li> <li class="xnv_9"id="mn_N72b7" ><a href="http://club.oecr.com/home.php?mod=space&do=blog&view=all" hidefocus="true" >科技博客</a></li> </ul> </div> </div> </div> </div> <div class="p_pop h_pop" id="mn_userapp_menu" style="display: none"></div><ul class="p_pop h_pop" id="mn_home_menu" style="display: none"><li><a href="http://club.oecr.com/home.php?mod=space&do=doing" hidefocus="true" >每日一记</a></li><li><a href="http://club.oecr.com/home.php?mod=space&do=share" hidefocus="true" >精彩分享</a></li><li><a href="http://club.oecr.com/home.php?mod=space&do=album" hidefocus="true" >社区图库</a></li></ul><ul class="p_pop h_pop" id="mn_forum_2_menu" style="display: none"><li><a href="http://bbs.oecr.com/forum-105-1.html" hidefocus="true" >光电商情与信息交流</a></li><li><a href="http://bbs.oecr.com/forum-106-1.html" hidefocus="true" >光电理论及应用技术</a></li><li><a href="http://bbs.oecr.com/forum-107-1.html" hidefocus="true" >光电同行在线互动区</a></li></ul><div id="mu" class="cl"> <ul class="cl " id="snav_mn_userapp" style="display:none"> </ul> </div></div> <script type="text/javascript"> go(); </script> <div id="wp" class="wp"> <div class="wpmain"> <style> #hd,#comment { display:none;} </style> <script type="text/javascript"> var albumback = 0; function changealbumback() { if(albumback == 0){ $('nv_forum').style.background='#000'; $('nv_forum').className = 'albumback'; $('albumback_sw').innerHTML = '开灯'; albumback = 1; }else{ $('nv_forum').style.background='#FFF'; $('nv_forum').className = 'albumback_on'; $('albumback_sw').innerHTML = '关灯'; albumback = 0; } } </script> <script type="text/javascript">var fid = parseInt('7'), tid = parseInt('96872');</script> <script src="data/cache/forum_viewthread.js?eOg" type="text/javascript"></script> <script type="text/javascript">zoomstatus = parseInt(1);var imagemaxwidth = '98';var aimgcount = new Array();</script> <div id="pt" class="bm cl"> <div class="z"> <a href="./" class="nvhm" title="首页">光电工程师社区</a><em>»</em><a href="http://bbs.oecr.com/forum.php">光电社区</a> <em>›</em> <a href="http://bbs.oecr.com/forum.php?gid=106">光电理论及应用技术</a> <em>›</em> <a href="http://bbs.oecr.com/forum-laser-1.html">激光技术与激光加工设备</a> <em>›</em> <a href="http://bbs.oecr.com/thread-96872-1-1.html">[推荐]液晶空间光调制器应用</a> </div> </div> <style id="diy_style" type="text/css"></style> <div class="wp"> <!--[diy=diy1]--><div id="diy1" class="area"></div><!--[/diy]--> </div> <div id="ct" class="ct2 wp cl"> <div class="pic_h bm vw pl"> <div class="h hm cl"> <div class="img_tit_t cl"> <h1 class="ph z">[推荐]液晶空间光调制器应用</h1> <div class="ph_r_con xg1 y vm">查看数:<span class="xi1"> 2298</span> <span class="pipe">|</span> 评论数: <span class="xi1">1</span> <span class="pipe">|</span> <a href="http://club.oecr.com/home.php?mod=spacecp&ac=favorite&type=thread&id=96872" id="k_favorite" onclick="showWindow(this.id, this.href, 'get', 0);" onmouseover="this.title = $('favoritenumber').innerHTML + ' 人收藏'">收藏 <span id="favoritenumber" class="xi1">0</span></a></div> </div> <div class="xg1 z"> <a id="albumback_sw" href="javascript:void(0);" onclick="changealbumback();">关灯</a> <span class="pipe">|</span> <span class="keyboard-tip">提示：支持键盘翻页<-左 右-></span> </div> <div class="xg1 y"><a href="http://bbs.oecr.com/thread-96872-1-1.html" class="thread_mod xg1"><span>帖子模式</span></a></div> </div> <div class="d"> <table cellpadding="0" cellspacing="0" width="100%"> <tr> <td width="780"> <div class="photo_pic"> <div id="photo_pic" style="position: relative; text-align: center;"> <img alt="" id="pic" style="max-width: 780px;_width: 780px;" src="data/attachment/forum/day_091216/0912161048ba21333da1077c9f.jpg"> </div> <div id="imagelist_nav"> <div class="imagelist_album"> <a id="goleft" class="left" onclick="imagelist_go('prev');" href="javascript:void(0);"></a> <div id="imagelistwarp" class="left"> <ul id="imagelistthumb" style="width: 550px; left: 0px;"><img src="static/image/common/loading.gif" width="16" height="16" class="vm" /> 组图打开中，请稍候......</ul> <a id="currentpic" class="mask" href="javascript:void(0)" style="left: 0px;"></a> </div> <a id="goright" class="right" onclick="imagelist_go('next');" href="javascript:void(0);"></a> </div> </div> </div> <script type="text/javascript" reload="1"> var imagewidth = 110; var curnum = 0; var imagecount = '5'; function imagelist_go(type) { var width = '550'; var left = parseInt($('imagelistthumb').style.left.substr(0, ($('imagelistthumb').style.left.length - 2))); var curleft = parseInt($('currentpic').style.left.substr(0, ($('imagelistthumb').style.left.length - 2))); if(type == 'next') { if(left > -(width - 730)) { newleft = imagewidth * 4; if(left - newleft < -(width - 730)) { newleft = width - 730 - left; } imagelist_scrolleft('imagelistthumb', left, newleft); imagelist_scrolleft('currentpic', curleft, newleft); } } else { if(left < 0) { newleft = imagewidth * 4; if(left + newleft > 0) { newleft = -left; } imagelist_scrolleft('imagelistthumb', left, newleft, 'add'); imagelist_scrolleft('currentpic', curleft, newleft, 'add'); } } } function imagelist_scrolleft(id, left, num, type) { if(type == 'add') { left += num; } else { left -= num; } $(id).style.left = left +'px'; } function current_pic(n) { curnum = n; var left = parseInt($('imagelistthumb').style.left.substr(0, ($('imagelistthumb').style.left.length - 2))); $('pic').src=imglist['url'][n]; var curleft = imagewidth * n; if(imagecount > 7 && n >= 4) { if(n < (imagecount - 4)) { curleft = imagewidth * 3; imagelist_scrolleft('imagelistthumb', 0, imagewidth * (n-3)); } else { curleft = imagewidth * (7 - (imagecount - n)); imagelist_scrolleft('imagelistthumb', 0, imagewidth * (imagecount-7)); } } else { imagelist_scrolleft('imagelistthumb', 0, 0); } $('currentpic').style.left = curleft+'px'; }var imagelistkey = 'af028fbb0c448f65'; var imglist = new Array(); var imagelist_html = ''; imglist['aid'] = ['48497','48499','48500','48501','48502']; imglist['url'] = ['data/attachment/forum/day_091216/0912161048ba21333da1077c9f.jpg','data/attachment/forum/day_091216/091216105173f2e64077d4485c.jpg','data/attachment/forum/day_091216/091216105128861a6004d33633.jpg','data/attachment/forum/day_091216/0912161051fbf0dd607b604982.jpg','data/attachment/forum/day_091216/0912161051c52242d1482d5fc5.jpg']; var count = imglist['aid'].length; for(i = 0; i < count; i++) { imagelist_html += '<li><div class="">' +'<img src="forum.php?mod=image&aid=' + imglist['aid'][i] + '&size=100x100&key=' + imagelistkey + '&atid=96872" width="100" height="100" onclick="current_pic('+i+');"/><span>'+(i+1)+'/'+count+'</span></div></li>'; } $('imagelistthumb').innerHTML = imagelist_html; function createElem(e){ var obj = document.createElement(e); obj.style.position = 'absolute'; obj.style.zIndex = '1'; obj.style.cursor = 'pointer'; obj.onmouseout = function(){ this.style.background = 'none';} return obj; } function viewPhoto(){ var divappend = 0; if(!$('pic-prev')) { var pager = createElem('div'); var pre = createElem('div'); var next = createElem('div'); pager.id='pager'; pre.id='pic-prev'; next.id='pic-next'; divappend = 1; } else { var pager = $('pager'); var pre = $('pic-prev'); var next = $('pic-next'); } var cont = $('photo_pic'); var tar = $('pic'); var w = 390; var objpos = fetchOffset(tar); pager.style.position = 'absolute'; pager.style.left = '0px'; pager.style.top = '0px'; pager.style.width = '780px'; pager.style.height = tar.height + 'px'; pre.style.left = 0; next.style.right = 0; pre.style.width = next.style.width = w + 'px'; pre.style.height = next.style.height = tar.height + 'px'; pre.innerHTML = next.innerHTML = '<img src="static/image/common/emp.gif" width="' + w + '" height="' + tar.height + '" />'; pre.onmouseover = function(){ this.style.background = 'url(static/image/common/pic-prev.png) no-repeat 0 50%'; } pre.onclick = function(){if(curnum>=1) {$('pic').src=imglist['url'][curnum-1];current_pic(curnum-1);}} pre.title = ''; next.onmouseover = function(){ this.style.background = 'url(static/image/common/pic-next.png) no-repeat 100% 50%'; } next.onclick = function(){if(curnum < imagecount - 1) {$('pic').src=imglist['url'][curnum+1];current_pic(curnum+1);}} next.title = ''; //cont.style.position = 'relative'; if(divappend == 1) { cont.appendChild(pager); pager.appendChild(pre); pager.appendChild(next); } } var onopen = 0; $('pic').onload = function(){ viewPhoto(); if(onopen == 0) { onopen = 1; } else { var imagepos = fetchOffset($('photo_pic')); document.documentElement.scrollTop = imagepos['top']; } } document.onkeyup = function(e){ e = e ? e : window.event; var tagname = BROWSER.ie ? e.srcElement.tagName : e.target.tagName; if(tagname == 'INPUT' || tagname == 'TEXTAREA') return; actualCode = e.keyCode ? e.keyCode : e.charCode; if(actualCode == 39) { $('pic-next').click(); } if(actualCode == 37) { $('pic-prev').click(); } } </script> <div id="p_btn" class="mtw mbm cl xs1" style="display:none;"> <a href="http://club.oecr.com/home.php?mod=spacecp&ac=share&type=thread&id=96872" id="k_share" onclick="showWindow(this.id, this.href, 'get', 0);" onmouseover="this.title = $('sharenumber').innerHTML + ' 人分享'"><i><img src="static/image/common/oshr.png" alt="分享" />分享<span id="sharenumber">0</span></i></a> <a href="http://club.oecr.com/home.php?mod=spacecp&ac=favorite&type=thread&id=96872" id="k_favorite" onclick="showWindow(this.id, this.href, 'get', 0);" onmouseover="this.title = $('favoritenumber').innerHTML + ' 人收藏'"><i><img src="static/image/common/fav.gif" alt="收藏" />收藏<span id="favoritenumber">0</span></i></a> <a id="recommend_add" href="forum.php?mod=misc&action=recommend&do=add&tid=96872&hash=c2ff38be" onclick="showWindow('login', this.href)" onmouseover="this.title = $('recommendv_add').innerHTML + ' 人支持'"><i><img src="static/image/common/rec_add.gif" alt="支持" />支持<span id="recommendv_add">0</span></i></a> <a id="recommend_subtract" href="forum.php?mod=misc&action=recommend&do=subtract&tid=96872&hash=c2ff38be" onclick="showWindow('login', this.href)" onmouseover="this.title = $('recommendv_subtract').innerHTML + ' 人反对'"><i><img src="static/image/common/rec_subtract.gif" alt="反对" />反对<span id="recommendv_subtract">0</span></i></a> </div> </td> <td valign="top" class="album_side_r"> <div class="album_side"> <div class="hm mtn mbn"> <a href="http://club.oecr.com/space-uid-80631.html" target="_blank" class="xi2"><img src="http://www.oecr.com/uc_server/avatar.php?uid=80631&size=small" /></a> <span class="tit_author"> <a href="http://club.oecr.com/space-uid-80631.html">大巴</a> </span> </div> <div class="date"><span>发布时间:</span> 2009-12-16 10:54</div> <div class="album_info"> <h3>正文摘要: </h3> <p>液晶空间光调制器及其应用 空间光调制器是一种对光波的光场分布进行调制的元件，广泛地应用于光信息处理、 光束变换、输出显示等诸多应用领域。液晶空间光调制器(SLM)以制作简单，价格低，耗能 低，易控制，易制 ...</p> </div> </div> </td> </tr> </table> </div> </div> <div class="bm vw pl" id="comment"> <div class="bm_h cl"> <h2>回复</h2> </div> <div class="bm_c"> <div id="postlistreply" class="xld xlda mbm"><div id="post_new" class="viewthread_table" style="display: none"></div></div><div id="post_615994" class="xld xlda mbm"><dl class="bbda cl"> <dd class="m avt"><a href="http://club.oecr.com/space-uid-80631.html"><img src="http://www.oecr.com/uc_server/avatar.php?uid=80631&size=small" /></a></dd> <dt> <span class="y xw0"> </span> <a href="http://club.oecr.com/space-uid-80631.html" target="_blank" class="xi2">大巴</a><em id="author_615994"> 发表于</em> <span class="xg1 xw0">2009-12-16 11:01:13</span> </dt> <dd class="z"><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_615994"> 阱。另外，通过SLM可以产生多个阱域2，3），实现多粒子的操控，并且还可用于微粒间相<br /> 互作用力的测量。值得一提的是，利用SLM可将基模Gaussian光束转换成Laguerre-<br /> Gaussian光束，由于Laguerre-Gaussian具有轨道角动量，可以实现对微粒的旋转操<br /> 控，该研究引起了广泛的兴趣4）。<br /> 图2 Twin光阱全息光镊装置<br /> microscope objective=显微物镜 Object plane=物平面<br /> 螺旋位相相衬成像<br /> 在光学显微镜中，暗场或相衬方法常被用来提高物体成像的对比度。实质上，这些方<br /> 法都可看作是傅立叶平面上的光学滤波。类似于微分干涉相差显微技术，螺旋位相相衬法<br /> 也是利用对相移的敏感性来提高成像的清晰度，特别是边缘。由于光束的对称性，还可以<br /> 对各向均匀介质物体成像进行对比增强。并且，较传统相差显微成像，边缘对比度要提高<br /> 几个量级。如图3，Severin.F等采用了Holoeye 3000反射型SLM，分辨率1920×<br /> 1080，像元大小10um。通过它产生闪耀光栅执行滤波处理5)。这里，进行螺旋相位滤波<br /> 的全息光栅，中心有一个分叉，对应于位相不连续奇点。<br /> 图3 螺旋位相光束在成像中用于提高边缘对比度的实验装置<br /> Laser diode=激光二极管，Sample stage=样品台，Objective=物镜，Mirror= 反射镜，<br /> Microscope=显微镜，Relay lenses=中继镜，camera=相机<br /> 图4 相位物体的对比增强。A-C为明场成像，B-D为螺旋位相滤波成像<br /> 飞秒脉冲整形<br /> 飞秒脉冲整形的基本原理是频域和时域是互为傅里叶变换的，所需要的输出波形可由<br /> 滤波实现。图5是脉冲整形的基本装置6)，它是由衍射光栅、透镜和脉冲整形模板组成的4f<br /> 系统。超短激光脉冲照射到光栅和透镜上被色散成各个光频成份。在两透镜的中间位置上<br /> 插入一块空间模式的模板或可编程的空间光调制器，目的是调制空间色散的各光频成份的<br /> 振幅和位相遥，光栅和透镜看作是零色散脉冲压缩结构。超短脉冲中的各光频成份由第一<br /> 个衍射光栅角色散，然后在第一个透镜的焦平面聚焦成一个小的、衍射有限的光斑。这里<br /> 的各光频成份在一维方向上空间分离，在光栅上从不同角度散开，在第一个透镜的后焦平<br /> 面上进行了空间分离，第一个透镜实现了一次傅里叶变换。第二个透镜和光栅把这些分离<br /> 的所有频率成份重新组合，这样就得到了一个整形输出脉冲，这个输出脉冲的形状由光谱<br /> 面上模板的模式给出。<br /> 这里，E.Frumker 等只使用了一个透镜和光栅进行脉冲整形。其中，SLM 为Holoeye<br /> HEO 1080P，承受功率密度可大于2W/cm2。在制冷的状态下，可进一步提高光功率。<br /> 图5 飞秒脉冲整形实验光路图<br /> FL=聚焦透镜，M1,M2=反射镜，G=光栅，SM=扫描镜，L1,L2=透镜<br /> 自适应光学<br /> 自适应光学技术，是一种能够实时校正光学系统随机误差并使系统始终保持良好工作<br /> 性能的新技术，早期在天文观测中是用来修复大气湍流等因素对光波波前的扭曲，通过动<br /> 态地对波前误差的实时探测-控制-校正，来改善成像质量。目前，在眼底视网膜成像、大<br /> 视场显微成像等方面也得到应用。自适应光学系统中，关键部件是哈特曼波前传感器与变<br /> 形镜7)或空间光调制器（图6）。<br /> 另外，SLM还可用来模拟大气扰动，为实验室里研究大气中光学成像提供有力支持<br /> 8)。<br /> 图6 光波前闭环控制示意图</td></tr></table> </div> <div id="comment_615994" class="cm"> </div> <div id="post_rate_div_615994"></div> </div> </dd> </dl> </div> </div> </div> </div> <script type="text/javascript"> new lazyload(); </script> <div class="wp mtn"> <!--[diy=diy3]--><div id="diy3" class="area"></div><!--[/diy]--> </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":"forum","md":"viewthread","fi":"7","ti":"96872","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, 2025-12-25 20:33 </p> </div> </div></div> </div> </div> <!--bottombg结束--> <!--<div id="scrolltop"> <span><a href="http://bbs.oecr.com/forum.php?mod=post&action=reply&fid=7&tid=96872&extra=&page=1&from=album" onclick="showWindow('reply', this.href)" class="replyfast" title="快速回复"><b>快速回复</b></a></span> <span hidefocus="true"><a title="返回顶部" onclick="window.scrollTo('0','0')" class="scrolltopa" ><b>返回顶部</b></a></span> <span> <a href="http://bbs.oecr.com/forum-laser-1.html" hidefocus="true" class="returnlist" title="返回列表"><b>返回列表</b></a> </span> </div> --> <div id="scrolltop"> <span><a href="http://bbs.oecr.com/forum.php?mod=post&action=reply&fid=7&tid=96872&extra=&page=1&from=album" onclick="showWindow('reply', this.href)" class="replyfast" title="快速回复"><b>快速回复</b></a></span> <span hidefocus="true"><a title="返回顶部" onclick="window.scrollTo('0','0')" class="scrolltopa" ><b>返回顶部</b></a></span> <span> <a href="http://bbs.oecr.com/forum-laser-1.html" hidefocus="true" class="returnlist" title="返回列表"><b>返回列表</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|1766666025|d5f088dbaf5b98fbe30ee90194f003d5|2'; </script> <script src="http://discuz.gtimg.cn/cloud/scripts/discuz_tips.js?v=1" type="text/javascript" charset="UTF-8"></script></body></html>