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新型元透鏡徹底改變了傳統(tǒng)的真空紫外光學(xué)技術(shù)

指南者留學(xué) 2022-06-15 12:24:11 閱讀量：1276

<div data-page-id="doxcnl5Xv9yOIYBCdE78cklTqCg" data-docx-has-block-data="true"> <div class="image-uploaded gallery old-record-id-doxcns4kGCm0MOoKuSwGUqQIPyf" style="text-align: justify;" data-type="image" data-ace-gallery-json="{"items":[{"uuid":"c0d36812-0da4-4eba-86bf-69bb12590ed6","height":1065,"width":1600,"currHeight":1065,"currWidth":1600,"natrualHeight":1065,"natrualWidth":1600,"pluginName":"imageUpload","scale":1,"src":"https%3A%2F%2Finternal-api-drive-stream.feishu.cn%2Fspace%2Fapi%2Fbox%2Fstream%2Fdownload%2Fall%2FboxcnPxeugEiEGzgtUOog3iax5u%2F%3Fmount_node_token%3Ddoxcns4kGCm0MOoKuSwGUqQIPyf%26mount_point%3Ddocx_image","file_token":"boxcnPxeugEiEGzgtUOog3iax5u","image_type":"image/png","size":2053845,"comments":[]}]}"> <div data-page-id="doxcnl5Xv9yOIYBCdE78cklTqCg" data-docx-has-block-data="true"> <div class="image-uploaded gallery old-record-id-doxcns4kGCm0MOoKuSwGUqQIPyf" style="text-align: center;" data-type="image" data-ace-gallery-json="{"items":[{"uuid":"8bfa8987-1ecf-4b03-b1c3-b1cfb0b3a3b1","height":1065,"width":1600,"currHeight":1065,"currWidth":1600,"natrualHeight":1065,"natrualWidth":1600,"pluginName":"imageUpload","scale":1,"src":"https%3A%2F%2Finternal-api-drive-stream.feishu.cn%2Fspace%2Fapi%2Fbox%2Fstream%2Fdownload%2Fall%2FboxcnPxeugEiEGzgtUOog3iax5u%2F%3Fmount_node_token%3Ddoxcns4kGCm0MOoKuSwGUqQIPyf%26mount_point%3Ddocx_image","file_token":"boxcnPxeugEiEGzgtUOog3iax5u","image_type":"image/png","size":2053845,"comments":[]}]}"><img src="https://info.compassedu.hk/sucai/content/1657534508529/1657534508529.png" width="807" height="537" /></div> </div> </div> <div class="ace-line ace-line old-record-id-doxcnmkySkskS2gu4kTctKEvz2e" style="text-align: center;"><span class="h6"><em>蔡丁炳教授（右）及陳木固博士。</em></span></div> <div class="ace-line ace-line old-record-id-doxcnmkySkskS2gu4kTctKEvz2e" style="text-align: justify;"> </div> <div class="ace-line ace-line old-record-id-doxcnemkyGA0McS2wiuUYu3Ccdd" style="text-align: justify;"><span class="p"><strong>由香港城市大學(xué)（城大）共同領(lǐng)導(dǎo)的一個(gè)研究小組成功開(kāi)發(fā)出一種新型真空紫外（VUV）元透鏡，可以產(chǎn)生和聚焦VUV光，這是VUV光學(xué)市場(chǎng)的顛覆性技術(shù)。</strong></span></div> <div class="ace-line ace-line old-record-id-doxcnemkyGA0McS2wiuUYu3Ccdd" style="text-align: justify;"> </div> <div class="ace-line ace-line old-record-id-doxcn8kEIkIco6oeaq4mgOZLqRg" style="text-align: justify;"><span class="p">VUV用于半導(dǎo)體制造，光化學(xué)和材料科學(xué)。聚焦VUV光源是納米光刻，材料加工，先進(jìn)制造和其他工業(yè)領(lǐng)域強(qiáng)烈需要的。</span></div> <div class="ace-line ace-line old-record-id-doxcn8kEIkIco6oeaq4mgOZLqRg" style="text-align: justify;"> </div> <div class="ace-line ace-line old-record-id-doxcnK60qiCYKqoSSwLxXh6bHQf" style="text-align: justify;"><span class="p">但是，使用起來(lái)成本很高。波長(zhǎng)在100至200納米（nm）之間的VUV被空氣中的氧氣強(qiáng)烈吸收，需要真空室或其他專(zhuān)用環(huán)境。</span></div> <div class="ace-line ace-line old-record-id-doxcnK60qiCYKqoSSwLxXh6bHQf" style="text-align: justify;"> </div> <div class="ace-line ace-line old-record-id-doxcnK60qiCYKqoSSwLxXh6bHQf" style="text-align: justify;"><span class="p">傳統(tǒng)上，非常笨重和昂貴的系統(tǒng)具有特殊和稀有的非線(xiàn)性晶體用于產(chǎn)生和聚焦VUV光。</span></div> <div class="ace-line ace-line old-record-id-doxcnK60qiCYKqoSSwLxXh6bHQf" style="text-align: justify;"> </div> <div class="ace-line ace-line old-record-id-doxcnOmwAmkCeMQmwsRCw3yhnrc" style="text-align: justify;"><span class="p">此外，幾乎所有用于傳統(tǒng)鏡片的玻璃都不適合VUV，因?yàn)樗鼈冊(cè)谠摰貐^(qū)具有很強(qiáng)的吸收性。目前用于鏡片的少數(shù)VUV透射材料相對(duì)脆弱，對(duì)薄鏡片的制造和設(shè)計(jì)施加了實(shí)際限制。</span></div> <div class="ace-line ace-line old-record-id-doxcnOmwAmkCeMQmwsRCw3yhnrc" style="text-align: justify;"> </div> <div class="ace-line ace-line old-record-id-doxcnUSEoEgASuye2iLb1wjSeb7" style="text-align: justify;"><span class="p">電氣工程系（EE）講座教授<strong>蔡定平教授</strong>和EE研究助理教授<strong>陳木谷博士</strong>設(shè)計(jì)并制造了150納米長(zhǎng)的三角形氧化鋅納米天線(xiàn)陣列，形成VUV元透鏡。</span></div> <div class="ace-line ace-line old-record-id-doxcnUSEoEgASuye2iLb1wjSeb7" style="text-align: justify;"> </div> <div class="ace-line ace-line old-record-id-doxcnaKAIy24UWog8qSmLcC2aRg" style="text-align: justify;"><span class="p">“我們開(kāi)發(fā)了一種在氧化鋅薄膜上具有復(fù)雜納米結(jié)構(gòu)的元透鏡。它能夠轉(zhuǎn)換和聚焦VUV光。這種元透鏡為非線(xiàn)性VUV的產(chǎn)生和聚焦產(chǎn)生的光提供了一種緊湊的方法，“Tsai教授說(shuō)，他是最近發(fā)表在<em>《科學(xué)進(jìn)展》上的</em>論文的通訊作者之一，題為”<a href="https://www.science.org/doi/10.1126/sciadv.abn5644" target="_blank" rel="noopener">真空紫外線(xiàn)非線(xiàn)性超透鏡</a>”。</span></div> <div class="ace-line ace-line old-record-id-doxcnaKAIy24UWog8qSmLcC2aRg" style="text-align: justify;"> </div> <div class="ace-line ace-line old-record-id-doxcnKgSGGGq46CEOU1cBybAX1g" style="text-align: justify;"><span class="p">直徑為45微米的新型VUV元透鏡可以將394nm波長(zhǎng)的UV光轉(zhuǎn)換為197nm波長(zhǎng)的VUV光，并將VUV光聚焦在直徑小于200萬(wàn)分之一米的小點(diǎn)上。在美國(guó)萊斯大學(xué)的測(cè)試中，一個(gè)聚焦的光點(diǎn)將功率密度提高了21倍。</span></div> <div class="ace-line ace-line old-record-id-doxcnKgSGGGq46CEOU1cBybAX1g" style="text-align: justify;"> </div> <div class="ace-line ace-line old-record-id-doxcneg2GiMyGQkkKSqd7DQ8Xlh" style="text-align: justify;"><span class="p">“我們的VUV元透鏡結(jié)構(gòu)緊湊，重量輕，效率高，可以通過(guò)半導(dǎo)體電子制造工藝批量生產(chǎn)。這種新穎而顛覆性的元器件可以徹底改變傳統(tǒng)的VUV光學(xué)技術(shù)及其市場(chǎng)，“蔡教授說(shuō)。</span></div> <div class="ace-line ace-line old-record-id-doxcneg2GiMyGQkkKSqd7DQ8Xlh" style="text-align: justify;"> </div> <div class="ace-line ace-line old-record-id-doxcnqiee0iKOSmqcSl97f73SXS" style="text-align: justify;"><span class="p">元透鏡可以大大簡(jiǎn)化VUV系統(tǒng)設(shè)計(jì)，并促進(jìn)更先進(jìn)的應(yīng)用。這項(xiàng)工作為開(kāi)發(fā)低損耗VUV組件和提高VUV制度的可訪(fǎng)問(wèn)性提供了一個(gè)有用的平臺(tái)。</span></div> <div class="ace-line ace-line old-record-id-doxcnqiee0iKOSmqcSl97f73SXS" style="text-align: justify;"> </div> <div class="ace-line ace-line old-record-id-doxcnwSsiEemiawA2KswZI3cVnh" style="text-align: justify;"><span class="p">本研究由香港特區(qū)政府大學(xué)教育資助委員會(huì)/研究資助局卓越領(lǐng)域計(jì)劃（AoE）資助。蔡教授是AoE項(xiàng)目“元光學(xué)，元聲學(xué)和元器件”的項(xiàng)目協(xié)調(diào)員。</span></div> <div class="ace-line ace-line old-record-id-doxcnwSsiEemiawA2KswZI3cVnh" style="text-align: justify;"> </div> <div class="ace-line ace-line old-record-id-doxcncoOIMMGuuGKY4Zrv5gICvf" style="text-align: justify;"><span class="p">該論文的共同作者包括美國(guó)萊斯大學(xué)的<strong>Naomi Halas教授，Peter Nordlander教授</strong>，<strong>Michael Semmlinger博士，Ming Zhang博士</strong>，<strong>Catherine Arndt博士，Benjamin Cerjan</strong>博士和<strong>Jan Yang博士</strong>;臺(tái)灣國(guó)立陽(yáng)明交通大學(xué)<strong>曾明倫博士</strong>;臺(tái)灣中央研究院<strong>的黃子廷</strong>和<strong>朱成雄博士</strong>;國(guó)立臺(tái)灣大學(xué)<strong>郭信宇博士</strong>;和臺(tái)灣國(guó)立聯(lián)合大學(xué)的<strong>Vin-Cent Su博士</strong>。</span></div> <div class="image-uploaded gallery old-record-id-doxcn6sgm6oKuiSS20aSJNYUDwb" style="text-align: justify;" data-type="image" data-ace-gallery-json="{"items":[{"uuid":"1e7b2a88-2171-4104-87bf-07946c0f7bfe","height":900,"width":1600,"currHeight":900,"currWidth":1600,"natrualHeight":900,"natrualWidth":1600,"pluginName":"imageUpload","scale":1,"src":"https%3A%2F%2Finternal-api-drive-stream.feishu.cn%2Fspace%2Fapi%2Fbox%2Fstream%2Fdownload%2Fall%2FboxcnH33TatWPM1cjZPPbJZMQzf%2F%3Fmount_node_token%3Ddoxcn6sgm6oKuiSS20aSJNYUDwb%26mount_point%3Ddocx_image","file_token":"boxcnH33TatWPM1cjZPPbJZMQzf","image_type":"image/png","size":1288069,"comments":[]}]}"> <div data-page-id="doxcnl5Xv9yOIYBCdE78cklTqCg" data-docx-has-block-data="true"> <div class="image-uploaded gallery old-record-id-doxcn6sgm6oKuiSS20aSJNYUDwb" style="text-align: center;" data-type="image" data-ace-gallery-json="{"items":[{"uuid":"7010491a-731b-437e-a9d9-3e4a1ad831a4","height":900,"width":1600,"currHeight":900,"currWidth":1600,"natrualHeight":900,"natrualWidth":1600,"pluginName":"imageUpload","scale":1,"src":"https%3A%2F%2Finternal-api-drive-stream.feishu.cn%2Fspace%2Fapi%2Fbox%2Fstream%2Fdownload%2Fall%2FboxcnH33TatWPM1cjZPPbJZMQzf%2F%3Fmount_node_token%3Ddoxcn6sgm6oKuiSS20aSJNYUDwb%26mount_point%3Ddocx_image","file_token":"boxcnH33TatWPM1cjZPPbJZMQzf","image_type":"image/png","size":1288069,"comments":[]}]}"><img src="https://info.compassedu.hk/sucai/content/1657534501379/1657534501379.png" width="807" height="454" /></div> </div> </div> <div class="ace-line ace-line old-record-id-doxcn6WqGaI8qq4okemjexo6zlg" style="text-align: justify;"><span class="p"><em>新型元透鏡將394納米紫外線(xiàn)（藍(lán)色）轉(zhuǎn)換為197納米“真空紫外線(xiàn)”（粉紅色），并將VUV輸出聚焦在直徑小于200萬(wàn)分之一米的小點(diǎn)上。微小的三角形納米諧振器，在氧化鋅（ZnO）的微觀(guān)圓盤(pán)上精確配置的同心圓中。圖中顯示了元透鏡的幾個(gè)掃描電子顯微鏡（SEM）圖像（右下角）。在SEM圖像中可以觀(guān)察到具有規(guī)則變化的旋轉(zhuǎn)角度的明確定義的納米三角形。</em></span></div> </div>

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