典型文献
Terahertz metalens of hyper-dispersion
文献摘要：
Chromatic optical lenses have promising applications in three-dimensional imaging,which allows fast spectral tomography without mechanical moving parts.The scanning range of current chromatic optical lenses is limited by their dispersion ability.The recent development in metasurfaces provides ideal blocks for optical wavefront manipulation and dispersion engineering of artificial materials at sub-wavelength scales.Hyper-dispersive metal-enses can be realized by utilizing dispersive meta-atoms,which have enhanced dispersion compared to regular diffractive lenses.This is critical for increasing the imaging depth of fast spectral tomography.In this work,a hyper-dispersive metalens is realized with a chromatic dispersion 1.76 times greater than that of a regular dif-fractive metalens in the THz frequency range of 2.40-2.61 THz by simultaneously controlling the frequency-dependent phase,group delay(GD),and GD dispersion of the metalens.This approach can also be extended to other optical spectra and improve the performance of spectral tomography.
文献关键词：
中图分类号：
作者姓名：
FEN ZHAO;ZIPING LI;SHENG LI;XUEMEI DAI;YI ZHOU;XIAOYU LIAO;J.C.CAO;GAOFENG LIANG;ZHENGGUO SHANG;ZHIHAI ZHANG;ZHONGQUAN WEN;HUA LI;GANG CHEN
作者机构：
Key Laboratory of Optoelectronic Technology and Systems(Chongqing University),Ministry of Education,School of Optoelectronic Engineering,Chongqing University,Chongqing 400044,China;Key Laboratory of Terahertz Solid State Technology,Shanghai Institute of Microsystem and Information Technology,Chinese Academy of Sciences,Shanghai 200050,China
文献出处：
引用格式：
[1]FEN ZHAO;ZIPING LI;SHENG LI;XUEMEI DAI;YI ZHOU;XIAOYU LIAO;J.C.CAO;GAOFENG LIANG;ZHENGGUO SHANG;ZHIHAI ZHANG;ZHONGQUAN WEN;HUA LI;GANG CHEN-.Terahertz metalens of hyper-dispersion)[J].光子学研究（英文）,2022(04):886-895
A类：
Chromatic,enses,fractive
B类：
Terahertz,metalens,hyper,dispersion,optical,lenses,have,promising,applications,three,dimensional,imaging,which,allows,fast,spectral,tomography,without,mechanical,moving,parts,scanning,range,current,chromatic,limited,by,their,ability,recent,development,metasurfaces,provides,ideal,blocks,wavefront,manipulation,engineering,artificial,materials,sub,wavelength,scales,Hyper,dispersive,be,realized,utilizing,atoms,enhanced,compared,regular,diffractive,This,critical,increasing,depth,In,this,work,times,greater,than,that,THz,frequency,simultaneously,controlling,dependent,phase,group,delay,GD,approach,also,extended,other,improve,performance
AB值：
0.5484
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