Fabrication and Performance Evaluation of Pixelated Nano-wire Grid Polarizer

被引:19
|
作者
Gao, Shengkui [1 ]
Njuguna, Raphael [1 ]
Gruev, Viktor [1 ]
机构
[1] Washington Univ, Dept Comp Sci & Engn, St Louis, MO 63130 USA
关键词
Polarization; linear polarizer; nano-wire; lithography; DoFP;
D O I
10.1117/12.2023115
中图分类号
TP7 [遥感技术];
学科分类号
081102 ; 0816 ; 081602 ; 083002 ; 1404 ;
摘要
Metal-based nano-wire grid polarizer (NWGP) is widely used in division of focal plane (DoFP) imaging sensors to capture polarization information of the imaged environment. In this paper, we present a procedure for fabricating aluminum pixelated NWGP structures using electron beam lithography (EBL) and reactive ion etching (RIE). We evaluate optical performance of the NWGP structures in terms of different orientations (0 degrees, 45 degrees, 90 degrees, 135 degrees), line widths (50nm to 500nm), and spectral response (460nm to 625nm).
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页数:7
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