Wideband coherent perfect absorber based on white-light cavity

被引：29

作者：

Kotlicki, Omer ^{[1
]}

Scheuer, Jacob ^{[1
]}

机构：

[1] Tel Aviv Univ, Sch Elect Engn, IL-69978 Tel Aviv, Israel

来源：

OPTICS LETTERS | 2014年 / 39卷 / 23期

关键词：

BROAD-BAND; ABSORPTION; LASER;

D O I：

10.1364/OL.39.006624

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a new concept for a broadband coherent perfect absorber (CPA), utilizing the properties of white-light cavities. The designed structure attains coherent absorption over a wide spectrum (40 nm), overcoming the single-frequency limitation of conventional CPAs. A closed form analytic description is presented, supplemented by finite difference time-domain simulations for Si-based devices, demonstrating flat, wide-band power absorption. A new integrated-optics-based pulse absorber/terminator and optical modulator based on these devices are proposed and analyzed. (C) 2014 Optical Society of America

引用

页码：6624 / 6627

页数：4

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