Ultraviolet light detection using an optical microcavity

被引：9

作者：

Harker, Audrey ^{[1
]}

Mehrabani, Simin ^{[1
]}

Armani, Andrea M. ^{[1
,2
]}

机构：

[1] Univ So Calif, Mork Family Dept Chem Engn & Mat Sci, Los Angeles, CA 90089 USA

[2] Univ So Calif, Ming Hsieh Dept Elect Engn Electrophys, Los Angeles, CA 90089 USA

来源：

OPTICS LETTERS | 2013年 / 38卷 / 17期

基金：

美国国家科学基金会;

关键词：

POLYMER; SENSOR; SYSTEM; FILMS; DYE;

D O I：

10.1364/OL.38.003422

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Ultraviolet (UV) light exposure is connected to both physical and psychological diseases. As such, there is significant interest in developing sensors that can detect UV light in the mW/cm(2) intensity range with a high signal-to-noise ratio. In this Letter, we demonstrate a UV sensor based on a silica integrated optical microcavity that has a linear operating response in both the forward and backward directions from 14 to 53 mW/cm(2). The sensor response agrees with the developed predictive theory based on a thermodynamic model. Additionally, the signal-to-noise ratio is above 100 at physiologically relevant intensity levels. (C) 2013 Optical Society of America

引用

页码：3422 / 3425

页数：4

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