Evanescent Wave Coupled Spectroscopic Sensing Using Smartphone

被引：45

作者：

Dutta, Sibasish ^{[1
]}

Choudhury, Amarjyoti ^{[1
]}

Nath, Pabitra ^{[1
]}

机构：

[1] Tezpur Univ, Appl Photon & Nanophoton Lab, Dept Phys, Tezpur 784028, India

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2014年 / 26卷 / 06期

关键词：

Smartphone; evanescent wave coupling; spectroscopic sensor; absorption spectroscopy; SENSOR;

D O I：

10.1109/LPT.2013.2297700

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This letter demonstrates a technique that utilizes the camera of a smartphone for evanescent wave coupled spectroscopic sensing. Using simple optical components, the camera of the smartphone is converted into a highly resolved spectrometer (0.305 nm per pixel), and using a right-angled glass prism, the evanescent field of the internally reflected light signal from a broadband optical source is allowed to interact with the external medium. The primary advantages of the proposed sensing technique are its compactness, portability, and cost-efficiency.

引用

页码：568 / 570

页数：3

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