Optimizing the Signal to Noise Ratio of Microcavity Sensors

被引：15

作者：

Cheema, M. Imran ^{[1
]}

Shi, Ce ^{[2
]}

Armani, Andrea Martin ^{[2
]}

Kirk, Andrew G. ^{[3
]}

机构：

[1] Natl Univ Comp & Emerging Sci, Dept Elect Engn, Lahore 54590, Pakistan

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

[3] McGill Univ, Dept Elect & Comp Engn, Montreal, PQ H3A 0G4, Canada

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2014年 / 26卷 / 20期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Microcavity sensors; signal to noise ratio; quality factor; QUALITY FACTOR; BIOCHEMICAL SENSORS; RESONATORS; SHIFT;

D O I：

10.1109/LPT.2014.2344857

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：

Optical microcavities provide a sensitive platform for biological and chemical sensing applications. Previous works have focused on optimizing the device performance by increasing the quality factor of the cavity. However, this approach overlooks the impact of the quality factor on the signal-to-noise ratio (SNR) of the sensor. Here, our purpose is to show the existence of optimum parameters, both theoretically and experimentally, for achieving maximum SNR in the microcavity sensors. Although toroidal cavities are used here, this letter is easily generalizable to any cavity geometry, enabling the performance optimization of a wide range of microcavity sensors.

引用

页码：2023 / 2026

页数：4

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