Sensor based on an integrated optical microcavity

被引：194

作者：

Krioukov, E

Klunder, DJW

Driessen, A

Greve, J

Otto, C

机构：

[1] Univ Twente, Res Inst, MESA, Biophys Tech Grp,Dept Appl Phys, NL-7500 AE Enschede, Netherlands

[2] Univ Twente, Res Inst, MESA, Light Devices Grp,Dept Appl Phys, NL-7500 AE Enschede, Netherlands

[3] Univ Twente, Res Inst, Biophys Tech Grp, Dept Appl Phys, NL-7500 AE Enschede, Netherlands

来源：

OPTICS LETTERS | 2002年 / 27卷 / 07期

关键词：

Microcavity; (MC);

D O I：

10.1364/OL.27.000512

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A novel integrated optical sensor based on a cylindrical microcavity (MC) is proposed. A MC sustains so-called whispering-gallery modes (WGMs), in which the energy of the optical field can be efficiently stored. By monitoring the scattering intensity from the MC, one can detect minute changes in the refractive index of the WGM, for instance, as a result of analyte adsorption. Measurement of a change in refractive index of as little as 10(-1) is demonstrated experimentally. The MC-based integrated optical sensor may have a size of approximately 8 mum, and it is rugged and inexpensive. (C) 2002 Optical Society of America.

引用

页码：512 / 514

页数：3

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