Measurement of refractive index variation of liquids by surface plasmon resonance and wavelength-modulated heterodyne interferometry

NCUIR > Engineering College > Graduate Institute of opto-Mechatronics > journal & Dissertation > Item 987654321/49949

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/49949

Title:	Measurement of refractive index variation of liquids by surface plasmon resonance and wavelength-modulated heterodyne interferometry
Authors:	Lee,JY;Tsai,SK
Contributors:	光機電研究所
Keywords:	PHASE MEASUREMENT;BIOSENSOR;SENSOR
Date:	2011
Issue Date:	2012-03-27 16:27:12 (UTC+8)
Publisher:	國立中央大學
Abstract:	In this study an alternative method based on surface plasmon resonance is proposed for in-situ monitoring of variation in the refractive index of a test sample A wavelength modulated light source and an unequal-path length optical configuration heterodyne interferometer are used to detect the phase difference change which can then be used to estimate the change in the refractive index of a test sample The experimental results demonstrate a phase stability of 0 02 The resolution power of the refractive Index is 1 5 x 10(-6) RIU This method has several advantages over previously used methods such as simple optical setup easier operation in real time and low cost (C) 2010 Elsevier BV All rights reserved
Relation:	OPTICS COMMUNICATIONS
Appears in Collections:	[Graduate Institute of opto-Mechatronics] journal & Dissertation

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