Full-field surface plasmon resonance sensor for high resolution refractive index measurement using common-path heterodyne interferometer

Lo, Yu-Lung; Chuang, Chih-Chung; Lin, Zheng-Wei

doi:10.1016/j.snb.2011.06.046

Cited by 3 publications

(2 citation statements)

References 17 publications

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“…Among these methods, the best resolution can be achieved with the SPR method, which reaches 10 -7 (RIU: refractive index unit) or less. Recently, with regard to full-field refractive index distribution measurement, several methods, such as the full-field optical coherence tomography (FF-OCT) [7][8], PSI+SPR [9][10][11], PSI+TIR [12][13], SPR+CPHI (common-path heterodyne interferometry) [14], and holographic interferometry [15], have been proposed. The FF-OCT method moves one arm of the interferometer to make two lights achieve coherence interference in order to obtain the best visibility for measuring the optical path difference, and then further calculate the refractive index.…”

Section: Introductionmentioning

confidence: 99%

Full-Field Refractive Index Variation Measurement Based on Phase Shift Interferometry and SPR Phase Detection

Lin

Chiu

2017

AMM

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We propose a new approach for determining the distribution of full-field refractive index based on the angle deviation method (ADM) with a surface plasmon resonance (SPR) sensor in phase detection. The inhomogeneous distribution of refractive index causes the variant deviation angles in the test light. SPR sensor is a sensitive angular sensor especially for phase detection. For the full–field phase measurement, we should use the four-step phase shift interferometry (PSI) to measure the phase shift profile of the test light after reflected from the SPR sensor. Thus the phase shift is caused by the variation of the refractive index. The approach can plot the full-field refractive index distribution in a short time and its resolution can be better than 2.2×10-8 (RIU).

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Section: Introductionmentioning

confidence: 99%

Full-Field Refractive Index Variation Measurement Based on Phase Shift Interferometry and SPR Phase Detection

Lin

Chiu

2017

AMM

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“…To realize a compact SPR system, we considered the miniaturization of an SPR sensor in this study. There are two methods of exciting SPR in sensors, namely, prism coupling 13,14) and grating coupling. [15][16][17] In both cases, the resonant conditions of the SPR should be detected by measuring the reflection of the incident light.…”

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confidence: 99%

Electrically detectable surface plasmon resonance sensor by combining a gold grating and a silicon photodiode

Ajiki

Kan

Matsumoto

et al. 2018

Appl. Phys. Express

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We propose an electrically detectable surface plasmon resonance sensor in a liquid consisting of a Au grating and a silicon p+n photodiode. The surface plasmon resonance (SPR) was excited on the Au grating, affecting the photovoltaic signal of the photodiode under the grating. The SPR signal was thus measured by obtaining the electrical signal without reflection measurements and a polarizer. The SPR conditions were clearly measured with our proposed sensor. It was verified that the SPR condition could also be measured without polarizing the incident light. The dielectric constant of water was determined using the proposed sensor.

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Reflection-induced linear polarization rotation and phase modulation between orthogonal waves for refractive index variation measurement

Twu

Wang

2016

Opt. Lett.

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An optical phase interrogation is proposed to study reflection-induced linear polarization rotation in a common-path homodyne interferometer. This optical methodology can also be applied to the measurement of the refractive index variation of a liquid solution. The performance of the refractive index sensing structure is discussed theoretically, and the experimental results demonstrated a very good ability based on the proposed schemes. Compared with a conventional common-path heterodyne interferometer, the proposed homodyne interferometer with only a single channel reduced the usage of optic elements.

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Full-field surface plasmon resonance sensor for high resolution refractive index measurement using common-path heterodyne interferometer

Cited by 3 publications

References 17 publications

Full-Field Refractive Index Variation Measurement Based on Phase Shift Interferometry and SPR Phase Detection

Full-Field Refractive Index Variation Measurement Based on Phase Shift Interferometry and SPR Phase Detection

Electrically detectable surface plasmon resonance sensor by combining a gold grating and a silicon photodiode

Reflection-induced linear polarization rotation and phase modulation between orthogonal waves for refractive index variation measurement

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