High-sensitivity small-angle sensor based on surface plasmon resonance technology and heterodyne interferometry

2006 ◽  
Vol 45 (26) ◽  
pp. 6702 ◽  
Author(s):  
Shinn-Fwu Wang ◽  
Ming-Hung Chiu ◽  
Chih-Wen Lai ◽  
Rong-Seng Chang
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Small Angle ◽  
High Sensitivity ◽  
Heterodyne Interferometry ◽  
Angle Sensor

Polyhedron Biosensor Based on the Surface Plasmon Resonance Technology in Heterodyne Interferometry

2013 ◽  
Vol 716 ◽  
pp. 510-515
Author(s):  
Shinn Fwu Wang ◽  
Hao Ma ◽  
Fu Hsi Kao ◽  
An Li Liu
Keyword(s):  
Refractive Index ◽  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
High Sensitivity ◽  
Heterodyne Interferometry ◽  
Optical Source ◽  
High Measurement ◽  
Time Test ◽  
Easy Operation

In this article, a polyhedron biosensor based on the surface plasmon resonance technology in heterodyne interferometry is proposed. The sensor is designed as the polygon prism that is made of BK-7 glass with the refractive index of 1.51509. As a heterodyne optical source is launched into the biosensor, the phase difference between s-and p-polarization components can be obtained. The related parameters of the tested medium can be achieved after some calculations. The best resolution of the sensor can reach 5.5×10-7 refractive index unit (RIU). The polyhedron biosensor has some merits, e.g., a simple optical setup, easy operation, high measurement accuracy, high resolution, high sensitivity, and in real-time test, etc.

Z-Axis Displacement Sensor Based on Total-Internal Reflection and Surface Plasmon Resonance in Heterodyne Interferometry

2013 ◽  
Vol 746 ◽  
pp. 564-569
Author(s):  
Shinn Fwu Wang ◽  
Ting Huan Chen ◽  
Pei Cheng Ke ◽  
Yi Chu ◽  
Yu Pin Liao ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Total Internal Reflection ◽  
High Sensitivity ◽  
Side Surface ◽  
Internal Reflection ◽  
Displacement Sensor ◽  
Small Displacement ◽  
Heterodyne Interferometry

In this paper, a z-axis displacement sensor based on Total-Internal Reflection and Surface Plasmon Resonance in heterodyne interferometry is proposed. The sensing unit is composed of a parallelogram prism, i.e. elongated prism, and a displacement probe. One side surface of the elongated prism was coated with a 2 nm Ti-film and a 45.5 nm Au-film, but the other side surface of that were not coated with metal films. The z-axis displacement sensor is with high sensitivity and resolution due to multiple attenuated total reflections and total internal reflections effects. Besides, we can obtain the results of the experiment in a distant place by uses of the USB data acquisition card (DAQ card) and a ZigBee module. In fact, the displacement resolution of the z-axis displacement meter can reach sub-nanometer by numerical simulation. The small-displacement sensor has some merits, e.g., in real-time test, easy operation, high measurement accuracy, high resolution, etc.

Experimental Evaluation of a Small-Displacement Sensing System Based on the Surface Plasmon Resonance Technology in Heterodyne Interferometry

2013 ◽  
Vol 479-480 ◽  
pp. 682-686
Author(s):  
Shinn Fwu Wang ◽  
Chi Tun Chen ◽  
Fu Hsi Kao ◽  
Yi Chu ◽  
Shyh Rong Lay ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
High Sensitivity ◽  
Attenuated Total Reflection ◽  
Displacement Sensor ◽  
Small Displacement ◽  
Heterodyne Interferometry ◽  
Sensing System ◽  
Data Acquisition Card

In this article, a small-displacement sensing system based on the surface plasmon resonance technology in heterodyne interferometry is proposed and evaluated. The basic sensing unit is composed of a prism assembly and a displacement probe. The prism assembly consists of a halfwave (λ/2) plate, two right-angle prisms and two rotation stages. The small-displacement sensor is with high sensitivity and resolution due to the attenuated total reflection effect in heterodyne interferometry. Besides, we can obtain the results of the experiment in a distant place by uses of the USB data acquisition card (DAQ card) and a ZigBee module. It can be found that the displacement resolution of the small-displacement sensor can reach 0.155nm by numerical simulation. The small-displacement sensor has some merits, e.g., easy operation, high measurement accuracy, high resolution and rapid measurement, etc.

High Sensitivity of Phase-based Surface Plasmon Resonance in Nano-cylinder Array

PIERS Online ◽  
2008 ◽  
Vol 4 (7) ◽  
pp. 746-750 ◽  
Author(s):  
Bing-Hung Chen ◽  
Yih-Chau Wang ◽  
Jia-Hng Lin
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
High Sensitivity ◽  
Cylinder Array

scholarly journals Reusable TiN Substrate for Surface Plasmon Resonance Heterodyne Phase Interrogation Sensor

Nanomaterials ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 1325 ◽  
Author(s):  
Ru-Jing Sun ◽  
Hung Ji Huang ◽  
Chien-Nan Hsiao ◽  
Yu-Wei Lin ◽  
Bo-Huei Liao ◽  
...  
Keyword(s):  
Refractive Index ◽  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
High Sensitivity ◽  
Nanorod Array ◽  
Glass Substrates ◽  
Sensing Applications ◽  
Bulk Charge ◽  
Phase Interrogation

A TiN-based substrate with high reusability presented high-sensitivity refractive index measurements in a home-built surface plasmon resonance (SPR) heterodyne phase interrogation system. TiN layers with and without additional inclined-deposited TiN (i-TiN) layers on glass substrates reached high bulk charge carrier densities of 1.28 × 1022 and 1.91 × 1022 cm−3, respectively. The additional 1.4 nm i-TiN layer of the nanorod array presented a detection limit of 6.1 × 10−7 RIU and was higher than that of the 46 nm TiN layer at 1.2 × 10−6 RIU when measuring the refractive index of a glucose solution. Furthermore, the long-term durability of the TiN-based substrate demonstrated by multiple processing experiments presented a high potential for various practical sensing applications.

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