Tunable sensitivity phase detection of transmitted-type dual-channel guided-mode resonance sensor based on phase-shift interferometry

Applied Optics
Wen-Kai KuoHsin-Her Yu

Abstract

This paper reports on a transmitted-type dual-channel guided-mode resonance (GMR) sensor system that uses phase-shifting interferometry (PSI) to achieve tunable phase detection sensitivity. Five interference images are captured for the PSI phase calculation within ∼15  s by using a liquid crystal retarder and a USB web camera. The GMR sensor structure is formed by a nanoimprinting process, and the dual-channel sensor device structure for molding is fabricated using a 3D printer. By changing the rotation angle of the analyzer in front of the camera in the PSI system, the sensor detection sensitivity can be tuned. The proposed system may achieve high throughput as well as high sensitivity. The experimental results show that an optimal detection sensitivity of 6.82×10(-4)  RIU can be achieved.

References

Sep 29, 2004·Journal of Biomolecular Screening·Brian T CunninghamLance Laing
May 10, 1993·Applied Optics·S S Wang, R Magnusson
May 10, 1995·Applied Optics·S S Wang, R Magnusson

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Citations

Aug 10, 2017·Scientific Reports·Pankaj K SahooJoby Joseph
Jun 5, 2019·Nanomaterials·Yi ZhouXiang Wu
Jun 9, 2020·Light, Science & Applications·Isabel BarthThomas F Krauss
Jun 3, 2021·Light, Science & Applications·Isabel BarthThomas F Krauss

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