Siam Physics Congress 2016

Surface Plasmon Resonance Refractometers Based on Smart Phone Platforms

8 Jun 2016, 12:15

15m

Room J3

Oral presentaion Optics, Non-linear Optics, Laser Physics, Ultrafast Phenomena session II

Speaker

Ms Sawanya Boonchuay (Department of Physics, Faculty of Science and Technology, Thammasat University)

Description

Abstract

Herein we demonstrate the surface plasmon resonance (SPR) refractometers based on smart phone platforms. The optical element used in this system is a single disposable device, which is configures to use conditioned illumination and optical detection from smart phone cameras. The SPR sensing element is fabricated by a soda lime glass slide coated with 50 nm gold film covered by the custom made epoxy resin flow cell. The performance of the smart phone-base SPR refractometers was evaluated by detecting the ethanol/water solutions with different concentrations ranging from 0% to 40% with 10% interval. The results demonstrate that our smart phone-base SPR refractometers is feasible to measure the refractive index of liquid sample and offer an attractive possibility in many applications such as health and environment monitoring.

Keywords: Surface plasmon resonance, Sensor, Optical sensing, Refractometer, Mobile Phone