표면플라즈몬공명 센서를 이용한 염분농도 측정

초록

Sensors using surface plasmon resonance have very high sensitivity. So, there are various applications using this effect. In this study, we fabricate SPR sensor which can classify each density of a sample material. This sensor‟s form follows a Kretschmann configuration as attenuated total reflection method. Sputtered Au and Cr above fused silica substrate form a sensor chip part which is coupled with prism by matching oil. Sample liquid is NaCl solution and we measure SPR angles about the density variation.