近赤外域を対象としたプラズモン光検出型分光法

抄録

This research is a near-infrared (NIR) spectroscopy system using a Schottky photodetector enhanced by surface plasmon resonance (SPR). The photodetector offers detection of wavelength-specific plasmon resonance as electric signal with Schottky barrier. We made low noise measurements and automated spectroscopic control. We integrated the spectroscopic device and measurement circuit to perform spectroscopy covering the near infrared range in low noise. We presented a development method to create a responsivity matrix for the spectroscopy signal conversion Since this matrix has characteristics of irradiated light, it enables spectroscopy. Measurements showed wavelengths can be discriminated for simultaneously irradiating two wavelengths using the proposed system.