Abstract
In this work we present an optical refractive index sensor based on the Grating Light Reflection Spectroscopy (GLRS) method. The sensor consists of the finely spaced diffraction grating (sub micrometer region) that is in contact with the analyte (liquid or gas). Shining the polarized polychromatic light on the grating at the threshold angles of incidence and analysing the spectral response of the specular reflection we have observed steep changes of the reflection coefficient at certain wavelength values. We have shown that for the liquid analytes specular reflection spectra demonstrate double peak that can be used as one more parameter in the spectroscopic measurements. The detailed analysis of the spectral composition of the specular reflection illustrates ability of control of refractive index of analyte at least for two wavelengths at constant angle of incidence.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Photonics and Nanostructures - Fundamentals and Applications
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
