Technique for Spectropolarimetry Based on Liquid Crystal Polarization Diffraction Grating

Autor: Hakob Chilingaryan, D. L. Hovhannisyan, Nune Hakobyan, H. L. Margaryan, D. K. Pokhsraryan, Vladimir M. Aroutiounian, Petros Gasparyan, Nelson V. Tabiryan, Tigran Sargsyan
Rok vydání: 2015
Předmět:
Zdroj: Molecular Crystals and Liquid Crystals. 615:63-69
ISSN: 1563-5287
1542-1406
Popis: Technique for real-time spectropolarimetry is developed. An embedded system for circular dichroism registration is designed based on National Instruments single board reconfigurable I/O platform for ultraviolet and visible spectroscopic needs. The basic functional unit of the proposed device is liquid crystal polarization diffraction grating. In order to expand the dynamic range the control of data accumulation time is provided. Two NMOS sensor linear arrays provide an excellent linearity of response.
Databáze: OpenAIRE