Automated laser IR spectropolarimeter for surface Mueller matrix measurements

Autor:	A. V. Shkirin, E. D. Protsenko, S. I. Tymper
Rok vydání:	2008
Předmět:	Materials science Observational error Co2 laser business.industry Photodetector Laser Polarization (waves) law.invention chemistry.chemical_compound Wavelength Optics chemistry law Polystyrene Mueller calculus business Instrumentation
Zdroj:	Instruments and Experimental Techniques. 51:268-274
ISSN:	1608-3180 0020-4412
DOI:	10.1134/s0020441208020206
Popis:	A laboratory prototype of a computer-controlled IR spectropolarimeter based on a tunable CO2 laser and two electro-optical polarization modulators has been designed, constructed, and tested. This instrument is capable of determining 12 of the total of 16 Mueller matrix elements for a sample surface in a spectral range of 9–11 μm. The measurement error for the normalized matrix elements does not exceed 0.02. The principles of optical arrangement and the algorithm of digital processing of the photodetector signal are considered. A procedure for the instrument calibration is discussed. The results of measurements of the Mueller matrix elements for reflection from the surface of polystyrene and water at a wavelength of 9.7 and 10.6 μm are presented.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::97e59aa28fef8d07e4c51839332d5f46 https://doi.org/10.1134/s0020441208020206 Zobrazit plný text záznamu Plný text ve formátu PDF