Share Email Print
cover

Proceedings Paper

Optical properties of CO2 in the vicinity of critical point
Author(s): Victor N. Bagratashvili; Kirill P. Bestemyanov; Vyacheslav M. Gordienko; A. N. Konovalov; Vladimir K. Popov; Svetlana I. Tsypina
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Optical properties of carbon dioxide in the vicinity of its critical point were studied. Amplitude-frequency characteristics of radiation backscattered in CO2 have been studied using laser Doppler velocimeter based on highly stabilized Nd:YAG3+ chip-laser. Significant (up to 10 times) narrowing of backscattered radiation spectrum and increasing of its amplitude (up to 100 times) in the vicinity of critical point were detected and analyzed. Nonlinear temperature dependence of reflection from glass- CO2 interface was observed. Intrinsic anomaly of light reflection of critical media was revealed. Transmission spectrum of cell with critical CO2 was measured in 0.35- 1 micrometers spectral range. Formula for integral spectrum of light scattered in near-critical medium was obtained.

Paper Details

Date Published: 31 May 2002
PDF: 8 pages
Proc. SPIE 4705, Saratov Fall Meeting 2001: Coherent Optics of Ordered and Random Media II, (31 May 2002); doi: 10.1117/12.469001
Show Author Affiliations
Victor N. Bagratashvili, Institute of Laser and Information Technologies (Russia)
Kirill P. Bestemyanov, International Laser Ctr./M.V. Lomonosov Mocow State Univ. (Russia)
Vyacheslav M. Gordienko, International Laser Ctr./M.V. Lomonosov Moscow State Univ. (Russia)
A. N. Konovalov, Institute of Laser and Information Technologies (Russia)
Vladimir K. Popov, Institute of Laser and Information Technologies (Russia)
Svetlana I. Tsypina, Institute of Laser and Information Technologies (Russia)


Published in SPIE Proceedings Vol. 4705:
Saratov Fall Meeting 2001: Coherent Optics of Ordered and Random Media II

© SPIE. Terms of Use
Back to Top