DocumentCode :
3350418
Title :
Optical characterization of supercritical fluid of carbon by femtosecond pump/probe technique
Author :
Kudryashov, S.I. ; Kolyasnikov, O.V. ; Zorov, N.B.
Author_Institution :
Dept. of Chem., Moscow State Univ., Russia
fYear :
1992
fDate :
23-28 May 1992
Firstpage :
213
Abstract :
Summary form only given. Supercritical fluid (SCF) of a matter is usually produced under femtosecond laser ablation of metal and semiconductor materials. Optical characteristics of a SCF are gradually changed during adiabatic flow of the initially hot and pressurized fluid. In the case multilayered structure (air-SCF-condensed matter) occurs followed by optical interference phenomena (e.g. "Newton rings"). Rough estimations of optical constants exhibited insulating character of a SCF phase for a number of metal and semiconductor materials. We have calculated optical constants (refractive and attenuation indexes, n and k) of carbon SCF using "interference" approach\´ and experimental data on femtosecond pumping and probing ofa carbon target.
Keywords :
carbon; laser ablation; optical constants; refractive index; superfluidity; C; Newton rings; adiabatic flow; air-SCF-condensed matter; femtosecond pump/probe technique; multilayered structure; optical characterization; optical constants; optical interference phenomena; supercritical fluid; Image motion analysis; Interference; Laser ablation; Optical attenuators; Optical pumping; Optical refraction; Ring lasers; Semiconductor lasers; Semiconductor materials; Ultrafast optics;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Quantum Electronics and Laser Science Conference, 1999. QELS '99. Technical Digest. Summaries of Papers Presented at the
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-576-X
Type :
conf
DOI :
10.1109/QELS.1999.807553
Filename :
807553
Link To Document :
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