Title :
Vibrational and rotational stimulated Raman scattering by femtosecond laser pulses in H/sub 2/, D/sub 2/, HD, and CH/sub 4/ gases
Author :
Krylov, V. ; Rebane, A. ; Erni, Daniel ; Ollikainenand, O. ; Wild, U. ; Bespalov, V. ; Staselko, D.
Author_Institution :
Phys. Chem. Lab., Swiss Federal Inst. of Technol., Zurich, Switzerland
Abstract :
Summary form only given. In this paper we study stimulated Raman scattering (SRS) excited by focusing 200 fs duration, 0.6-mJ energy, and 1-kHz repetition rate Ti:sapphire laser pulses at 780 nm and their second-harmonic pulses at 390 nm in a pressurized gas cell. We present results on the spectral and temporal properties of the different Raman components as well as on the wavelength-conversion efficiency in dependence of the polarization of the pump in different gases such as H/sub 2/, D/sub 2/, HD, and CH/sub 4/. A schematic of our experimental setup is shown. To optimize the efficiency of SRS.
Keywords :
high-speed optical techniques; laser transitions; light polarisation; optical focusing; optical harmonic generation; optical pumping; rotational states; sapphire; solid lasers; stimulated Raman scattering; titanium; vibrational states; 200 fs; 390 nm; 780 nm; CH/sub 4/ gases; D/sub 2/; H/sub 2/; HD; Raman components; SRS efficiency optimisation; femtosecond laser pulses; focusing fs duration; kHz repetition rate Ti:sapphire laser pulses; polarization; pressurized gas cell; rotational stimulated Raman scattering; second-harmonic pulses; spectral properties; stimulated Raman scattering; temporal properties; vibrational stimulated Raman scattering; wavelength-conversion efficiency; Brillouin scattering; Chemical lasers; Gas lasers; Gases; Hydrogen; Lenses; Optical pulses; Polarization; Pulse amplifiers; Raman scattering;
Conference_Titel :
Lasers and Electro-Optics, 1996. CLEO '96., Summaries of papers presented at the Conference on
Conference_Location :
Anaheim, CA, USA
Print_ISBN :
1-55752-443-2
