Title :
Femtosecond lattice relaxation induced by inner-shell excitation
Author :
Sekikawa, T. ; Yamazaki, T. ; Nabekawa, Y. ; Watanabe, S.
Author_Institution :
Inst. for Solid State Phys., Univ. of Tokyo, Kashiwa, Japan
Abstract :
Summary form only given. We demonstrate the first application of high harmonics (HH) of a femtosecond Ti:sapphire laser to the femtosecond time-resolved luminescence spectroscopy of inner-shell excitation in an alkali-halide crystal CsCl. HH are shown to be the useful light source for the research on inner-shell excited states by observing the femtosecond luminescence induced by inner-shell excitation. The time dependence of the luminescence by inner-shell excitation reflects the relaxation dynamics of inner-shell excited states and clarifies the relaxation processes related to inner-shell excited states.
Keywords :
caesium compounds; electron-hole recombination; electron-phonon interactions; excited states; photoluminescence; time resolved spectra; Auger decay; Auger-free luminescence; CsCl; alkali-halide crystal; configuration coordinate model; electron-electron correlation; electron-phonon interaction; femtosecond Ti:sapphire laser; femtosecond lattice relaxation; femtosecond time-resolved luminescence spectroscopy; high harmonics; inner-shell excitation; inner-shell hole; lattice distortion; relaxation dynamics; valence-band electron; Laser ablation; Laser excitation; Lattices; Optical pulses; Plasma measurements; Plasma temperature; Probes; Pulse measurements; Pump lasers; Valves;
Conference_Titel :
Lasers and Electro-Optics, 2001. CLEO '01. Technical Digest. Summaries of papers presented at the Conference on
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-662-1
DOI :
10.1109/CLEO.2001.947417
