Title :
Generation of coherent phonon oscillations in PbI/sub 2/ thin films
Author :
Hirobe, Y. ; Ogawa, N. ; Kunigita, H. ; Ema, K. ; Ban, T. ; Kondo, T.
Author_Institution :
Dept. of Phys., Sophia Univ., Tokyo, Japan
Abstract :
We performed pump-probe transient absorption measurements around the exciton resonance in PbI/sub 2/ thin films. Coherent phonon oscillations corresponding to A/sub 1/ lattice mode were clearly observed at the excitation below the exciton resonance.
Keywords :
excitons; high-speed optical techniques; lead compounds; light coherence; optical films; optical pumping; phonons; resonant states; time resolved spectroscopy; transparency; A/sub 1/ lattice mode; PbI/sub 2/; PbI/sub 2/ thin film; coherent phonon oscillations; coherent phonon oscillations generation; exciton resonance; pump-probe transient absorption measurements; Excitons; Optical films; Optical materials; Optical pulses; Optical pumping; Phonons; Resonance; Semiconductor materials; Transistors; Ultrafast optics;
Conference_Titel :
Nonlinear Optics: Materials, Fundamentals, and Applications, 2000. Technical Digest
Conference_Location :
Kaua´i-Lihue, HI, USA
Print_ISBN :
1-55752-646-X
DOI :
10.1109/NLO.2000.883600
