Title :
Probing laser-induced structural changes using coherent phonon detection
Author :
Stoica, Vladimir A. ; Reis, David A. ; Clarke, Roy
Author_Institution :
Dept. of Phys., Michigan Univ., Ann Arbor, MI
Abstract :
We find the onset of laser-induced InSb thermal dissociation using coherent optical phonon detection under asynchronous optical sampling. Additionally, laser-induced annealing of Sb thin films is monitored in photoacoustic measurements of sound velocity in real-time.
Keywords :
III-V semiconductors; acoustic wave velocity measurement; dissociation; indium compounds; laser beam annealing; laser beam effects; phonons; photoacoustic effect; InSb; asynchronous optical sampling; coherent phonon detection; laser-induced annealing; laser-induced structural changes; laser-induced thermal dissociation; photoacoustic measurement; sound velocity; thin films; Laser excitation; Laser theory; Laser transitions; Optical films; Optical pumping; Optical surface waves; Phonons; Pump lasers; Reflectivity; Ultrafast optics; (300.6500) Spectroscopy, time-resolved; (320.2250) Femtosecond phenomena; (320.5390) Picosecond phenomena; (320.7100) Ultrafast measurements;
Conference_Titel :
Lasers and Electro-Optics, 2008 and 2008 Conference on Quantum Electronics and Laser Science. CLEO/QELS 2008. Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-55752-859-9
