Title :
Size dependence of two photon absorption in CdSe nanoparticles
Author :
Dakovski, Georgi L. ; Kubera, Brian ; Shan, Jie
Author_Institution :
Dept. of Phys., Case Western Reserve Univ., Cleveland, OH
Abstract :
The two photon absorption coefficient at 1:55 eV of CdSe nanoparticles was determined from the induced transient bleaching of their first exciton transitions by a femtosecond white light probe. Dependence on particle size was investigated.
Keywords :
II-VI semiconductors; absorption coefficients; cadmium compounds; excitons; high-speed optical techniques; nanoparticles; optical saturable absorption; particle size; two-photon processes; CdSe; CdSe nanoparticles; electron volt energy 1.55 eV; exciton transitions; femtosecond white light probe; particle size; transient bleaching; two photon absorption; Absorption; Bleaching; Delay effects; Excitons; Nanoparticles; Nonlinear optics; Optical pumping; Probes; Spectroscopy; Ultrafast optics; (190.0190) Nonlinear Optics; (300.6420) Nonlinear Spectroscopy; (300.6530) Ultrafast Spectroscopy;
Conference_Titel :
Lasers and Electro-Optics, 2006 and 2006 Quantum Electronics and Laser Science Conference. CLEO/QELS 2006. Conference on
Conference_Location :
Long Beach, CA
Print_ISBN :
978-1-55752-813-1
Electronic_ISBN :
978-1-55752-813-1
DOI :
10.1109/CLEO.2006.4628476
