Title :
Ultrafast carrier dynamics in PbS quantum dots
Author :
Nootz, Gero ; Padilha, Lazaro A. ; Hagan, David J. ; Van Stryland, Eric W. ; Hoogland, Sjoerd ; Sargent, Edward H.
Author_Institution :
Coll. of Opt. & Photonics, Univ. of Central Florida, Orlando, FL
Abstract :
We report studies of multi-carrier dynamics in PbS quantum dots. Nanosecond recombination times are observed for the 1Sel-1S3/2 transition and evidence of direct radiative recombination from 1Pel-1P3/2 is observed on picoseconds time scales.
Keywords :
IV-VI semiconductors; carrier relaxation time; electron-hole recombination; high-speed optical techniques; infrared spectra; lead compounds; photoluminescence; semiconductor quantum dots; 1Sel-1S3/2 transition; PbS; PbS quantum dots; direct radiative recombination; multicarrier dynamics; nanosecond recombination; ultrafast carrier dynamics; Absorption; Delay effects; Nonlinear optics; Optical pumping; Probes; Propagation delay; Quantum computing; Quantum dots; Radiative recombination; Ultrafast optics; (190.4400) Nonlinear optics, materials; (300.6420) Nonlinear spectroscopy;
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
