Title :
Gigahertz circular polarization oscillations in spin-polarized vertical-cavity surface-emitting lasers
Author :
Gerhardt, N.C. ; Li, M. ; Jaehme, H. ; Soldat, H. ; Hofmann, M.R. ; Ackemann, T.
Author_Institution :
Photonics & Terahertz Technol., Ruhr-Univ. Bochum, Bochum, Germany
Abstract :
We analyze ultrafast circular polarization oscillations in a commercial vertical-cavity surface-emitting laser after spin injection at room temperature. The circular polarization exhibits faster dynamics than the intensity and longer persistence than the spin relaxation time.
Keywords :
high-speed optical techniques; light polarisation; polarisation; spin; surface emitting lasers; gigahertz circular polarization oscillations; spin injection; spin polarized vertical cavity surface emitting lasers; temperature 293 K to 298 K; ultrafast circular polarization oscillation; Electron optics; Laser excitation; Laser modes; Laser theory; Optical polarization; Optical pumping; Surface emitting lasers; Temperature; Ultrafast optics; Vertical cavity surface emitting lasers;
Conference_Titel :
Lasers and Electro-Optics (CLEO) and Quantum Electronics and Laser Science Conference (QELS), 2010 Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-55752-890-2
Electronic_ISBN :
978-1-55752-890-2
