Title :
Coherently coupled exciton lasing
Author :
Jonathan R. Tischler;Elizabeth R. Young;Daniel G. Nocera;Vladimir Bulovic
Author_Institution :
Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, 02139, USA
fDate :
5/1/2009 12:00:00 AM
Abstract :
Lowest reported threshold organic semiconductor VCSEL (4.9 muJ/cm2) is achieved when excitons coherently couple, upon sub-picosecond non-resonant optical excitation. Temperature dependence of lambda/2 n device, absent in ges lambda/n cavities, indicates excitons undergo condensate-like phase transition.
Keywords :
"Excitons","Laser excitation","Temperature dependence","Optical pumping","Pump lasers","Organic semiconductors","Vertical cavity surface emitting lasers","Semiconductor lasers","Mirrors","Distributed Bragg reflectors"
Conference_Titel :
Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009. Conference on
Electronic_ISBN :
2160-9004
DOI :
10.1364/IQEC.2009.IThN4
