TY - GEN
T1 - Red, green, and blue laser action in solid colloidal quantum dot films
AU - Dang, Cuong
AU - Roh, Kwangdong
AU - Lee, Joonhee
AU - Breen, Craig
AU - Steckel, Jonathan S.
AU - Coe-Sullivan, Seth
AU - Nurmikko, Arto
PY - 2012
Y1 - 2012
N2 - We report on wavelength-variable lasing from optical gain media composed of colloidal quantum-dots (CQD) thin films across the visible spectrum. Exploiting single exciton gain enables amplified spontaneous emission (ASE) and vertical cavity lasing at very low optical pump thresholds. The average number of exciton per CQD at the ASE threshold is <N> 0.8, which significantly reduces losses from enhanced nonradiative multiexciton Auger recombination in nanometer sized semiconductor particle, enabling quasi-continuous-wave CQD laser performance in densely packed nanocomposites.
AB - We report on wavelength-variable lasing from optical gain media composed of colloidal quantum-dots (CQD) thin films across the visible spectrum. Exploiting single exciton gain enables amplified spontaneous emission (ASE) and vertical cavity lasing at very low optical pump thresholds. The average number of exciton per CQD at the ASE threshold is <N> 0.8, which significantly reduces losses from enhanced nonradiative multiexciton Auger recombination in nanometer sized semiconductor particle, enabling quasi-continuous-wave CQD laser performance in densely packed nanocomposites.
KW - Quantum dot
KW - Red green blue laser
KW - Single exciton gain
KW - Vertical cavity laser
UR - http://www.scopus.com/inward/record.url?scp=84869183798&partnerID=8YFLogxK
U2 - 10.1109/NANO.2012.6322195
DO - 10.1109/NANO.2012.6322195
M3 - Conference contribution
AN - SCOPUS:84869183798
SN - 9781467321983
T3 - Proceedings of the IEEE Conference on Nanotechnology
BT - 2012 12th IEEE International Conference on Nanotechnology, NANO 2012
T2 - 2012 12th IEEE International Conference on Nanotechnology, NANO 2012
Y2 - 20 August 2012 through 23 August 2012
ER -