%0 Journal Article
%T High efficiency silicon nanodisk laser based on colloidal CdSe/ZnS QDs
%A Yao-Chen Wang
%A Chi-Tsu Yuan
%A Yi-Chun Yang
%A Meng-Chyi Wu
%J Nano Reviews
%D 2011
%I 
%R 10.3402/nano.v2i0.7275
%X Using colloidal CdSe/ZnS quantum dots in the submicron-sized silicon disk cavity, we have developed a visible wavelength nanodisk laser that operates under extremely low threshold power at room temperature. Time-resolved photoluminescence (PL) of QDs; nanodisk by e-beam lithography. Observation of lasing action at 594 nm wavelength for quantum dots on a nanodisk (750 nm in diameter) cavity and an ultra-low threshold of 2.8 ¦ÌW. From QD concentration dependence studies we achieved nearly sevenfold increase in spontaneous emission (SE) rate. We have achieved high efficient and high SE coupling rate in such a QD nanodisk laser.
%K nanodisk
%K quantum dot
%K nanolaser
%K spontaneous emission
%K whispering galley mode
%U http://www.nano-reviews.net/index.php/nano/article/view/7275/9814