DocumentCode
521520
Title
Very low threshold of amplified spontaneous emission in II–VI colloidal quantum dots at low exciton number
Author
Dang, Cuong ; Nurmikko, A.V.
Author_Institution
Dept. of Phys., Brown Univ., Providence, RI, USA
fYear
2010
fDate
16-21 May 2010
Firstpage
1
Lastpage
2
Abstract
We demonstrate amplified spontaneous emission from close-packed, II-VI quantum dot (QD) thin films at record low threshold excitation energy corresponding to ~1.2 effective exciton number per QD. Photon statistics from single QDs illustrates the role of excitonic interactions at excitation conditions corresponding to lasing threshold.
Keywords
III-VI semiconductors; semiconductor quantum dots; spontaneous emission; superradiance; II-VI colloidal quantum dots; amplified spontaneous emission; excitation energy; excitonic interactions; lasing threshold; low exciton number; photon statistics; quantum dot thin films; very low threshold; Excitons; Nanocrystals; Optical films; Optical pulses; Optical pumping; Quantum dots; Spontaneous emission; Statistics; Stimulated emission; Temperature;
fLanguage
English
Publisher
ieee
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
Type
conf
Filename
5501202
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