Journal
APPLIED PHYSICS LETTERS
Volume 95, Issue 18, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3242352
Keywords
biexcitons; microcavities; micromechanical resonators; nanostructured materials; optical pumping; photoluminescence; radiative lifetimes; semiconductor quantum dots; silicon compounds; stimulated emission; time resolved spectra; two-photon processes; whispering gallery modes
Categories
Funding
- National Science Foundation [ECCS-0824186, ECCS-0846818, 0638209]
- Army Research Office [DAAD19-02-D-0001, DURIP 2008-02136]
- Directorate For Engineering
- Div Of Industrial Innovation & Partnersh [0638209] Funding Source: National Science Foundation
- Div Of Electrical, Commun & Cyber Sys
- Directorate For Engineering [0846818, 0824186] Funding Source: National Science Foundation
Ask authors/readers for more resources
Stable, frequency upconverted lasing of semiconductor nanocrystal quantum dots was demonstrated in silica microbeads under two-photon pumping conditions. Upon infrared excitation, the stimulated emission of the nanocrystal-doped microbeads exhibits sharp peaks at lambda similar to 610 nm with narrow line widths of < 1 nm. The lasing action has been attributed to the biexciton gain coupled to the whispering gallery modes in spherical cavities, as confirmed by time-resolved photoluminescence spectra. The lasing lifetime characterized in term of pulse numbers (similar to 10(6) pulses) was two orders of magnitude longer than that of the dye salt-based two-photon lasers.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available
Share Paper
