TITLE

Light amplification in semiconductor nanocrystals: Quantum rods versus quantum dots

AUTHOR(S)
Htoon, H.; Hollingworth, J. A.; Malko, A. V.; Dickerson, R.; Klimov, V. I.
PUB. DATE
June 2003
SOURCE
Applied Physics Letters;6/30/2003, Vol. 82 Issue 26, p4776
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We perform side-by-side comparison of optical gain properties of spherical and elongated nanocrystals (quantum dots and quantum rods, respectively). This comparison indicates that elongated nanoparticles provide several features beneficial for lasing applications, such as enhanced absorption cross sections (and hence reduced lasing threshold and improved photostability), increased optical gain lifetime, and extended optical gain spectral range through the use of transitions that involve both ground and excited electronic states.
ACCESSION #
10106475

 

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