TITLE

Whispering gallery resonances in semiconductor micropillars

AUTHOR(S)
Astratov, V. N.; Yang, S.; Lam, S.; Jones, B. D.; Sanvitto, D.; Whittaker, D. M.; Fox, A. M.; Skolnick, M. S.; Tahraoui, A.; Fry, P. W.; Hopkinson, M.
PUB. DATE
August 2007
SOURCE
Applied Physics Letters;8/13/2007, Vol. 91 Issue 7, p071115
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
In this letter, the authors observe high quality (Q up to 20 000) whispering gallery modes (WGMs) with small modal volumes V∼0.3 μm3 in 4–5 μm Al(Ga)As/GaAs micropillars by employing an experimental geometry in which both excitation and collection of emission are in a direction normal to the sidewalls of the pillars. They show that WGMs provide at least two times larger values of the figure of merit for strong coupling applications Q/V compared to “photonic dot” states in pillars with comparable size.
ACCESSION #
26370008

 

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