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Slow-light-enhanced single quantum dot emission in a unidirectional photonic crystal waveguide

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10 Author(s)
Dewhurst, S.J. ; Cambridge Research Laboratory, Toshiba Research Europe Limited, 208 Science Park, Milton Road, Cambridge, Cambridgeshire CB4 0GZ, United Kingdom ; Granados, D. ; Ellis, D.J.P. ; Bennett, A.J.
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We report the observation of a Purcell enhancement of the in-plane spontaneous emission rates of InAs self-assembled quantum dots coupled to a mode of a unidirectional photonic crystal waveguide fabricated in GaAs(001). Three-dimensional finite-difference time-domain simulations predict the existence of high quality-factor modes due to the slow light resonances of the waveguide. These modes have been observed experimentally with microphotoluminescence and produce enhanced in-plane emission when resonant with a quantum dot.

Published in:

Applied Physics Letters  (Volume:96 ,  Issue: 3 )

Date of Publication:

Jan 2010

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