Lasing from a circular Bragg nanocavity with an ultrasmall modal volume
Abstract
We demonstrate single-mode lasing at telecommunication wavelengths from a circular nanocavity employing a radial Bragg reflector. Ultrasmall modal volumes and submilliwatt pump thresholds level are observed for lasers with InGaAsP quantum well active membrane. The electromagnetic field is shown to be tightly confined within the 300 nm central pillar of the cavity. The quality factors of the resonator modal fields are estimated to be on the order of a few thousands.microcavity lasers; nanotechnology; distributed Bragg reflector lasers; optical pumping; indium compounds; gallium arsenide; gallium compounds; III-V semiconductors; semiconductor epitaxial layers; quantum well lasers; Q-factor; laser modes
Additional Information
© 2005 American Institute of Physics. (Received 22 March 2005; accepted 13 May 2005; published online 14 June 2005) The authors would like to thank Dr. Axel Scherer and Dr. Oskar Painter for providing access to their fabrication facilities. This work was supported by the National Science Foundation and DARPA.Attached Files
Published - SCHEapl05a.pdf
Accepted Version - 0505094.pdf
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Additional details
- Alternative title
- Lasing from a circular Bragg nanocavity with an ultra-small modal volume
- Eprint ID
- 2004
- Resolver ID
- CaltechAUTHORS:SCHEapl05a
- NSF
- Defense Advanced Research Projects Agency (DARPA)
- Created
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2006-03-01Created from EPrint's datestamp field
- Updated
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2021-11-08Created from EPrint's last_modified field