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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 12 — Jun. 11, 2007
  • pp: 7506–7514

Room temperature continuous wave operation and controlled spontaneous emission in ultrasmall photonic crystal nanolaser

Kengo Nozaki, Shota Kita, and Toshihiko Baba  »View Author Affiliations


Optics Express, Vol. 15, Issue 12, pp. 7506-7514 (2007)
http://dx.doi.org/10.1364/OE.15.007506


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Abstract

Photonic crystal slab enables us to form an ultrasmall laser cavity with a modal volume close to the diffraction limit of light. However, the thermal resistance of such nanolasers, as high as 106 K/W, has prevented continuous-wave operation at room temperature. The present paper reports on the first successful continuous-wave operation at room temperature for the smallest nanolaser reported to date, achieved through fabrication of a laser with a low threshold of 1.2 μW. Near-thresholdless lasing and spontaneous emission enhancement due to the Purcell effect are also demonstrated in a moderately low Q nanolaser, both of which are well explained by a detailed rate equation analysis.

© 2007 Optical Society of America

OCIS Codes
(140.5960) Lasers and laser optics : Semiconductor lasers
(230.3990) Optical devices : Micro-optical devices

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: April 19, 2007
Revised Manuscript: May 28, 2007
Manuscript Accepted: May 28, 2007
Published: June 4, 2007

Citation
Kengo Nozaki, Shota Kita, and Toshihiko Baba, "Room temperature continuous wave operation and controlled spontaneous emission in ultrasmall photonic crystal nanolaser," Opt. Express 15, 7506-7514 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-12-7506


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