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Journal of the Optical Society of Korea

Journal of the Optical Society of Korea

| PUBLISHED BY THE OPTICAL SOCIETY OF KOREA

  • Vol. 12, Iss. 1 — Mar. 25, 2008
  • pp: 57–61

Superfluorescence from Magnetically Formed Quantum Dots: the Excitation Pulse-Width Dependence

Young-Dahl Jho, Jin-Ho Lee, Gary D. Sanders, Christopher J. Stanton, David H. Reitze, Junichiro Kono, and Alexey A. Belyanin  »View Author Affiliations


Journal of the Optical Society of Korea, Vol. 12, Issue 1, pp. 57-61 (2008)


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Abstract

We investigated the laser pulse-width dependence of dense plasmas confined within the magnetic length of <TEX>$In_{0.2}Ga_{0.8}As$</TEX>/GaAs multiple quantum wells under high magnetic fields up to 31 T. To fully fill the Landau levels of effectively zero-dimensional system, we used intense femtosecond (fs) laser pulses to create carrier densities near <TEX>$10^{13}/cm^2$</TEX>. The observed photoluminescence showed a characteristic of superfluorescence, above critical magnetic field when being excited by pulses shorter than coherence buildup time.

© 2008 Optical Society of Korea

OCIS Codes
(300.6280) Spectroscopy : Spectroscopy, fluorescence and luminescence
(320.7120) Ultrafast optics : Ultrafast phenomena

History
Original Manuscript: February 29, 2008
Revised Manuscript: March 18, 2008
Published: March 25, 2008

Citation
Young-Dahl Jho, Jin-Ho Lee, Gary D. Sanders, Christopher J. Stanton, David H. Reitze, Junichiro Kono, and Alexey A. Belyanin, "Superfluorescence from Magnetically Formed Quantum Dots: the Excitation Pulse-Width Dependence," J. Opt. Soc. Korea 12, 57-61 (2008)
http://www.opticsinfobase.org/josk/abstract.cfm?URI=josk-12-1-57


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