Observation of a laserlike transition in a microcavity exciton polariton system

Stanley K H Pau, Hui Cao, Joseph Jacobson, Gunnar Björk, Yoshihisa Yamamoto, Atac Imamoǧlu

Research output: Contribution to journalArticle

80 Citations (Scopus)

Abstract

We present experimental evidence of spontaneous buildup of coherent exciton polariton population in a microcavity, i.e., an exciton polariton laser. The laser phase transition was confirmed by the increased differential quantum efficiency and decreased linewidth of the lasing polariton mode due to onset of final-state stimulations and the decreased differential quantum efficiency of a nonlasing polariton due to onset of gain clamping at threshold. The exciton polariton laser is distinctly different from an optical laser because of its density-dependent scattering mechanism. The rate equations, taking into account phonon-assisted polariton emission and the polariton-reservoir exciton scattering rate, explain the measurement results well.

Original languageEnglish (US)
JournalPhysical Review A
Volume54
Issue number3
StatePublished - Sep 1996
Externally publishedYes

Fingerprint

polaritons
excitons
lasers
quantum efficiency
stimulation
scattering
lasing
thresholds

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Atomic and Molecular Physics, and Optics

Cite this

Pau, S. K. H., Cao, H., Jacobson, J., Björk, G., Yamamoto, Y., & Imamoǧlu, A. (1996). Observation of a laserlike transition in a microcavity exciton polariton system. Physical Review A, 54(3).

Observation of a laserlike transition in a microcavity exciton polariton system. / Pau, Stanley K H; Cao, Hui; Jacobson, Joseph; Björk, Gunnar; Yamamoto, Yoshihisa; Imamoǧlu, Atac.

In: Physical Review A, Vol. 54, No. 3, 09.1996.

Research output: Contribution to journalArticle

Pau, SKH, Cao, H, Jacobson, J, Björk, G, Yamamoto, Y & Imamoǧlu, A 1996, 'Observation of a laserlike transition in a microcavity exciton polariton system', Physical Review A, vol. 54, no. 3.
Pau SKH, Cao H, Jacobson J, Björk G, Yamamoto Y, Imamoǧlu A. Observation of a laserlike transition in a microcavity exciton polariton system. Physical Review A. 1996 Sep;54(3).
Pau, Stanley K H ; Cao, Hui ; Jacobson, Joseph ; Björk, Gunnar ; Yamamoto, Yoshihisa ; Imamoǧlu, Atac. / Observation of a laserlike transition in a microcavity exciton polariton system. In: Physical Review A. 1996 ; Vol. 54, No. 3.
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