Quantum-dot cascade laser: Proposal for an ultralow-threshold semiconductor laser

Ned S. Wingreen, Charles A Stafford

Research output: Contribution to journalArticle

69 Citations (Scopus)

Abstract

We propose a quantum-dot version of the quantum-well cascade laser of Faist et al. The elimination of single phonon decays by the three-dimensional confinement implies a several order-of-magnitude reduction in the threshold current. The requirements on dot size (10-20 nm) and on dot density and uniformity [one coupled pair of dots per (200 nm 3) with 5% nonuniformity] are dose to current technology.

Original languageEnglish (US)
Pages (from-to)1170-1173
Number of pages4
JournalIEEE Journal of Quantum Electronics
Volume33
Issue number7
DOIs
StatePublished - Jul 1997
Externally publishedYes

Fingerprint

threshold currents
nonuniformity
Semiconductor quantum wells
Semiconductor quantum dots
Semiconductor lasers
proposals
elimination
cascades
semiconductor lasers
quantum dots
quantum wells
dosage
requirements
thresholds
Lasers
decay
lasers

Keywords

  • CW lasers
  • Proposals
  • Quantum-well lasers
  • Semiconductor lasers
  • Submillimeter wave lasers

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Physics and Astronomy (miscellaneous)

Cite this

Quantum-dot cascade laser : Proposal for an ultralow-threshold semiconductor laser. / Wingreen, Ned S.; Stafford, Charles A.

In: IEEE Journal of Quantum Electronics, Vol. 33, No. 7, 07.1997, p. 1170-1173.

Research output: Contribution to journalArticle

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