Quantum cascade lasers with double metal-semiconductor waveguide resonators

Karl Unterrainer, Raffaele Colombelli, Claire F. Gmachl, Federico Capasso, Harold Y. Hwang, A. Michael Sergent, Deborah L. Sivco, Alfred Y. Cho

Research output: Contribution to journalArticle

94 Citations (Scopus)

Abstract

Quantum cascade (QC) lasers with double metal-semiconductor waveguide resonators are reported for operating wavelengths of 19, 21, and 24 μm. The waveguides are based on surface-plasmon modes confined at the metal-semiconductor interfaces on both sides of the active region/injector stack and are not restricted by a cutoff wavelength for the TM polarized intersubband radiation. The double metal-semiconductor resonator devices are fabricated using an epilayer transfer process. Optical confinement factors close to 1 are obtained, with low waveguide losses. The performance of the devices is compared with that of QC lasers based on single-sided surface-plasmon waveguides. The concept of QC laser with double metal-semiconductor waveguide is applicable to a much wider wavelength range.

Original languageEnglish (US)
Pages (from-to)3060-3062
Number of pages3
JournalApplied Physics Letters
Volume80
Issue number17
DOIs
StatePublished - Apr 29 2002
Externally publishedYes

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quantum cascade lasers
resonators
waveguides
metals
wavelengths
polarized radiation
injectors
cut-off

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Unterrainer, K., Colombelli, R., Gmachl, C. F., Capasso, F., Hwang, H. Y., Sergent, A. M., ... Cho, A. Y. (2002). Quantum cascade lasers with double metal-semiconductor waveguide resonators. Applied Physics Letters, 80(17), 3060-3062. https://doi.org/10.1063/1.1469657
Unterrainer, Karl ; Colombelli, Raffaele ; Gmachl, Claire F. ; Capasso, Federico ; Hwang, Harold Y. ; Sergent, A. Michael ; Sivco, Deborah L. ; Cho, Alfred Y. / Quantum cascade lasers with double metal-semiconductor waveguide resonators. In: Applied Physics Letters. 2002 ; Vol. 80, No. 17. pp. 3060-3062.
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Unterrainer, K, Colombelli, R, Gmachl, CF, Capasso, F, Hwang, HY, Sergent, AM, Sivco, DL & Cho, AY 2002, 'Quantum cascade lasers with double metal-semiconductor waveguide resonators', Applied Physics Letters, vol. 80, no. 17, pp. 3060-3062. https://doi.org/10.1063/1.1469657

Quantum cascade lasers with double metal-semiconductor waveguide resonators. / Unterrainer, Karl; Colombelli, Raffaele; Gmachl, Claire F.; Capasso, Federico; Hwang, Harold Y.; Sergent, A. Michael; Sivco, Deborah L.; Cho, Alfred Y.

In: Applied Physics Letters, Vol. 80, No. 17, 29.04.2002, p. 3060-3062.

Research output: Contribution to journalArticle

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AU - Cho, Alfred Y.

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Unterrainer K, Colombelli R, Gmachl CF, Capasso F, Hwang HY, Sergent AM et al. Quantum cascade lasers with double metal-semiconductor waveguide resonators. Applied Physics Letters. 2002 Apr 29;80(17):3060-3062. https://doi.org/10.1063/1.1469657