Large electrically induced transmission changes of GaAs/AlGaAs quantum-cascade structures

F. Eickemeyer; R. A. Kaindl; M. Woerner; T. Elsaesser; S. Barbieri; P. Kruck; C. Sirtori; J. Nagle

doi:10.1063/1.126598

Large electrically induced transmission changes of GaAs/AlGaAs quantum-cascade structures

F. Eickemeyer, R. A. Kaindl, M. Woerner, T. Elsaesser, S. Barbieri, P. Kruck, C. Sirtori, J. Nagle

Research output: Contribution to journal › Article › peer-review

36 Scopus citations

Abstract

Using a tunable midinfrared light source we study optical transmission changes of an electrically driven GaAs/AlGaAs quantum-cascade structure without resonator. For forward bias, we observe a transmission increase in the spectral range around the electroluminescence maximum which is due to resonant optical amplification. The observed transmission increase is enhanced up to 20-fold with respect to a bare active region by the internal field enhancement in the quantum-cascade structure and by interference effects in the midinfrared beam. Model calculations account quantitatively for this behavior.

Original language	English (US)
Pages (from-to)	3254-3256
Number of pages	3
Journal	Applied Physics Letters
Volume	76
Issue number	22
DOIs	https://doi.org/10.1063/1.126598
State	Published - May 29 2000
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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abstract = "Using a tunable midinfrared light source we study optical transmission changes of an electrically driven GaAs/AlGaAs quantum-cascade structure without resonator. For forward bias, we observe a transmission increase in the spectral range around the electroluminescence maximum which is due to resonant optical amplification. The observed transmission increase is enhanced up to 20-fold with respect to a bare active region by the internal field enhancement in the quantum-cascade structure and by interference effects in the midinfrared beam. Model calculations account quantitatively for this behavior.",

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AU - Eickemeyer, F.

AU - Kaindl, R. A.

AU - Woerner, M.

AU - Elsaesser, T.

AU - Barbieri, S.

AU - Kruck, P.

AU - Sirtori, C.

AU - Nagle, J.

PY - 2000/5/29

Y1 - 2000/5/29

N2 - Using a tunable midinfrared light source we study optical transmission changes of an electrically driven GaAs/AlGaAs quantum-cascade structure without resonator. For forward bias, we observe a transmission increase in the spectral range around the electroluminescence maximum which is due to resonant optical amplification. The observed transmission increase is enhanced up to 20-fold with respect to a bare active region by the internal field enhancement in the quantum-cascade structure and by interference effects in the midinfrared beam. Model calculations account quantitatively for this behavior.

AB - Using a tunable midinfrared light source we study optical transmission changes of an electrically driven GaAs/AlGaAs quantum-cascade structure without resonator. For forward bias, we observe a transmission increase in the spectral range around the electroluminescence maximum which is due to resonant optical amplification. The observed transmission increase is enhanced up to 20-fold with respect to a bare active region by the internal field enhancement in the quantum-cascade structure and by interference effects in the midinfrared beam. Model calculations account quantitatively for this behavior.

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JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 22

ER -

Large electrically induced transmission changes of GaAs/AlGaAs quantum-cascade structures

Abstract

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