Room temperature and narrow intersubband electroluminescence from ZnCdSe/ZnCdMgSe quantum cascade laser structures

Yu Yao; Adrian Alfaro-Martinez; Kale J. Franz; William O. Charles; Aidong Shen; Maria C. Tamargo; Claire F. Gmachl

doi:10.1063/1.3614561

Room temperature and narrow intersubband electroluminescence from ZnCdSe/ZnCdMgSe quantum cascade laser structures

Yu Yao, Adrian Alfaro-Martinez, Kale J. Franz, William O. Charles, Aidong Shen, Maria C. Tamargo, Claire F. Gmachl

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

30 Scopus citations

Abstract

We report ZnCdSe/ZnCdMgSe Quantum Cascade structures with "two-phonon" and "bound-to-continuum" active region designs. The electroluminescence shows more than 3 times higher luminescence efficiency and 40 narrower linewidth (<30 meV) than previous reports. The measured turn-on voltage matches closely the calculated value, indicating the improved electron transport characteristics in these structures. A waveguide design suitable for mode confinement in this material system is also presented, which resulted in a structure with a single narrow electroluminescence peak for all temperatures from 80 to 300 K.

Original language	English (US)
Article number	041113
Journal	Applied Physics Letters
Volume	99
Issue number	4
DOIs	https://doi.org/10.1063/1.3614561
State	Published - Jul 25 2011

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.3614561

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title = "Room temperature and narrow intersubband electroluminescence from ZnCdSe/ZnCdMgSe quantum cascade laser structures",

abstract = "We report ZnCdSe/ZnCdMgSe Quantum Cascade structures with {"}two-phonon{"} and {"}bound-to-continuum{"} active region designs. The electroluminescence shows more than 3 times higher luminescence efficiency and 40 narrower linewidth (<30 meV) than previous reports. The measured turn-on voltage matches closely the calculated value, indicating the improved electron transport characteristics in these structures. A waveguide design suitable for mode confinement in this material system is also presented, which resulted in a structure with a single narrow electroluminescence peak for all temperatures from 80 to 300 K.",

author = "Yu Yao and Adrian Alfaro-Martinez and Franz, {Kale J.} and Charles, {William O.} and Aidong Shen and Tamargo, {Maria C.} and Gmachl, {Claire F.}",

note = "Funding Information: This work is supported in part by MIRTHE (NSF-ERC # EEC-0540832) and by CENSES (NSF # HRD-0833180). The authors would like to thank Prof. Jacob Khurgin for insightful discussions about the plasmonic waveguide structure.",

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doi = "10.1063/1.3614561",

language = "English (US)",

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TY - JOUR

T1 - Room temperature and narrow intersubband electroluminescence from ZnCdSe/ZnCdMgSe quantum cascade laser structures

AU - Yao, Yu

AU - Alfaro-Martinez, Adrian

AU - Franz, Kale J.

AU - Charles, William O.

AU - Shen, Aidong

AU - Tamargo, Maria C.

AU - Gmachl, Claire F.

N1 - Funding Information: This work is supported in part by MIRTHE (NSF-ERC # EEC-0540832) and by CENSES (NSF # HRD-0833180). The authors would like to thank Prof. Jacob Khurgin for insightful discussions about the plasmonic waveguide structure.

PY - 2011/7/25

Y1 - 2011/7/25

N2 - We report ZnCdSe/ZnCdMgSe Quantum Cascade structures with "two-phonon" and "bound-to-continuum" active region designs. The electroluminescence shows more than 3 times higher luminescence efficiency and 40 narrower linewidth (<30 meV) than previous reports. The measured turn-on voltage matches closely the calculated value, indicating the improved electron transport characteristics in these structures. A waveguide design suitable for mode confinement in this material system is also presented, which resulted in a structure with a single narrow electroluminescence peak for all temperatures from 80 to 300 K.

AB - We report ZnCdSe/ZnCdMgSe Quantum Cascade structures with "two-phonon" and "bound-to-continuum" active region designs. The electroluminescence shows more than 3 times higher luminescence efficiency and 40 narrower linewidth (<30 meV) than previous reports. The measured turn-on voltage matches closely the calculated value, indicating the improved electron transport characteristics in these structures. A waveguide design suitable for mode confinement in this material system is also presented, which resulted in a structure with a single narrow electroluminescence peak for all temperatures from 80 to 300 K.

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JF - Applied Physics Letters

IS - 4

M1 - 041113

ER -

Room temperature and narrow intersubband electroluminescence from ZnCdSe/ZnCdMgSe quantum cascade laser structures

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