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A hybrid plasmonic waveguide terahertz quantum cascade laser

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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A hybrid plasmonic waveguide terahertz quantum cascade laser. / Degl'Innocenti, Riccardo; Shah, Yash D.; Wallis, Robert et al.
In: Applied Physics Letters, Vol. 106, No. 8, 082101, 23.02.2015.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Degl'Innocenti, R, Shah, YD, Wallis, R, Klimont, A, Ren, Y, Jessop, DS, Beere, HE & Ritchie, DA 2015, 'A hybrid plasmonic waveguide terahertz quantum cascade laser', Applied Physics Letters, vol. 106, no. 8, 082101. https://doi.org/10.1063/1.4913307

APA

Degl'Innocenti, R., Shah, Y. D., Wallis, R., Klimont, A., Ren, Y., Jessop, D. S., Beere, H. E., & Ritchie, D. A. (2015). A hybrid plasmonic waveguide terahertz quantum cascade laser. Applied Physics Letters, 106(8), Article 082101. https://doi.org/10.1063/1.4913307

Vancouver

Degl'Innocenti R, Shah YD, Wallis R, Klimont A, Ren Y, Jessop DS et al. A hybrid plasmonic waveguide terahertz quantum cascade laser. Applied Physics Letters. 2015 Feb 23;106(8):082101. doi: 10.1063/1.4913307

Author

Degl'Innocenti, Riccardo ; Shah, Yash D. ; Wallis, Robert et al. / A hybrid plasmonic waveguide terahertz quantum cascade laser. In: Applied Physics Letters. 2015 ; Vol. 106, No. 8.

Bibtex

@article{cd5369ec40e24ba6a29579846f76bc22,
title = "A hybrid plasmonic waveguide terahertz quantum cascade laser",
abstract = "We present the realization of a quantum cascade laser emitting at around 2.85 THz, based on a hybrid plasmonic waveguide with a low refractive index dielectric cladding. This hybrid waveguide design allows the performance of a double-metal waveguide to be retained, while improving the emission far-field. A set of lasers based on the same active region material were fabricated with different metal layer thicknesses. A detailed characterization of the performance of these lasers revealed that there is an optimal trade-off that yields the best far-field emission and the maximum temperature of operation. By exploiting the pure plasmonic mode of these waveguides, the standard operation conditions of a double-metal quantum cascade laser were retrieved, such that the maximum operating temperature of these devices is not affected by the process. These results pave the way to realizing a class of integrated devices working in the terahertz range which could be further exploited to fabricate terahertz on-chip circuitry.",
author = "Riccardo Degl'Innocenti and Shah, {Yash D.} and Robert Wallis and Adam Klimont and Yuan Ren and Jessop, {David S.} and Beere, {Harvey E.} and Ritchie, {David A.}",
year = "2015",
month = feb,
day = "23",
doi = "10.1063/1.4913307",
language = "English",
volume = "106",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics Inc.",
number = "8",

}

RIS

TY - JOUR

T1 - A hybrid plasmonic waveguide terahertz quantum cascade laser

AU - Degl'Innocenti, Riccardo

AU - Shah, Yash D.

AU - Wallis, Robert

AU - Klimont, Adam

AU - Ren, Yuan

AU - Jessop, David S.

AU - Beere, Harvey E.

AU - Ritchie, David A.

PY - 2015/2/23

Y1 - 2015/2/23

N2 - We present the realization of a quantum cascade laser emitting at around 2.85 THz, based on a hybrid plasmonic waveguide with a low refractive index dielectric cladding. This hybrid waveguide design allows the performance of a double-metal waveguide to be retained, while improving the emission far-field. A set of lasers based on the same active region material were fabricated with different metal layer thicknesses. A detailed characterization of the performance of these lasers revealed that there is an optimal trade-off that yields the best far-field emission and the maximum temperature of operation. By exploiting the pure plasmonic mode of these waveguides, the standard operation conditions of a double-metal quantum cascade laser were retrieved, such that the maximum operating temperature of these devices is not affected by the process. These results pave the way to realizing a class of integrated devices working in the terahertz range which could be further exploited to fabricate terahertz on-chip circuitry.

AB - We present the realization of a quantum cascade laser emitting at around 2.85 THz, based on a hybrid plasmonic waveguide with a low refractive index dielectric cladding. This hybrid waveguide design allows the performance of a double-metal waveguide to be retained, while improving the emission far-field. A set of lasers based on the same active region material were fabricated with different metal layer thicknesses. A detailed characterization of the performance of these lasers revealed that there is an optimal trade-off that yields the best far-field emission and the maximum temperature of operation. By exploiting the pure plasmonic mode of these waveguides, the standard operation conditions of a double-metal quantum cascade laser were retrieved, such that the maximum operating temperature of these devices is not affected by the process. These results pave the way to realizing a class of integrated devices working in the terahertz range which could be further exploited to fabricate terahertz on-chip circuitry.

U2 - 10.1063/1.4913307

DO - 10.1063/1.4913307

M3 - Journal article

AN - SCOPUS:84923334402

VL - 106

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 8

M1 - 082101

ER -