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Kvantovaya Elektronika, 2018, Volume 48, Number 11, Pages 1005–1008 (Mi qe16931)  

This article is cited in 6 scientific papers (total in 6 papers)

Terahertz radiation

Mode loss spectra in THz quantum-cascade lasers with gold- and silver-based double metal waveguides

D. V. Ushakova, A. A. Afonenkoa, A. A. Dubinovbc, V. I. Gavrilenkob, I. S. Vasil'evskiid, N. V. Shchavruke, D. S. Ponomareve, R. A. Khabibulline

a Belarusian State University, Minsk
b Institute for Physics of Microstructures, Russian Academy of Sciences, Nizhnii Novgorod
c Lobachevski State University of Nizhni Novgorod
d National Engineering Physics Institute "MEPhI", Moscow
e V.G. Mokerov Institute of Ultra High Frequency Semiconductor Electronics of RAS, Moscow

Abstract: Spectra of the waveguide loss coefficient for THz radiation of a quantum-cascade laser with a gold- and silver-based double metal waveguide (DMW) are calculated based on the measurements of resistivity of the metals for different temperatures. It is shown that, taking into account the absorption of THz radiation by free carriers and optical phonons, the spectrum of total mode losses has a broad minimum in the range of 3–6 THz, which shifts to higher frequencies with increasing temperature. The minimum losses in the Au-based waveguide increase from 8 to 27 cm-1 as temperature increases from 100 to 300 K. The use of an Ag-based DMW makes it possible to decrease the losses by 2–4 cm-1 compared to the Au-based DMW.

Keywords: double metal waveguide, loss coefficient, quantum-cascade lasers, terahertz region.

Funding Agency Grant Number
Russian Foundation for Basic Research 17-02-00070 А
Belarusian Republican Foundation for Fundamental Research Ф18Р-107
Russian Science Foundation 18-19-00493

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English version:
Quantum Electronics, 2018, 48:11, 1005–1008

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Received: 30.08.2018

Citation: D. V. Ushakov, A. A. Afonenko, A. A. Dubinov, V. I. Gavrilenko, I. S. Vasil'evskii, N. V. Shchavruk, D. S. Ponomarev, R. A. Khabibullin, “Mode loss spectra in THz quantum-cascade lasers with gold- and silver-based double metal waveguides”, Kvantovaya Elektronika, 48:11 (2018), 1005–1008 [Quantum Electron., 48:11 (2018), 1005–1008]

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    Citing articles on Google Scholar: Russian citations, English citations
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    This publication is cited in the following articles:
    1. Quantum Electron., 49:10 (2019), 913–918  mathnet  crossref  isi  elib
    2. R. Khabibullin, D. Ushakov, A. Afonenko, N. Shchavruk, D. Ponomarev, I. Vasil'evskii, D. Safonov, A. Dubinov, Saratov Fall Meeting 2018: Laser Physics, Photonic Technologies and Molecular Modeling, Proceedings of Spie, 11066, ed. V. Derbov, Spie-Int Soc Optical Engineering, 2019, 1106613  crossref  isi
    3. R. A. Khabibullin, N. V. Shchavruk, D. S. Ponomarev, D. V. Ushakov, A. A. Afonenko, K. V. Maremyanin, O. Yu. Volkov, V. V. Pavlovskiy, A. A. Dubinov, Opto-Electron. Rev., 27:4 (2019), 329–333  crossref  isi
    4. D. Ushakov, A. Afonenko, R. Khabibullin, D. Ponomarev, V. Aleshkin, S. Morozov, A. Dubinov, Opt. Express, 28:17 (2020), 25371–25382  crossref  isi  scopus
    5. A. E. Yachmenev, S. S. Pushkarev, R. R. Reznik, R. A. Khabibullin, D. S. Ponomarev, Prog. Cryst. Growth Charact. Mater., 66:2 (2020), UNSP 100485  crossref  isi
    6. Quantum Electron., 51:2 (2021), 164–168  mathnet  crossref  isi  elib
  • Квантовая электроника Quantum Electronics
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