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Analysis of High-Performing Terahertz Quantum Cascade Lasers

Viktor Rindert, Ekin Önder, and Andreas Wacker*

  • Mathematical Physics and NanoLund, Lund University, Box 118, Lund 22100, Sweden

  • *Andreas.Wacker@teorfys.lu.se
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Phys. Rev. Applied 18, L041001 – Published 21 October, 2022

DOI: https://doi.org/10.1103/PhysRevApplied.18.L041001

Abstract

Detailed simulations for terahertz quantum cascade lasers based on two-well designs are presented. We reproduce the maximal operation temperatures observed and attribute the degradation with temperature to the occupation of parasitic levels and thermal backfilling. Furthermore, we demonstrate that the current injection can be conveniently studied by using states, which combine energy selectivity and spatial localization. Improving the injection allows achievement of higher maximal operation temperatures around 265 K.

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References (34)

  1. J. Faist, F. Capasso, D. L. Sivco, C. Sirtori, A. L. Hutchinson, and A. Y. Cho, Quantum cascade laser, Science 264, 553 (1994).
  2. M. Beck, D. Hofstetter, T. Aellen, J. Faist, U. Oesterle, M. Ilegems, E. Gini, and H. Melchior, Continuous wave operation of a mid-infrared semiconductor laser at room temperature, Science 295, 301 (2002).
  3. R. Köhler, A. Tredicucci, F. Beltram, H. E. Beere, E. H. Linfield, A. G. Davies, D. A. Ritchie, R. C. Iotti, and F. Rossi, Terahertz semiconductor-heterostructure laser, Nature 417, 156 (2002).
  4. S. Fathololoumi, E. Dupont, C. Chan, Z. Wasilewski, S. Laframboise, D. Ban, A. Mátyás, C. Jirauschek, Q. Hu, and H. C. Liu, Terahertz quantum cascade lasers operating up to ∼200 K with optimized oscillator strength and improved injection tunneling, Opt. Express 20, 3866 (2012).
  5. L. Bosco, M. Franckié, G. Scalari, M. Beck, A. Wacker, and J. Faist, Thermoelectrically cooled THz quantum cascade laser operating up to 210 K, Appl. Phys. Lett. 115, 010601 (2019).
  6. A. Khalatpour, A. K. Paulsen, C. Deimert, Z. R. Wasilewski, and Q. Hu, High-power portable terahertz laser systems, Nat. Photonics 15, 16 (2021).
  7. B. Wen and D. Ban, High-temperature terahertz quantum cascade lasers, Prog. Quantum Electron. 80, 100363 (2021).
  8. S. Kumar, C. W. I. Chan, Q. Hu, and J. L. Reno, Two-well terahertz quantum-cascade laser with direct intrawell-phonon depopulation, Appl. Phys. Lett. 95, 141110 (2009).
  9. G. Scalari, M. I. Amanti, C. Walther, R. Terazzi, M. Beck, and J. Faist, Broadband THz lasing from a photon-phonon quantum cascade structure, Opt. Express 18, 8043 (2010).
  10. A. Wacker, Extraction-controlled quantum cascade lasers, Appl. Phys. Lett. 97, 081105 (2010).
  11. M. Franckié, L. Bosco, M. Beck, C. Bonzon, E. Mavrona, G. Scalari, A. Wacker, and J. Faist, Two-well quantum cascade laser optimization by non-equilibrium Green’s function modelling, Appl. Phys. Lett. 112, 021104 (2018).
  12. S. Khanal, L. Zhao, J. L. Reno, and S. Kumar, Temperature performance of terahertz quantum-cascade lasers with resonant-phonon active-regions, J. Opt. 16, 094001 (2014).
  13. A. Albo and Q. Hu, Carrier leakage into the continuum in diagonal GaAs/Al0.15GaAs terahertz quantum cascade lasers, Appl. Phys. Lett. 107, 241101 (2015).
  14. A. Albo, Y. V. Flores, Q. Hu, and J. L. Reno, Two-well terahertz quantum cascade lasers with suppressed carrier leakage, Appl. Phys. Lett. 111, 111107 (2017).
  15. L. Wang, T. Lin, M. Chen, K. Wang, and H. Hirayama, Leakages suppression by isolating the desired quantum levels for high-temperature terahertz quantum cascade lasers, Sci. Rep. 11, 23634 (2021).
  16. T. Miyoshi and D. Ban, Barrier height study of two-well resonant-phonon terahertz quantum cascade lasers. I. The third-order tunneling current theory, J. Appl. Phys. 130, 183103 (2021).
  17. A. N. Baranov, H. Nguyen-Van, Z. Loghmari, M. Bahriz, and R. Teissier, Terahertz quantum cascade laser with non-resonant extraction, AIP Adv. 9, 055214 (2019).
  18. M. Franckié and J. Faist, Bayesian Optimization of Terahertz Quantum Cascade Lasers, Phys. Rev. Appl. 13, 034025 (2020).
  19. A. Demić, Z. Ikonić, P. Dean, and D. Indjin, Prospects of temperature performance enhancement through higher resonant phonon transition designs in GaAs-based terahertz quantum-cascade lasers, New J. Phys. 24, 033047 (2022).
  20. A. Wacker, M. Lindskog, and D. O. Winge, Nonequilibrium Green’s function model for simulation of quantum cascade laser devices under operating conditions, IEEE J. Sel. Top. Quantum 19, 1200611 (2013).
  21. D. O. Winge, M. Franckié, and A. Wacker, Simulating terahertz quantum cascade lasers: Trends from samples from different labs, J. Appl. Phys. 120, 114302 (2016).
  22. This includes all Wannier levels below ΔEc and at least one level above ΔEc for all samples, so that all possible tunneling events among bound states are safely included.
  23. It also enters the screening of the potential from ionized impurities.
  24. Y. J. Han, L. H. Li, J. Zhu, A. Valavanis, J. R. Freeman, L. Chen, M. Rosamond, P. Dean, A. G. Davies, and E. H. Linfield, Silver-based surface plasmon waveguide for terahertz quantum cascade lasers, Opt. Express 26, 3814 (2018).
  25. W. Yi, V. Narayanamurti, H. Lu, M. A. Scarpulla, and A. C. Gossard, Probing semiconductor band structures and heterojunction interface properties with ballistic carrier emission: GaAs/AlxGa1−xAs as a model system, Phys. Rev. B 81, 235325 (2010).
  26. Z. R. Wasilewski, M. M. Dion, D. J. Lockwood, P. Poole, R. W. Streater, and A. J. SpringThorpe, Composition of AlGaAs, J. Appl. Phys. 81, 1683 (1997).
  27. M. S. Vitiello, R. C. Iotti, F. Rossi, L. Mahler, A. Tredicucci, H. E. Beere, D. A. Ritchie, Q. Hu, and G. Scamarcio, Non-equilibrium longitudinal and transverse optical phonons in terahertz quantum cascade lasers, Appl. Phys. Lett. 100, 091101 (2012).
  28. Y. B. Shi and I. Knezevic, Nonequilibrium phonon effects in midinfrared quantum cascade lasers, J. Appl. Phys. 116, 123105 (2014).
  29. R. Ferreira and G. Bastard, Evaluation of some scattering times for electrons in unbiased and biased single- and multiple-quantum-well structures, Phys. Rev. B 40, 1074 (1989).
  30. R. Nelander and A. Wacker, Temperature dependence of the gain profile for terahertz quantum cascade lasers, Appl. Phys. Lett. 92, 081102 (2008).
  31. H. Callebaut and Q. Hu, Importance of coherence for electron transport in terahertz quantum cascade lasers, J. Appl. Phys. 98, 104505 (2005).
  32. A. Wacker and A.-P. Jauho, Quantum Transport: The Link between Standard Approaches in Superlattices, Phys. Rev. Lett. 80, 369 (1998).
  33. W. Freeman, Longitudinal-optical phonon absorption and dephasing in three-level terahertz quantum cascade structures with different injector anticrossings, J. Appl. Phys. 128, 235702 (2020).
  34. A. Wacker, Semiconductor superlattices: A model system for nonlinear transport, Phys. Rep. 357, 1 (2002).

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Phys. Rev. Applied 18, L041001– Published 21 October, 2022
  • Received 16 June 2022
  • Revised 15 August 2022
  • Accepted 15 September 2022
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