ZnO-based terahertz quantum cascade lasers

• Autorzy: Sirkeli Vadim

Identyfikatory

DOI

10.1016/j.opelre.2019.04.002

• Języki publikacji: EN

Abstrakty

EN

High-power terahertz sources operating at room-temperature are promising for many applications such as explosive materials detection, non-invasive medical imaging, and high speed telecommunication. Here we report the results of a simulation study, which shows the significantly improved performance of room-temperature terahertz quantum cascade lasers (THz QCLs) based on a ZnMgO/ZnO material system employing a 2-well design scheme with variable barrier heights and a delta-doped injector well. We found that by varying and optimizing constituent layer widths and doping level of the injector well, high power performance of THz QCLs can be achieved at room temperature: optical gain and radiation frequency is varied from 108 cm−1 @ 2.18 THz to 300 cm−1 @ 4.96 THz. These results show that among II–VI compounds the ZnMgO/ZnO material system is optimally suited for high-performance room-temperature THz QCLs.

Słowa kluczowe

EN

ZnO; MgO; ZnMgO; quantum well devices; quantum cascade laser; terahertz radiation

• Wydawca: Stowarzyszenie Elektryków Polskich ; Polska Akademia Nauk ; Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
• Czasopismo: Opto-Electronics Review
• Rocznik: 2019
• Tom: Vol. 27, No. 2
• Strony: 119--122
• Opis fizyczny: Bibliogr. 14 poz., wykr., tab.

Twórcy

autor

Sirkeli Vadim

• Institut für Mikrowellentechnik und Photonik, Technische Universität Darmstadt, Merckstraße 25, 64283, Darmstadt, Germany
• Faculty of Physics and Engineering, Moldova State University, 60 A. Mateevici St., MD-2009, Chisinau, Republic of Moldova

Bibliografia

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• [4] S. Fathololoumi, E. Dupont, C.W.I. Chan, Z.R. Wasilewski, S.R. Laframboise, D. Ban, A. Matyas, C. Jirauschek, Q. Hu, H.C. Liu, Terahertz quantum cascadelasers operating up to ∼200 K with optimized oscillator strength andimproved injection tunneling, Opt. Express 20 (2012) 3866.
• [5] E. Bellotti, K. Driscoll, T.D. Moustakas, R. Paiella, Monte Carlo simulation ofterahertz quantum cascade laser structures based on wide-bandgapsemiconductors, J. Appl. Phys. 105 (2009), 113103.
• [6] V.P. Sirkeli, O. Yilmazoglu, F. Küppers, H.L. Hartnagel, Room-temperatureterahertz emission from ZnSe-based quantum cascade structures: Asimulation study, Phys. Status Solidi – Rapid Res. Lett. 11 (2017), 1600423.
• [7] M.M. Bajo, J. Tamayo-Arriola, A. Jollivet, M. Tchernycheva, F.H. Julien, R. Peretti, J. Faist, M. Hugues, J.-M. Chauveau, A. Hierro, Intersubband absorptionin m-plane ZnO/ZnMgO MQWs, Proc. SPIE 10105, Oxide-Based Materials andDevices VIII 1010500 (2017), http://dx.doi.org/10.1117/12.2252056.
• [8] V.P. Sirkeli, O. Yilmazoglu, D.S. Ong, S. Preu, F. Küppers, H.L. Hartnagel, Resonant Tunneling and Quantum Cascading for OptimumRoom-Temperature Generation of THz Signals, IEEE Trans. Electron Devices64 (2017) 3482.
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• [10] P. Greck, S. Birner, B. Huber, P. Vogl, Efficient method for the calculation ofdissipative quantum transport in quantum cascade lasers, Opt. Express 23(2015) 6587.
• [11] V.P. Sirkeli, O. Yilmazoglu, F. Küppers, H.L. Hartnagel, Effect of p-NiO andn-ZnSe interlayers on the efficiency of p-GaN/n-ZnO light-emitting diodestructures, Semicond. Sci. Technol. 30 (2015), 065005.
• [12] S. Adachi, Properties of Semiconductor Alloys: Group – IV, III-V and II-VISemiconductors, Wiley, Berlin, 2009.
• [13] S. Kumar, C.W.I. Chan, Q. Hu, J.L. Reno, A 1.8-THz quantum cascade laseroperating significantly above the temperature of /kB, Nat. Phys. 7 (2011)166.
• [14] A. Jiang, A. Matyas, K. Vijayraghavan, C. Jirauschek, Z.R. Wasilewski, M.A. Belkin, Experimental investigation of terahertz quantum cascade laser withvariable barrier heights, J. Appl. Phys. 115 (2014) 163103

Uwagi

EN

1. V.P.S. gratefully acknowledges financial support from the Alexander von Humboldt Foundation. This work was partly supported under institutional project No. 15.817.02.34A. The authors would like to thank Prof. Dr.-Ing. Franko Küppers and PD Dr.-Ing. habil. Oktay Yilmazoglu for useful discussion, and would like to thank also Dr. Stefan Birner and Nextnano GmbH Company for providing nextnano.MSB code.

PL

2. Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).