Publication detail

Evaluation of Material Systems for THz Quantum Cascade Laser Active Regions

DETZ, H. ANDREWS, A. KAINZ, M. SCHÖNHUBER, S. ZEDERBAUER, T. MACFARLAND, D. KRALL, M. DEUTSCH, C. BRANDSTETTER, M. KLANG, P. SCHRENK, W. UNTERRAINER, K. STRASSER, G.

Original Title

Evaluation of Material Systems for THz Quantum Cascade Laser Active Regions

Type

journal article in Web of Science

Language

English

Original Abstract

Quantum cascade lasers (QCLs) have been realized in several different material systems. In the mid-infrared, active regions are predominantly based on In0.53Ga0.47As and InAs as quantumwellmaterial. Market-ready devices routinely provide continuous-wave operation at room temperature. For their THz counterparts, the situation is less clear. The most common material system for THz QCLs is the inherently lattice-matched combination of GaAs with Al0.15Ga0.85As barriers. Yet, these devices still only reach a maximum operating temperature of 200 K with a lack of progress within the past years. Based on the identification of key parameters, this work reviews material systems for quantum cascade lasers with an emphasis on material and growth-related aspects and the goal to identify promising candidates for future device generations. Similar active regions realized in different material systems allow to estimate the gain per unit thickness, as well as total growth times and relative thickness errors.

Keywords

III–V heterostructures, intersubband devices, molecular beam epitaxy, quantum cascade lasers, superlattices

Authors

DETZ, H.; ANDREWS, A.; KAINZ, M.; SCHÖNHUBER, S.; ZEDERBAUER, T.; MACFARLAND, D.; KRALL, M.; DEUTSCH, C.; BRANDSTETTER, M.; KLANG, P.; SCHRENK, W.; UNTERRAINER, K.; STRASSER, G.

Released

26. 9. 2018

ISBN

1862-6300

Periodical

physica status solidi (a)

Year of study

1

Number

1

State

Federal Republic of Germany

Pages from

1

Pages to

8

Pages count

8

URL

https://onlinelibrary.wiley.com/doi/full/10.1002/pssa.201800504

BibTex

@article{BUT150301,
  author="Hermann {Detz} and Aaron M. {Andrews} and Martin A. {Kainz} and Sebastian {Schönhuber} and Tobias {Zederbauer} and Donald {MacFarland} and Michael {Krall} and Christoph {Deutsch} and Martin {Brandstetter} and Pavel {Klang} and Werner {Schrenk} and Karl {Unterrainer} and Gottfried {Strasser}",
  title="Evaluation of Material Systems for THz Quantum Cascade Laser Active Regions",
  journal="physica status solidi (a)",
  year="2018",
  volume="1",
  number="1",
  pages="1--8",
  doi="10.1002/pssa.201800504",
  issn="1862-6300",
  url="https://onlinelibrary.wiley.com/doi/full/10.1002/pssa.201800504"
}