Detail publikačního výsledku

Scattering strength dependence of terahertz random lasers

Schoenhuber, S; Wenclawiak, M; Kainz, MA.; Limbacher, B.; Andrews, AM.; Detz, H.; Strasser, G.; Darmo, J.; Unterrainer, K.

Originální název

Scattering strength dependence of terahertz random lasers

Anglický název

Scattering strength dependence of terahertz random lasers

Druh

Článek WoS

Originální abstrakt

Random lasing operation requires an active region, a gain medium that supports multiple scattering, and, especially for integrated optoelectronic devices, a nonresonant outcoupling mechanism over a continuous spectrum. For broadband operation, the resonator geometry must provide frequency nonselective, strong feedback over a large bandwidth. The feedback mechanism by multiple scattering in terahertz semiconductor random lasers and the bandwidth of such cavities are presented and discussed. We demonstrate the influence of shape and scattering strength of the scatterers on the lasing process and determine the bandwidth of such resonator structures. We use passive resonator structures to prove that the feedback as well as the outcoupling is frequency independent over a large bandwidth.

Anglický abstrakt

Random lasing operation requires an active region, a gain medium that supports multiple scattering, and, especially for integrated optoelectronic devices, a nonresonant outcoupling mechanism over a continuous spectrum. For broadband operation, the resonator geometry must provide frequency nonselective, strong feedback over a large bandwidth. The feedback mechanism by multiple scattering in terahertz semiconductor random lasers and the bandwidth of such cavities are presented and discussed. We demonstrate the influence of shape and scattering strength of the scatterers on the lasing process and determine the bandwidth of such resonator structures. We use passive resonator structures to prove that the feedback as well as the outcoupling is frequency independent over a large bandwidth.

Klíčová slova

QUANTUM CASCADE LASERS; OPTICAL-TRANSMISSION

Klíčová slova v angličtině

QUANTUM CASCADE LASERS; OPTICAL-TRANSMISSION

Autoři

Schoenhuber, S; Wenclawiak, M; Kainz, MA.; Limbacher, B.; Andrews, AM.; Detz, H.; Strasser, G.; Darmo, J.; Unterrainer, K.

Rok RIV

2020

Vydáno

21.04.2019

ISSN

1089-7550

Periodikum

JOURNAL OF APPLIED PHYSICS

Svazek

125

Číslo

15

Stát

Spojené státy americké

Strany od

151611

Strany do

151611

Strany počet

7

URL

https://aip.scitation.org/doi/full/10.1063/1.5083699

BibTex

@article{BUT159790,
  author="Schoenhuber, S and Wenclawiak, M and Kainz, MA. and Limbacher, B. and Andrews, AM. and Detz, H. and Strasser, G. and Darmo, J. and Unterrainer, K.",
  title="Scattering strength dependence of terahertz random lasers",
  journal="JOURNAL OF APPLIED PHYSICS",
  year="2019",
  volume="125",
  number="15",
  pages="151611--151611",
  doi="10.1063/1.5083699",
  issn="0021-8979",
  url="https://aip.scitation.org/doi/full/10.1063/1.5083699"
}