Engineering the intersubband lifetime with interface roughness in Quantum Cascade lasers

Engineering the intersubband lifetime with interface roughness in Quantum Cascade lasers

Due to interface roughness scattering, the lower laser state depopulation lifetime of Quantum Cascade lasers can be significantly reduced (e.g. from 0.25 to 0.09 picosecond theoretically) by placing additional interfaces strategically in the active region.

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Bibliographische Detailangaben
Hauptverfasser: YenTing Chiu, Dikmelik, Y., Qiang Zhang, Khurgin, J. B., Gmachl, C. F.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Gas lasers
Laser theory
Laser transitions
Quantum cascade lasers
Scattering
Temperature
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Beschreibung
Zusammenfassung:Due to interface roughness scattering, the lower laser state depopulation lifetime of Quantum Cascade lasers can be significantly reduced (e.g. from 0.25 to 0.09 picosecond theoretically) by placing additional interfaces strategically in the active region.
ISSN:2160-8989
2160-9004