Email this article Room Temperature Lasing of Multi-Stage Quantum-Cascade Lasers at 8 μm Wavelength
- Authors: Babichev A.V.1,2, Gladyshev A.G.2, Kurochkin A.S.1, Kolodeznyi E.S.1, Sokolovskii G.S.1,3,4, Bougrov V.E.1, Karachinsky L.Y.1,2,3, Novikov I.I.1,2,3, Bousseksou A.G.5, Egorov A.Y.1
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Affiliations:
- ITMO University
- Connector Optics LLC
- Ioffe Institute
- Saint Petersburg Electrotechnical University “LETI”
- Center of Nanoscience and Nanotechnology (C2N)
- Issue: Vol 52, No 8 (2018)
- Pages: 1082-1085
- Section: Physics of Semiconductor Devices
- URL: https://journal-vniispk.ru/1063-7826/article/view/203935
- DOI: https://doi.org/10.1134/S1063782618080031
- ID: 203935
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Abstract
Room-temperature lasing at a wavelength of 8 μm in multistage quantum-cascade lasers pumped by current pulses is demonstrated. A quantum-cascade laser heterostructure based on the In0.53Ga0.47As/Al0.48In0.52As alloy heteropair, matched to an InP substrate, is grown by molecular-beam epitaxy and consists of 50 identical cascades placed in a waveguide with air as the top cladding. A threshold current density of ~5.1 kA/cm2 at a temperature of 300 K is obtained in ridge lasers with a cavity length of 1.4 mm and a ridge width of 24 μm.
About the authors
A. V. Babichev
ITMO University; Connector Optics LLC
Email: anton.egorov@connector-optics.com
Russian Federation, St. Petersburg, 197101; St. Petersburg, 194292
A. G. Gladyshev
Connector Optics LLC
Email: anton.egorov@connector-optics.com
Russian Federation, St. Petersburg, 194292
A. S. Kurochkin
ITMO University
Email: anton.egorov@connector-optics.com
Russian Federation, St. Petersburg, 197101
E. S. Kolodeznyi
ITMO University
Email: anton.egorov@connector-optics.com
Russian Federation, St. Petersburg, 197101
G. S. Sokolovskii
ITMO University; Ioffe Institute; Saint Petersburg Electrotechnical University “LETI”
Email: anton.egorov@connector-optics.com
Russian Federation, St. Petersburg, 197101; St. Petersburg, 194021; Saint Petersburg, 197376
V. E. Bougrov
ITMO University
Email: anton.egorov@connector-optics.com
Russian Federation, St. Petersburg, 197101
L. Ya. Karachinsky
ITMO University; Connector Optics LLC; Ioffe Institute
Email: anton.egorov@connector-optics.com
Russian Federation, St. Petersburg, 197101; St. Petersburg, 194292; St. Petersburg, 194021
I. I. Novikov
ITMO University; Connector Optics LLC; Ioffe Institute
Email: anton.egorov@connector-optics.com
Russian Federation, St. Petersburg, 197101; St. Petersburg, 194292; St. Petersburg, 194021
A. G. Bousseksou
Center of Nanoscience and Nanotechnology (C2N)
Email: anton.egorov@connector-optics.com
France, Orsay cedex, 91405
A. Yu. Egorov
ITMO University
Author for correspondence.
Email: anton.egorov@connector-optics.com
Russian Federation, St. Petersburg, 197101
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