Quantum-Cascade Lasers Generating at the 4.8-μm Wavelength at Room Temperature

Journal Article · Sat Sep 15 04:00:00 EDT 2018 · Technical Physics Letters

DOI:https://doi.org/10.1134/S1063785018090249· OSTI ID:22786247

Vasil’ev, A. P.; Lyutetskii, A. V.; Il’inskaya, N. D.; Usikova, A. A.; Zadiranov, Yu. M.; Maleev, N. A. ^[1]; Sofronov, A. N.; Firsov, D. A.; Vorob’ev, L. E. ^[2]; Ustinov, V. M. ^[1]

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1. Russian Academy of Sciences, Ioffe Physical Technical Institute (Russian Federation)
2. Peter the Great St. Petersburg Polytechnic University (Russian Federation)

We report on room-temperature generation at the 4.8-μm wavelength in a lattice-matched structure of a quantum cascade laser (QCL) grown on indium phosphide (InP) substrate. Laser heterostructures grown by molecular beam epitaxy (MBE) comprised 30 cascades and were designed to generate at the 4.80 μm wavelength corresponding to an atmospheric transparency window. Experiments demonstrated effective lasing at temperatures from 80 to 300 K on a wavelength coinciding with the calculated value, which confirmed the high quality of interfaces, high precision of layer thicknesses, and high accuracy of active region doping.

• OSTI ID: 22786247
• Journal Information: Technical Physics Letters, Journal Name: Technical Physics Letters Journal Issue: 9 Vol. 44; ISSN 1063-7850
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
INDIUM PHOSPHIDES
INTERFACES
LAYERS
MOLECULAR BEAM EPITAXY
OPACITY
SUBSTRATES
THICKNESS
WAVELENGTHS