Quantum-Cascade Ring Resonator Laser with 7–8 μm Wavelength and Surface Radiation Output.

Autor:	Babichev, A. V., Kolodeznyi, E. S., Gladyshev, A. G., Denisov, D. V., Voznyuk, G. V., Kuritsyn, D. I., Mitrofanov, M. I., Slipchenko, S. O., Lyutetskii, A. V., Evtikhiev, V. P., Karachinsky, L. Ya., Novikov, I. I., Pikhtin, N. A., Morozov, S. V., Egorov, A. Y.
Předmět:	RING lasers LASER cavity resonators FOCUSED ion beams RADIATION QUANTUM cascade lasers WAVELENGTHS
Zdroj:	Semiconductors; 2020, Vol. 54 Issue 14, p1816-1819, 4p
Abstrakt:	We have created a quantum-cascade laser with 7–8 μm wavelength and surface radiation output through a lattice formed by focused ion beam etching of the upper cladding of the waveguide. The active area of the quantum-cascade laser heterostructure was formed on the basis of the solid alloy heteropair In0.53Ga0.47As/Al0.48In0.52As with two-phonon depletion of the cascade lower level. We demonstrate laser generation in the spectral band 7–8 μm for the created lasers with the selective ring resonator. The studies of the generation spectra for the temperatures in 8–77 K range have shown, that the mode spacing in the generation spectra of these lasers correspond to the whispering-gallery modes. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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