scholarly journals Поверхностно-излучающий квантово-каскадный лазер с кольцевым резонатором

2021 ◽  
Vol 55 (7) ◽  
pp. 602
Author(s):  
А.В. Бабичев ◽  
Е.С. Колодезный ◽  
А.Г. Гладышев ◽  
Д.В. Денисов ◽  
Г.В. Вознюк ◽  
...  
Keyword(s):  
Active Region ◽  
Room Temperature ◽  
Ion Beam ◽  
Whispering Gallery Modes ◽  
Mode Spacing ◽  
Quantum Cascade ◽  
Surface Emission ◽  
Whispering Gallery ◽  
Ring Diameter ◽  
Solid Alloys

The results of studies of quantum-cascade laser with a surface emission through a grating formed in the layers of the top cladding of the waveguide by ion beam milling are presented. The active region of the QCL heterostructure was formed based on a heteropair of In0.53Ga0.47As / Al0.48In0.52As solid alloys with two-phonon resonance design. It is shown that lasing at room temperature close to 7.9 µm is demonstrated for a laser with a ring diameter of 191 µm. The mode spacing corresponds to whispering gallery modes.

scholarly journals Спектральные характеристики полукольцевых квантово-каскадных лазеров

2020 ◽  
Vol 128 (8) ◽  
pp. 1165
Author(s):  
А.В. Бабичев ◽  
Д.А. Пашнев ◽  
А.Г. Гладышев ◽  
А.С. Курочкин ◽  
Е.С. Колодезный ◽  
...  
Keyword(s):  
Quantum Cascade Laser ◽  
Room Temperature ◽  
Ring Resonator ◽  
Radiation Spectrum ◽  
Whispering Gallery Modes ◽  
Ring Resonators ◽  
Lasing Spectrum ◽  
Quantum Cascade ◽  
Whispering Gallery ◽  
Spectrum Width

A half-ring resonator design of a 7-8 μm range quantum-cascade laser with different radius values has been proposed and implemented. For a quantum-cascade laser with a radius of a half-ring resonator of 191 μm, lasing with a radiation spectrum width of 474 nm (82 cm^-1) was demonstrated at low temperatures. The FSR in such lasers was determined by the whispering gallery modes typical for ring resonators. At room temperature, the width of the lasing spectrum was 190 nm (31 cm^–1), which is caused by a decrease in gain and a possible increase in internal losses with increasing temperature. An increase in the cavity radius up to 291 μm made it possible to realize room temperature lasing with whispering gallery modes with a radiation spectrum width of 249 nm (40 cm^-1), by reducing losses on the mirrors.

scholarly journals Квантово-каскадный лазер с выводом излучения через текстурированный слой

2021 ◽  
Vol 55 (11) ◽  
pp. 1081
Author(s):  
А.В Бабичев ◽  
Е.С Колодезный ◽  
А.Г Гладышев ◽  
Д.В Денисов ◽  
Г.В Вознюк ◽  
...  
Keyword(s):  
Quantum Cascade Laser ◽  
Ion Beam ◽  
Ultrahigh Vacuum ◽  
Far Field ◽  
Field Profile ◽  
Quantum Cascade ◽  
Surface Emission ◽  
Radiation Output

The results of studies of ring quantum-cascade laser with a surface emission with radiation output through a textured layer formed in the layers of the top cladding of the waveguide by ultrahigh vacuum ion beam milling are presented. The far-field profile shows that the radiation is output through the windows with a textured layer in the range of angles of ~ 63–75 degrees to the normal.

scholarly journals Room temperature surface emission on large-area photonic crystal quantum cascade lasers

2019 ◽  
Vol 114 (3) ◽  
pp. 031102 ◽  
Author(s):  
Y. Liang ◽  
Z. Wang ◽  
J. Wolf ◽  
E. Gini ◽  
M. Beck ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Room Temperature ◽  
Quantum Cascade Lasers ◽  
Large Area ◽  
Quantum Cascade ◽  
Surface Emission ◽  
Cascade Lasers ◽  
Temperature Surface

The Effect of Active Region Heating on Dynamic and Power Characteristics of Quantum Cascade Lasers Emitting at a Wavelength of 4.8 µm at Room Temperature

2019 ◽  
Vol 127 (3) ◽  
pp. 479-482
Author(s):  
V. V. Dudelev ◽  
V. V. Mamutin ◽  
D. V. Chistyakov ◽  
E. A. Kognovitskaya ◽  
V. I. Kuchinskii ◽  
...  
Keyword(s):  
Active Region ◽  
Room Temperature ◽  
Quantum Cascade Lasers ◽  
Quantum Cascade ◽  
Power Characteristics ◽  
Cascade Lasers

scholarly journals Out-of-plane trion emission in monolayer WSe2 revealed by whispering gallery modes of dielectric microresonators

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Daniel Andres-Penares ◽  
Mojtaba Karimi Habil ◽  
Alejandro Molina-Sánchez ◽  
Carlos J. Zapata-Rodríguez ◽  
Juan P. Martínez-Pastor ◽  
...  
Keyword(s):  
Room Temperature ◽  
Close Contact ◽  
Spectroscopic Method ◽  
Whispering Gallery Modes ◽  
Quantum Communications ◽  
Whispering Gallery ◽  
Plane Component ◽  
Out Of Plane ◽  
Efficient Coupling ◽  
On Chip

AbstractThe manipulation of light emitted by two-dimensional semiconductors grounds forthcoming technologies in the field of on-chip communications. However, these technologies require from the so elusive out-of-plane photon sources to achieve an efficient coupling of radiated light into planar devices. Here we propose a versatile spectroscopic method that enables the identification of the out-of-plane component of dipoles. The method is based on the selective coupling of light emitted by in-plane and out-of-plane dipoles to the whispering gallery modes of spherical dielectric microresonators, in close contact to them. We have applied this method to demonstrate the existence of dipoles with an out-of-plane orientation in monolayer WSe2 at room temperature. Micro-photoluminescent measurements, numerical simulations based on finite element methods, and ab-initio calculations have identified trions as the source responsible for this out-of-plane emission, opening new routes for realizing on-chip integrated systems with applications in information processing and quantum communications.

scholarly journals Room temperature lasing of InAs/GaAs quantum dots in the whispering gallery modes of a silica microsphere

2007 ◽  
Vol 15 (16) ◽  
pp. 10052 ◽  
Author(s):  
Sébastien Steiner ◽  
Jean Hare ◽  
Valérie Lefèvre-Seguin ◽  
Jean-Michel Gérard
Keyword(s):  
Quantum Dots ◽  
Room Temperature ◽  
Whispering Gallery Modes ◽  
Silica Microsphere ◽  
Whispering Gallery

Observation of whispering-gallery modes in Si microdisks at room temperature

2007 ◽  
Vol 90 (14) ◽  
pp. 141102 ◽  
Author(s):  
J. S. Xia ◽  
Y. Ikegami ◽  
K. Nemoto ◽  
Y. Shiraki
Keyword(s):  
Room Temperature ◽  
Whispering Gallery Modes ◽  
Whispering Gallery

scholarly journals Фотодиоды для регистрации излучения квантово-размерных дисковых лазеров, работающих на модах шепчущей галереи (2.2-2.3 мкм)

2020 ◽  
Vol 54 (7) ◽  
pp. 677
Author(s):  
Е.В. Куницына ◽  
М.А. Ройз ◽  
И.А. Андреев ◽  
Е.А. Гребенщикова ◽  
А.А. Пивоварова ◽  
...  
Keyword(s):  
Time Constant ◽  
Room Temperature ◽  
Spectral Characteristics ◽  
Cryogenic Cooling ◽  
Whispering Gallery Modes ◽  
Whispering Gallery

Photodiodes developed in the GaSb-InAs system were first used for investigation the spectral characteristics of single and coupled disk lasers emitting on whispering gallery modes at 2.2–2.3 µm. The capacity of the photodiodes with a diameter of photosensitive area of 2.0 mm was C=520 pF at U=−2 V, which corresponds to a time constant of tau=53 ns. It is shown that the parameters of the developed photodiodes make it possible to detect the emission of quantum-sized disk lasers at room temperature and not to use cryogenic cooling.

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