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 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.

Far field control of large-area surface-emitting photonic crystal quantum cascade laser

2018 ◽  
Author(s):  
Yong Liang ◽  
Zhixin Wang ◽  
Wolf Johanna ◽  
Emilio Gini ◽  
Mattias Beck ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Quantum Cascade Laser ◽  
Far Field ◽  
Large Area ◽  
Quantum Cascade ◽  
Field Control

Chirped coupled ridge waveguide quantum cascade laser arrays with stable single-lobe far-field patterns

2018 ◽  
Vol 6 (8) ◽  
pp. 821
Author(s):  
Yue Zhao ◽  
Jin-Chuan Zhang ◽  
Chuan-Wei Liu ◽  
Ning Zhuo ◽  
Shen-Qiang Zhai ◽  
...  
Keyword(s):  
Quantum Cascade Laser ◽  
Ridge Waveguide ◽  
Far Field ◽  
Laser Arrays ◽  
Quantum Cascade ◽  
Field Patterns

Coherent 5.35μm surface emission from a GaAs-based distributed feedback quantum-cascade laser

2006 ◽  
Vol 88 (12) ◽  
pp. 121104 ◽  
Author(s):  
M. Austerer ◽  
C. Pflügl ◽  
S. Golka ◽  
W. Schrenk ◽  
A. M. Andrews ◽  
...  
Keyword(s):  
Quantum Cascade Laser ◽  
Distributed Feedback ◽  
Quantum Cascade ◽  
Surface Emission

Transversely superimposed gratings for narrow far-field terahertz surface emission of nonlinear quantum cascade lasers

2017 ◽  
Vol 57 (01) ◽  
pp. 1 ◽  
Author(s):  
Frederic Demmerle ◽  
Wolfhard Oberhausen ◽  
Dominik Burghart ◽  
Alexander Wolf ◽  
Ganpath Kumar Veerabathran ◽  
...  
Keyword(s):  
Quantum Cascade Lasers ◽  
Far Field ◽  
Quantum Cascade ◽  
Surface Emission ◽  
Nonlinear Quantum ◽  
Cascade Lasers

scholarly journals Temperature-Insensitive Imaging Properties of a Broadband Terahertz Nonlinear Quantum Cascade Laser

2020 ◽  
Vol 10 (17) ◽  
pp. 5926 ◽  
Author(s):  
Atsushi Nakanishi ◽  
Shohei Hayashi ◽  
Hiroshi Satozono ◽  
Kazuue Fujita
Keyword(s):  
Quantum Cascade Laser ◽  
Optical Nonlinearity ◽  
Field Pattern ◽  
Far Field ◽  
Thz Imaging ◽  
Quantum Cascade ◽  
Field Patterns ◽  
Imaging Characteristics ◽  
Imaging Results ◽  
Nonlinear Quantum

Terahertz (THz) quantum cascade laser sources based on optical nonlinearity are the only electrically pumped monolithic semiconductor sources operable at room temperature in the 0.6–6 THz range. We investigated the temperature dependence of the imaging characteristics of a broadband THz nonlinear quantum cascade laser and evaluated several important properties: the spectrum, far-field pattern and THz imaging results. Consequently, we found that the far-field patterns were single-lobed Gaussian-like, and THz images were well-resolved despite the lower operating temperature of the device. The stable temperature-performance indicates that this broadband THz source is promising for THz imaging applications.

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