scholarly journals 3.5-THz quantum-cascade laser emission from dual diagonal feedhorns

2018 ◽  
Author(s):  
B.N. Ellison ◽  
A. Valavanis ◽  
O. Auriacombe ◽  
T. Rawlings ◽  
N. Brewster ◽  
...  
Keyword(s):  
Quantum Cascade Laser ◽  
Laser Emission ◽  
Quantum Cascade

Zigzag modes in quantum cascade laser emission spectra

2014 ◽  
Vol 31 (10) ◽  
pp. 2399 ◽  
Author(s):  
Richard L. Tober ◽  
John D. Bruno ◽  
Sergei Suchalkin ◽  
Gregory Belenky
Keyword(s):  
Quantum Cascade Laser ◽  
Laser Emission ◽  
Emission Spectra ◽  
Quantum Cascade

Directional single mode quantum cascade laser emission using second-order metal grating coupler

2011 ◽  
Vol 98 (2) ◽  
pp. 021101 ◽  
Author(s):  
G. Maisons ◽  
M. Carras ◽  
M. Garcia ◽  
B. Simozrag ◽  
X. Marcadet
Keyword(s):  
Quantum Cascade Laser ◽  
Laser Emission ◽  
Single Mode ◽  
Second Order ◽  
Grating Coupler ◽  
Quantum Cascade ◽  
Metal Grating

Investigation of the spectral width of quantum cascade laser emission near 5.2 μm by a heterodyne experiment

2001 ◽  
Vol 197 (1-3) ◽  
pp. 127-130 ◽  
Author(s):  
Heiko Ganser ◽  
Bertold Frech ◽  
Andreas Jentsch ◽  
Manfred Mürtz ◽  
Claire Gmachl ◽  
...  
Keyword(s):  
Quantum Cascade Laser ◽  
Laser Emission ◽  
Spectral Width ◽  
Quantum Cascade

Spectral modification of the laser emission of a terahertz quantum cascade laser induced by broad-band double pulse injection seeding

2015 ◽  
Vol 107 (11) ◽  
pp. 111103 ◽  
Author(s):  
Sergej Markmann ◽  
Hanond Nong ◽  
Shovon Pal ◽  
Negar Hekmat ◽  
Sven Scholz ◽  
...  
Keyword(s):  
Quantum Cascade Laser ◽  
Laser Emission ◽  
Broad Band ◽  
Double Pulse ◽  
Pulse Injection ◽  
Quantum Cascade ◽  
Spectral Modification ◽  
Injection Seeding

Semiconductor nanowires for highly sensitive, room-temperature detection of terahertz quantum cascade laser emission

2012 ◽  
Vol 100 (24) ◽  
pp. 241101 ◽  
Author(s):  
Miriam S. Vitiello ◽  
Leonardo Viti ◽  
Lorenzo Romeo ◽  
Daniele Ercolani ◽  
G. Scalari ◽  
...  
Keyword(s):  
Quantum Cascade Laser ◽  
Room Temperature ◽  
Laser Emission ◽  
Semiconductor Nanowires ◽  
Quantum Cascade ◽  
Temperature Detection ◽  
Highly Sensitive

scholarly journals Laser emission at 45 THz from 15NH3 and a mid-infrared quantum-cascade laser as a pump source

2020 ◽  
Vol 28 (16) ◽  
pp. 23114
Author(s):  
Martin Wienold ◽  
Alsu Zubairova ◽  
Heinz-Wilhelm Hübers
Keyword(s):  
Quantum Cascade Laser ◽  
Laser Emission ◽  
Mid Infrared ◽  
Quantum Cascade ◽  
Pump Source

scholarly journals Terahertz Detection of Quantum Cascade Laser Emission by Plasma Waves in Field Effect Transistors

2011 ◽  
Vol 120 (5) ◽  
pp. 930-932 ◽  
Author(s):  
F. Teppe ◽  
C. Consejo ◽  
J. Torres ◽  
B. Chenaud ◽  
P. Solignac ◽  
...  
Keyword(s):  
Quantum Cascade Laser ◽  
Field Effect ◽  
Laser Emission ◽  
Field Effect Transistors ◽  
Plasma Waves ◽  
Quantum Cascade ◽  
Terahertz Detection

HIGH-MAGNETIC-FIELD SPECTROSCOPY OF InGaAs-AlAs/InP QUANTUM-CASCADE LASER

2007 ◽  
Vol 21 (08n09) ◽  
pp. 1584-1588
Author(s):  
M. P. Semtsiv ◽  
S. Dressler ◽  
W. T. Masselink ◽  
G. Fedorov ◽  
D. Smirnov
Keyword(s):  
Magnetic Field ◽  
High Magnetic Field ◽  
Quantum Cascade Laser ◽  
Laser Emission ◽  
Laser Action ◽  
Active Regions ◽  
Bound State ◽  
Quantum Cascade ◽  
Field Spectroscopy ◽  
The Magnetic Field

The magnetic-field dependence of the mid-infrared quantum-cascade laser emission spectra is used to identify the particular Wannier-Stark states responsible for the laser action in two different laser designs. The active regions in both QCLs are based on the bound-to-continuum design, but have differing degrees of coupling between the injector miniband and the bound state. The effects of the magnetic field and the injection-barrier width on the emission wavelength indicates that the laser emission in the QCL with less coupling between the injector and the bound state originates from a transition between the injector and extractor minibands. The transition from injector miniband to extractor miniband has both a lower energy and a lower oscillator strength than the transition originating from the bound state, but dominates because of the low population of the upper bound state. This result has important implications for further miniband engineering of QCL active regions for laser action at the shortest possible wavelengths. New quantum-cascade laser sample, designed regarding the high-magnetic-field spectroscopy results mentioned above, indeed operates at shorter wavelength and demonstrates outstanding performance up to room temperature.

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