Reflection imaging with terahertz quantum‐cascade laser and quantum‐well photodetector

2014 ◽  
Vol 50 (5) ◽  
pp. 389-391 ◽  
Author(s):  
Z.Y. Tan ◽  
Tao Zhou ◽  
Z.L. Fu ◽  
J.C. Cao
Keyword(s):  
Quantum Well ◽  
Quantum Cascade Laser ◽  
Quantum Cascade ◽  
Reflection Imaging

scholarly journals Absorption-sensitive diffuse reflection imaging of concealed powders using a terahertz quantum cascade laser

2008 ◽  
Vol 16 (9) ◽  
pp. 5997 ◽  
Author(s):  
Paul Dean ◽  
Muhammad U. Shaukat ◽  
Suraj P. Khanna ◽  
Subhasish Chakraborty ◽  
Mohammad Lachab ◽  
...  
Keyword(s):  
Quantum Cascade Laser ◽  
Diffuse Reflection ◽  
Quantum Cascade ◽  
Reflection Imaging

scholarly journals Bound-to-continuum terahertz quantum cascade laser with a single-quantum-well phonon extraction/injection stage

2009 ◽  
Vol 11 (12) ◽  
pp. 125022 ◽  
Author(s):  
Maria I Amanti ◽  
Giacomo Scalari ◽  
Romain Terazzi ◽  
Milan Fischer ◽  
Mattias Beck ◽  
...  
Keyword(s):  
Quantum Well ◽  
Quantum Cascade Laser ◽  
Single Quantum ◽  
Single Quantum Well ◽  
Quantum Cascade

Wireless communication demonstration at 4.1 THz using quantum cascade laser and quantum well photodetector

2011 ◽  
Vol 47 (17) ◽  
pp. 1002 ◽  
Author(s):  
Z. Chen ◽  
Z.Y. Tan ◽  
Y.J. Han ◽  
R. Zhang ◽  
X.G. Guo ◽  
...  
Keyword(s):  
Wireless Communication ◽  
Quantum Well ◽  
Quantum Cascade Laser ◽  
Quantum Cascade

Demonstration of free space transmission from a THz quantum cascade laser to a quantum well detector

2009 ◽  
Author(s):  
P.D. Grant ◽  
R. Dudek ◽  
S. Laframboise ◽  
M. Graf ◽  
Z.R. Wasilewski ◽  
...  
Keyword(s):  
Quantum Well ◽  
Quantum Cascade Laser ◽  
Free Space ◽  
Quantum Cascade ◽  
Well Detector

Optical properties of a triple AlGaAs/GaAs quantum well purported for quantum cascade laser active region

2021 ◽  
Vol 26 ◽  
pp. 101936
Author(s):  
M.K. Bahar ◽  
K.A. Rodríguez-Magdaleno ◽  
J.C. Martínez-Orozco ◽  
M.E. Mora-Ramos ◽  
F. Ungan
Keyword(s):  
Optical Properties ◽  
Active Region ◽  
Quantum Well ◽  
Quantum Cascade Laser ◽  
Quantum Cascade

InGaAs/GaAsSb Heterostructures: Aluminum-Free Intersubband Devices

2009 ◽  
Vol 1195 ◽  
Author(s):  
Michele Nobile ◽  
Gottfried Strasser ◽  
Hermann Detz ◽  
Elvis Mujagic ◽  
Aaron Andrews ◽  
...  
Keyword(s):  
Quantum Well ◽  
Quantum Wells ◽  
Quantum Cascade Laser ◽  
Multiple Quantum Well ◽  
Wavelength Region ◽  
Threshold Current ◽  
Multiple Quantum ◽  
Material System ◽  
Quantum Cascade ◽  
Intersubband Absorption

AbstractAn experimental study on mid-infrared intersubband absorption in InGaAs/GaAsSb multiple quantum wells grown lattice-matched to InP substrates by molecular beam epitaxy is presented. Intersubband absorption in a broad wavelength region (5.8 - 11.6 μm) is observed in multiple quantum well samples with well widths ranging between 4.5 and 12 nm. A conduction band offset at the InGaAs/GaAsSb heterointerface of 360 meV gives an excellent agreement between the theoretically calculated ISB transition energies and the Fourier-transform infrared spectroscopy measurements over the whole range of well widths under investigation. Two kinds of intersubband devices based on the InGaAs/GaAsSb material system are presented: a quantum well infrared photodetector operating at a wavelength of 5.6μm and an aluminum-free quantum cascade laser. The presented quantum cascade laser emits at a wavelength of 11.3 μm, with a threshold current density of 1.7 kA/cm2 at 78 K.

Real-time reflection imaging with terahertz camera and quantum-cascade laser

2014 ◽  
Vol 12 (7) ◽  
pp. 070401-70403
Author(s):  
Zhiyong Tan Zhiyong Tan ◽  
Li Gu Li Gu ◽  
Tianhong Xu Tianhong Xu ◽  
Tao Zhou Tao Zhou ◽  
Juncheng Cao Juncheng Cao
Keyword(s):  
Real Time ◽  
Quantum Cascade Laser ◽  
Quantum Cascade ◽  
Reflection Imaging
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