scholarly journals Terahertz spectroscopy using quantum-cascade lasers

Photoniques ◽  
2020 ◽  
pp. 27-32 ◽  
Author(s):  
Heinz-Wilhelm Hübers ◽  
Heiko Richter ◽  
Martin Wienold ◽  
Xiang Lü ◽  
Lutz Schrottke ◽  
...  
Keyword(s):  
Terahertz Spectroscopy ◽  
Narrow Band ◽  
Quantum Cascade Lasers ◽  
Molecular Spectroscopy ◽  
Local Oscillator ◽  
Research Topics ◽  
Quantum Cascade ◽  
New Research ◽  
Cascade Lasers ◽  
Heterodyne Spectrometer

Terahertz (THz) quantum-cascade lasers (QCLs) provide powerful, narrow-band, and frequencytunable radiation, which makes them ideal sources for high-resolution molecular spectroscopy. A first application of a THz QCL has been as local oscillator in a heterodyne spectrometer for astronomy on board a Boeing 747. For laboratory spectroscopy, QCLs close the so-called THz gap and enable new research topics.

scholarly journals Wideband, high-resolution terahertz spectroscopy by light-induced frequency tuning of quantum-cascade lasers

2019 ◽  
Vol 27 (4) ◽  
pp. 5420 ◽  
Author(s):  
T. Alam ◽  
M. Wienold ◽  
X. Lü ◽  
K. Biermann ◽  
L. Schrottke ◽  
...  
Keyword(s):  
High Resolution ◽  
Terahertz Spectroscopy ◽  
Quantum Cascade Lasers ◽  
Frequency Tuning ◽  
Quantum Cascade ◽  
Cascade Lasers

Fully reflective external-cavity setup for quantum-cascade lasers as a local oscillator in mid-infrared wavelength heterodyne spectroscopy

2008 ◽  
Vol 47 (16) ◽  
pp. 2993 ◽  
Author(s):  
Dušan Stupar ◽  
Jürgen Krieg ◽  
Peter Krötz ◽  
Guido Sonnabend ◽  
Manuela Sornig ◽  
...  
Keyword(s):  
Quantum Cascade Lasers ◽  
External Cavity ◽  
Local Oscillator ◽  
Mid Infrared ◽  
Infrared Wavelength ◽  
Quantum Cascade ◽  
Heterodyne Spectroscopy ◽  
Cascade Lasers

High-resolution molecular spectroscopy with 2.5 terahertz quantum cascade lasers

2008 ◽  
Author(s):  
Sergey G. Pavlov ◽  
Heinz-Wilhelm Hubers ◽  
Michael Greiner-Bar ◽  
Heiko Richter ◽  
Lukas Mahler ◽  
...  
Keyword(s):  
High Resolution ◽  
Quantum Cascade Lasers ◽  
Molecular Spectroscopy ◽  
Quantum Cascade ◽  
Cascade Lasers

Biomedical applications of mid-infrared quantum cascade lasers – a review

The Analyst ◽  
2018 ◽  
Vol 143 (24) ◽  
pp. 5888-5911 ◽  
Author(s):  
Katharina Isensee ◽  
Niels Kröger-Lui ◽  
Wolfgang Petrich
Keyword(s):  
Power Density ◽  
Biomedical Applications ◽  
Narrow Band ◽  
Quantum Cascade Lasers ◽  
Spectral Power ◽  
Spectral Power Density ◽  
Mid Infrared ◽  
Quantum Cascade ◽  
Band Emission ◽  
Cascade Lasers

Quantum cascade lasers with high spectral power density and narrow band emission profiles provide novel access to biomedical applications.

scholarly journals Long Wavelength (λ > 17 µm) Distributed Feedback Quantum Cascade Lasers Operating in a Continuous Wave at Room Temperature

Photonics ◽  
2019 ◽  
Vol 6 (1) ◽  
pp. 31 ◽  
Author(s):  
Hoang Nguyen Van ◽  
Zeineb Loghmari ◽  
Hadrien Philip ◽  
Michael Bahriz ◽  
Alexei Baranov ◽  
...  
Keyword(s):  
Semiconductor Lasers ◽  
Room Temperature ◽  
Continuous Wave ◽  
Quantum Cascade Lasers ◽  
Molecular Spectroscopy ◽  
Single Mode ◽  
Distributed Feedback ◽  
Long Wavelength ◽  
Quantum Cascade ◽  
Cascade Lasers

The extension of the available spectral range covered by quantum cascade lasers (QCL) would allow one to address new molecular spectroscopy applications, in particular in the long wavelength domain of the mid-infrared. We report in this paper the realization of distributed feedback (DFB) QCLs, made of InAs and AlSb, that demonstrated a continuous wave (CW) and a single mode emission at a wavelength of 17.7 µm, with output powers in the mW range. This is the longest wavelength for DFB QCLs, and for any QCLs or semiconductor lasers in general, operating in a CW at room temperature.

scholarly journals High Resolution Terahertz Spectroscopy with Quantum Cascade Lasers

2013 ◽  
Vol 34 (5-6) ◽  
pp. 325-341 ◽  
Author(s):  
H.-W. Hübers ◽  
R. Eichholz ◽  
S. G. Pavlov ◽  
H. Richter
Keyword(s):  
High Resolution ◽  
Terahertz Spectroscopy ◽  
Quantum Cascade Lasers ◽  
Quantum Cascade ◽  
Cascade Lasers

scholarly journals Sensors for Terahertz Spectroscopy and Quantum Cascade Lasers

2015 ◽  
Vol 10 (1) ◽  
pp. 22-25
Author(s):  
Susanne Dröscher ◽  
Manfred Gonnert
Keyword(s):  
Terahertz Spectroscopy ◽  
Quantum Cascade Lasers ◽  
Quantum Cascade ◽  
Cascade Lasers

High-precision molecular spectroscopy in the mid-infrared using quantum cascade lasers

2019 ◽  
Vol 125 (1) ◽  
Author(s):  
Simone Borri ◽  
Giacomo Insero ◽  
Gabriele Santambrogio ◽  
Davide Mazzotti ◽  
Francesco Cappelli ◽  
...  
Keyword(s):  
High Precision ◽  
Quantum Cascade Lasers ◽  
Molecular Spectroscopy ◽  
Mid Infrared ◽  
Quantum Cascade ◽  
Cascade Lasers
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