Results 31 to 40 of about 15,014 (299)
High-Frequency Modulation Spectroscopy with a THz Quantum-Cascade Laser
, 2013 A terahertz absorption spectrometer with a quantum-cascade laser (QCL) for high-resolution molecular spectroscopy is realized. The spectrometer is based on highfrequency (up to 50 MHz) modulation of the QCL frequency.
H.-W. Hubers +11 more
core +1 more source
Sub-terahertz and terahertz generation in long-wavelength quantum cascade lasers
Nanophotonics, 2019 Terahertz quantum cascade laser sources with intra-cavity non-linear frequency mixing are the first room-temperature electrically pumped monolithic semiconductor sources that operate in the 1.2–5.9 THz spectral range.
Fujita Kazuue +4 more
doaj +1 more source
Molecular spectroscopy with a multimode THz quantum-cascade laser
, 2011 A terahertz absorption spectrometer for highresolution molecular spectroscopy is realized. The spectrometer is based on a multimode quantum-cascade laser. The design and performance of the spectrometer are presented.
A. D. Semenov +19 more
core +1 more source
, 2022 Quantum Cascade Lasers (QCLs) represent a significant advancement in laser technology, enabling a broad range of applications due to their unique operational principles. Unlike traditional semiconductor lasers that rely on inter-band transitions, QCLs use intersubband transitions within quantum wells, allowing for emission in the mid-infrared and ...
openaire +3 more sources
Superlattice Structure of Quantum Cascade Lasers: Structural and Morphological Effects of AsH₃ Flow
Cumhuriyet Science JournalThe quantum cascade lasers (QCLs) have been widely used in mid-infrared applications due to their high power, efficiency, and design flexibility. The InP-based quantum cascade lasers, particularly those utilizing In 0.53 Ga 0.47 As/In0.52Al0.48As ...
Merve Nur Koçak, İlkay Demir
doaj +1 more source
Gain and loss in quantum cascade lasers [PDF]
Physica B: Condensed Matter, 2002 We report gain calculations for a quantum cascade laser using a fully self-consistent quantum mechanical approach based on the theory of nonequilibrium Green functions. Both the absolute value of the gain as well as the spectral position at threshold are in excellent agreement with experimental findings for T=77 K.
Wacker, A., Lee, S. -C.
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Quantum simulating electron transport in quantum cascade laser structures
, 2020 We propose to use ultracold-fermionic atoms in optical lattices to quantum-simulate electronic transport in quantum-cascade-laser structures.
Minardi F. +6 more
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Plasmonic quantum cascade laser antenna [PDF]
2007 Quantum Electronics and Laser Science Conference, 2007 We demonstrate the plasmonic quantum cascade laser antenna, that can confine mid- infrared radiation beyond the diffraction limit, by integrating gold optical antennas on the laser facet.
Nanfang Yu +4 more
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Submonolayer uniformity of type II InAs/GaInSb W-shaped quantum wells probed by full-wafer photoluminescence mapping in the mid-infrared spectral range [PDF]
, 2015 The work has been supported by Project Widelase (No. 318798) of the 7-th Framework Program of the European Commission. Date of Acceptance: 06/10/2015The spatial uniformity of GaSb- and InAs substrate-based structures containing type II quantum wells was ...
Jan Misiewicz +15 more
core +1 more source
Advanced Functional Materials, EarlyView.DNA strands are employed both as dynamic linkers and nanoscale templates for the integration of Ag2S nanoparticles on MoS2, which in turn imparted photothermal responsiveness; this feature permits the selective cargo (fluorophore, quantum dots or an enzyme) release from the MoS2 surface in response to local heat induced by light irradiation.
Kai Chen +3 more
wiley +1 more source