Field distribution in waveguide of mid-infrared strain-compensated InAlAs/InGaAs/InP quantum cascade laser
Sign Up to like & getrecommendations! Published in 2017 at "Optical and Quantum Electronics"
DOI: 10.1007/s11082-017-0894-x
Abstract: In this paper we present calculated mode distributions in double-trench mesa waveguide of a quantum cascade laser (QCL) and far-field distributions of the QCL beam—both calculated and experimental. We have computed electric field distribution in… read more here.
Keywords: field; distribution; field distribution; cascade laser ... See more keywords
Recent Advances of Efficient Design of Terahertz Quantum-Cascade Lasers
Sign Up to like & getrecommendations! Published in 2020 at "Plasmonics"
DOI: 10.1007/s11468-020-01295-4
Abstract: Terahertz (THz) quantum cascade lasers (QCLs) are electrically pumped and heterostructure based semiconductor laser sources with intersubband transitions of electrons in different layers of the quantum wells and barriers. The THz QCLs have high output… read more here.
Keywords: cascade lasers; terahertz; quantum cascade; thz ... See more keywords
Simultaneous detection of ambient methane, nitrous oxide, and water vapor using an external-cavity quantum cascade laser
Sign Up to like & getrecommendations! Published in 2018 at "Atmospheric Environment"
DOI: 10.1016/j.atmosenv.2018.07.001
Abstract: Abstract A compact laser-based absorption sensor system associated with a 152-m path length absorption cell for simultaneous second harmonic (2f) detection of atmospheric nitrous oxide (N2O), methane (CH4), and water vapor (H2O) is presented. An… read more here.
Keywords: cavity quantum; detection; nitrous oxide; water vapor ... See more keywords
Synchronization of quantum cascade lasers with mutual optoelectronic coupling
Sign Up to like & getrecommendations! Published in 2018 at "Chinese Journal of Physics"
DOI: 10.1016/j.cjph.2018.03.021
Abstract: Abstract In this study, the operating conditions to obtain complete synchronization in two quantum cascade lasers with mutual optoelectronic coupling are analyzed. Synchronization properties and the effect of parameter mismatches on synchronization quality are investigated.… read more here.
Keywords: optoelectronic coupling; quantum cascade; lasers mutual; synchronization ... See more keywords
Dynamic modeling of a terahertz quantum cascade laser based on difference frequency generation
Sign Up to like & getrecommendations! Published in 2018 at "Optik"
DOI: 10.1016/j.ijleo.2017.11.126
Abstract: Abstract In this paper, we consider a terahertz quantum cascade laser based on difference frequency generation and investigate theoretically the transient dynamics of its quantum cascade laser mid-infrared pumps and terahertz wave generated via intra-cavity… read more here.
Keywords: frequency generation; quantum cascade; difference frequency;
Sensitivity of heterointerfaces on emission wavelength of quantum cascade lasers
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Crystal Growth"
DOI: 10.1016/j.jcrysgro.2016.11.029
Abstract: Abstract The measured emission wavelengths of AlInAs/GaInAs/InP quantum cascade lasers (QCLs) grown by metal organic vapor phase epitaxy (MOVPE) have been reported to be ~ 0.5–1 µm longer than the designed QCL wavelength. This work clarifies… read more here.
Keywords: alinas gainas; emission wavelength; cascade lasers; quantum cascade ... See more keywords
High peak power 16 μm InP-related quantum cascade laser
Sign Up to like & getrecommendations! Published in 2017 at "Opto-electronics Review"
DOI: 10.1016/j.opelre.2017.06.007
Abstract: Abstract In this paper ∼16 μm-emitting multimode InP-related quantum cascade lasers are presented with the maximum operating temperature 373 K, peak and average optical power equal to 720 mW and 4.8 mW at 303 K, respectively, and the characteristic temperature… read more here.
Keywords: related quantum; inp related; lasers sio; quantum cascade ... See more keywords
Passive synthesis rules of coupled-cavity quantum cascade lasers
Sign Up to like & getrecommendations! Published in 2019 at "Opto-Electronics Review"
DOI: 10.1016/j.opelre.2019.08.001
Abstract: Abstract A new approach to passive electromagnetic modelling of coupled–cavity quantum cascade lasers is presented in this paper. One of challenges in the rigorous analysis of such eigenvalue problem is its large size as compared… read more here.
Keywords: cavity quantum; coupled cavity; quantum cascade;
Effects of propagation on the population dynamics of terahertz quantum cascade lasers
Sign Up to like & getrecommendations! Published in 2019 at "Superlattices and Microstructures"
DOI: 10.1016/j.spmi.2019.106315
Abstract: Abstract The spatial and temporal dependence of population dynamics caused by ultrafast π laser pulses are studied by Maxwell-Bloch equations in terahertz quantum cascade lasers with and without propagation effects. It is shown that the… read more here.
Keywords: effects propagation; population dynamics; terahertz quantum; cascade lasers ... See more keywords
3.5 THz quantum-cascade laser emission from dual diagonal feedhorns
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Microwave and Wireless Technologies"
DOI: 10.1017/s175907871900028x
Abstract: Abstract Antenna-pattern measurements obtained from a double-metal supra-terahertz-frequency (supra-THz) quantum cascade laser (QCL) are presented. The QCL is mounted within a mechanically micro-machined waveguide cavity containing dual diagonal feedhorns. Operating in continuous-wave mode at 3.5… read more here.
Keywords: thz quantum; supra thz; quantum cascade; dual diagonal ... See more keywords
Quantum Cascade Laser-Based Vibrational Circular Dichroism Augmented by a Balanced Detection Scheme
Sign Up to like & getrecommendations! Published in 2022 at "Analytical Chemistry"
DOI: 10.1021/acs.analchem.2c01269
Abstract: Vibrational circular dichroism (VCD) constitutes a powerful technique, enabling the determination of the absolute configuration of molecules without the need for specialized reagents. While delivering critical information, VCD signals commonly are several orders of magnitude… read more here.
Keywords: quantum cascade; vibrational circular; cascade laser; balanced detection ... See more keywords