Results 61 to 70 of about 3,950 (203)

Enhanced Chaos Generation in Mid-Infrared Interband Cascade Lasers Under Amplitude-Modulated Optical Injection

Photonics
We numerically investigate the dynamics of an interband cascade laser (ICL) subjected to amplitude-modulated optical injection from a directly modulated master ICL.
Hong Han, Jiada Xu, Zhiwei Jia, Jianguo Zhang, Mingming Huo, K. Alan Shore   +5 more
doaj   +1 more source

Performance Enhancement of Methane Detection Using a Novel Self-Adaptive Mid-Infrared Absorption Spectroscopy Technique

IEEE Photonics Journal, 2018
An electrical-domain self-adaptive mid-infrared absorption spectroscopy for methane detection based on an interband cascade laser was demonstrated. By adding noise into the laser drive signal, denoising and sensing performances were evaluated for the ...
Fang Song, Chuantao Zheng, Wanhong Yan, Wei Lin Ye, Yu Zhang, Yiding Wang, Frank K. Tittel   +6 more
doaj   +1 more source

Room temperature interband cascade lasers

Physics Procedia, 2010
AbstractAn analysis of the threshold current densities and differential slope efficiencies in interband cascade lasers with type-II active regions revealed lower Auger recombination rates than anticipated theoretically or using the data from prior experiments. Furthermore, a new design of the waveguide yielded room-temperature internal losses as low as
Kim, M., Canedy, C.L., Kim, C.S., Bewley, W.W., Lindle, J.R., Abell, J., Vurgaftman, I., Meyer, J.R.   +7 more
openaire   +1 more source

Self-Consistent Theory of the Gain Linewidth for Quantum Cascade Lasers

, 2004
The linewidth in intersubband transitions can be significantly reduced below the sum of the lifetime broadening for the involved states, if the scattering environment is similar for both states.
Banit, F, Knorr, A, Lee, SC, Lund University., Wacker, Andreas,   +4 more
core   +1 more source

Frontiers of Bright CEP‐Stable Broadband Infrared Sources

Laser &Photonics Reviews, EarlyView.
Bright CEP‐stable broadband infrared sources push the limits of ultrafast science by delivering exceptional brightness alongside few‐cycle durations and multi‐octave spectral coverage. This review highlights emerging architectures and nonlinear conversion strategies that scale power while preserving phase stability.
Ugaitz Elu, Jens Biegert
wiley   +1 more source

Wavelength selection for laser design in mid-infrared spectroscopy

Frontiers in Photonics
The development of miniaturized tunable laser sources for mid-infrared (MIR) spectroscopy has enabled portable, application-specific analytical devices.
Miriam Aledda, Federico Marini, Bijay Kafle, Mehmet C. Erdem, Pranish Karki, Kristian H. Liland, Boris Zimmermann, Nils K. Afseth, Alessandra Biancolillo, Valeria Tafintseva, Kristin Tøndel, Volha Shapaval, Achim Kohler   +12 more
doaj   +1 more source

Transient response under ultrafast interband excitation of an intrinsic graphene

, 2009
The transient evolution of carriers in an intrinsic graphene under ultrafast excitation, which is caused by the collisionless interband transitions, is studied theoretically.
D. Potter, E. M. Lifshitz, F. T. Vasko, F. T. Vasko, F. T. Vasko, J. Shah, P. N. Romanets, T. Yao   +7 more
core   +1 more source

Photoluminescence quenching mechanisms in type II InAs/GaInSb QWs on InAs substrates [PDF]

, 2016
We would like to acknowledge the National Science Centre of Poland for support within Grant No. 2014/15/B/ST7/04663.Optical properties of AlSb/InAs/GaInSb/InAs/AlSb quantum wells (QWs) grown on an InAs substrate were investigated from the point of view ...
Dallner, M., Dyksik, M., Höfling, S., Kamp, M., Kurka, M., Misiewicz, J., Motyka, M., Ryczko, K., Sęk, G.   +8 more
core   +2 more sources

Electromagnetic Quasinormal Modes: A Foundational Framework for Describing Fano Resonances of Extinction Spectra

Nanophotonics, Volume 15, Issue 9, 13 May 2026.
An ab initio electromagnetic framework links quasinormal modes to Fano resonances in extinction spectra. Analytical expressions for the Fano asymmetry and intensity parameters are derived from overlap integrals, enabling rapid spectral reconstruction and physical interpretation.
Mikhail Bochkarev, Nikolay Solodovchenko, Kirill Samusev, Mikhail Limonov, Tong Wu, Philippe Lalanne   +5 more
wiley   +1 more source

High-concentration methane and ethane QEPAS detection employing partial least squares regression to filter out energy relaxation dependence on gas matrix composition

Photoacoustics, 2022
A quartz enhanced photoacoustic spectroscopy (QEPAS) sensor capable to detect high concentrations of methane (C1) and ethane (C2) is here reported. The hydrocarbons fingerprint region around 3 µm was exploited using an interband cascade laser (ICL).
Giansergio Menduni, Andrea Zifarelli, Angelo Sampaolo, Pietro Patimisco, Marilena Giglio, Nicola Amoroso, Hongpeng Wu, Lei Dong, Roberto Bellotti, Vincenzo Spagnolo   +9 more
doaj   +1 more source