Results 41 to 50 of about 28,891 (190)

Fabrication methods for a quantum cascade photonic crystal surface emitting laser [PDF]

, 2003
Conventional quantum cascade (QC) lasers are intrinsically edge-emitting devices with mode confinement achieved via a standard mesa stripe configuration.
Capasso, F., Cho, A. Y., Colombelli, R., Gmachl, C., Painter, O., Sergent, A. M., Sivco, D. L., Srinivasan, K., Tennant, D. M., Troccoli, M.   +9 more
core   +1 more source

Heterogeneously Integrated Distributed Feedback Quantum Cascade Lasers on Silicon

Photonics, 2016
Silicon integration of mid-infrared (MIR) photonic devices promises to enable low-cost, compact sensing and detection capabilities that are compatible with existing silicon photonic and silicon electronic technologies.
Alexander Spott, Jon Peters, Michael L. Davenport, Eric J. Stanton, Chong Zhang, Charles D. Merritt, William W. Bewley, Igor Vurgaftman, Chul Soo Kim, Jerry R. Meyer, Jeremy Kirch, Luke J. Mawst, Dan Botez, John E. Bowers   +13 more
doaj   +1 more source

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, Ertugrul Cubukcu, Laurent Diehl, Kenneth B. Crozier, Federico Capasso   +4 more
openaire   +1 more source

Nonlinear response of quantum cascade structures [PDF]

, 2012
The gain spectrum of a terahertz quantum cascade laser is analysed by a non equilibrium Green's functions approach. Higher harmonics of the response function were retrievable, providing a way to approach nonlinear phenomena in quantum cascade lasers ...
Andreas Wacker, David O. Winge, Haug H., Martin Lindskog   +3 more
core   +3 more sources

High-Power Mid-Infrared (λ∼3-6 μm) Quantum Cascade Lasers

IEEE Photonics Journal, 2022
The performances of mid-infrared (IR) quantum cascade lasers (QCLs) are now reaching a maturity level that enables a variety of applications which require compact laser sources capable of watt-range output powers with high beam quality.
Luke J. Mawst, Dan Botez
doaj   +1 more source

Robust, frequency-stable and accurate mid-IR laser spectrometer based on frequency comb metrology of quantum cascade lasers up-converted in orientation-patterned GaAs

, 2013
We demonstrate a robust and simple method for measurement, stabilization and tuning of the frequency of cw mid-infrared (MIR) lasers, in particular of quantum cascade lasers.
Ernsting, Ingo, Grisard, Arnaud, Gérard, Bruno, Hansen, Michael G., Lallier, Eric, Schiller, Stephan, Vasilyev, Sergey V.   +6 more
core   +1 more source

Superlattice Structure of Quantum Cascade Lasers: Structural and Morphological Effects of AsH₃ Flow

Cumhuriyet Science Journal
The 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

Terahertz Quantum Cascade Lasers - The Past, Present, and Potential Future [PDF]

, 2015
Since their first demonstration in 2002, the development of terahertz frequency quantum cascade lasers has been extremely rapid. We overview some of the advances that have taken place and which have made the terahertz quantum cascade laser such a ...
Davies, AG, Dean, P, Linfield, EH
core   +1 more source

Self-consistent scattering model of carrier dynamics in GaAs-AlGaAs terahertz quantum-cascade lasers [PDF]

, 2003
Intersubband electron scattering transport in terahertz GaAs–AlGaAs quantum cascade lasers is analyzed, using a full 13-level self-consistent rate equation model.
Harrison, P., Ikonic, Z., Indjin, D., Kelsall, R.W.   +3 more
core   +1 more source

Universal Quasi-Level Parameter for the Characterization of Laser Operation

IEEE Photonics Journal, 2018
A parameter is proposed which classifies the laser operating characteristics according to the quasi-level terminology, i.e., as intermediate behavior between that of an ideal two- and three-level or three- and four-level laser scheme.
Christian Jirauschek
doaj   +1 more source