Results 61 to 70 of about 52,939 (282)
Monolithic, Optically Coupled, Multi-Section Mid-IR Quantum Cascade Lasers
Photonics, 2021 Mid-infrared (mid-IR λ ≈ 3–12 μm), single-mode-emission Quantum Cascade Lasers (QCLs) are of significant interest for a wide range of applications, especially as the laser sources are chosen for laser absorption spectroscopy. In this work, we present the
Kamil Pierściński +6 more
doaj +1 more source
Towards automated design of quantum cascade lasers [PDF]
, 2005 We present an advanced technique for the design and optimization of GaAs/AlGaAs quantum cascade laser structures. It is based on the implementation of the simulated annealing algorithm with the purpose of determining a set of design parameters that ...
Aleksandra Mirčetić +8 more
core +1 more source
Advanced Functional Materials, EarlyView.Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner +14 more
wiley +1 more source
Coherent quantum cascade laser micro-stripe arrays
AIP Advances, 2011 We have fabricated InP-based coherent quantum cascade laser micro-stripe arrays. Phase-locking is provided by evanescent coupling between adjacent stripes. Stripes are buried into semi-insulating iron doped InP.
G. M. de Naurois +5 more
doaj +1 more source
Simulated [111] Si-SiGe terahertz quantum cascade laser [PDF]
, 2008 The prospect of developing a silicon laser has long been an elusive goal, mainly due to the indirect band gap and large effective carrier masses. We present a design for a terahertz intersubband laser grown on the [111] crystal plane and simulate ...
Ikonic, Z. +3 more
core +1 more source
Advanced Functional Materials, EarlyView.This article presents a photo‐responsive nanoparticle platform that precisely triggers copper‐dependent cuproptotic cell death in (drug‐resistant) cancer cells. The system remains stable and inactive in the dark but releases cytotoxic species upon red‐light irradiation, achieving potent activity in drug‐resistant breast cancer cells.
Ricarda Zimmermann +2 more
wiley +1 more source
Quantum-mechanical wavepacket transport in quantum cascade laser structures
, 2006 We present a viewpoint of the transport process in quantum cascade laser structures in which spatial transport of charge through the structure is a property of coherent quantum-mechanical wavefunctions.
A. Wacker +7 more
core +1 more source
Dynamic modeling of Terahertz Quantum cascade lasers [PDF]
, 2011 In this paper, the influence of the simplifications made in the four-equation-based set of rate equations describing the dynamic behavior of a Quantum Cascade Laser (QCL) is studied.
Destic, Fabien +3 more
core +1 more source
Photon Avalanching Nanoparticles: The Next Generation of Upconverting Nanomaterials?
Advanced Functional Materials, EarlyView.This Perspective outlines the mechanistic foundations that enable photon‐avalanche (PA) behavior in lanthanide nanomaterials and contrasts them with emerging application spaces and forward‐looking design strategies. By bridging threshold engineering, energy‐transfer dynamics, and materials engineering, we provide a coherent roadmap for advancing the ...
Kimoon Lee +7 more
wiley +1 more source
Terahertz Radar Cross Section Characterization using Laser Feedback Interferometry with a Quantum Cascade Laser [PDF]
, 2015 Radar cross section (RCS) measurements of complex, large objects are usually performed on scale models so that the measurement is carried out in a well-controlled environment.
A. Valavanis +19 more
core +1 more source