Results 41 to 50 of about 1,396,787 (284)
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
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
Interband Cascade and Quantum Cascade Ring Lasers
, 2020 Quantum cascade and interband cascade lasers are fabricated into surface and substrate emitting coherent light sources and detectors. We report about latest achievements in terms of power, temperature and dynamic performance of on-chip sensing ...
Andrews, Aaron Maxwell +6 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
Anti-correlation phenomena in quantum cascade laser frequency combs
APL Photonics, 2023 In quantum cascade laser frequency combs, the intensity distribution of the optical spectrum can be split into two well-separated lobes of longitudinal modes that, even when far apart, have a common phase relation and preserve equal frequency separation.
B. Chomet +10 more
doaj +1 more source
Advanced Functional Materials, EarlyView.The physical realization of artificial neurons is a critical challenge for energy‐efficient neuromorphic computing. This review presents a comprehensive analysis of the evolution of artificial neuron implementations from conventional CMOS to emerging post‐CMOS technologies.
Kannan Udaya Mohanan +4 more
wiley +1 more source
2.7 μm short-wavelength InAs/AlAsSb quantum cascade detector
, 2020 Quantum cascade detectors (QCDs) are unipolar intersubband devices, which operate as photovoltaic detectors at room-temperature. The light is detected via optical transitions between two bound levels in a superlattice-like heterostructure in the mid- and
Strasser, Gottfried +8 more
core +4 more sources
Yb:tungstate waveguide lasers [PDF]
, 2011 Lasers find a wide range of applications in many areas including photo-biology, photo-chemistry, materials processing, imaging and telecommunications. However, the practical use of such sources is often limited by the bulky nature of existing systems.
Bain, Fiona Mair
core +2 more sources
High Power Mid-Infrared Quantum Cascade Lasers Grown on GaAs
Photonics, 2022 The motivation behind this work is to show that InP-based intersubband lasers with high power can be realized on substrates with significant lattice mismatch.
Steven Slivken, Manijeh Razeghi
doaj +1 more source
An Adaptive Inhibitory WSe2 Transistor for Retinomorphic In‐Sensor Image Processing
Advanced Functional Materials, EarlyView.Conventional retinomorphic devices typically require deliberate gate‐bias tuning for each illumination condition. In this paper, we demonstrate an adaptive inhibitory WSe2 transistor that uses photo‐induced regime shift between the subthreshold and accumulation modes to achieve decision‐free, intensity‐adaptive image processing within a single pixel ...
Juhwan Baek +12 more
wiley +1 more source