Results 101 to 110 of about 308,424 (390)
Advanced Functional Materials, EarlyView.EuSc₂Te₄, an antiferromagnetic semiconductor, exhibits a nonlinear Hall effect (NLHE) characterized by quadratic current–voltage behavior. Combined experimental and theoretical studies reveal that this NLHE is linked to its antiferromagnetism and involves contributions from the quantum metric.
Seng Huat Lee +15 more
wiley +1 more source
Laser gain spectra of quantum wells and multiplasmon optical transitions
Moldavian Journal of the Physical Sciences, 2005 A novel multi-plasmon concept of a light absorption and laser gain of low-dimensional structures are comprehensively discussed. A Generalized Semiconductor Bloch Equations are derived with account of multi-plasmon optical transitions ...
Gurău, Virginia
doaj
Pump-probe detuning dependence of four-wave mixing pulse in an SOA [PDF]
, 2007 Four-wave mixing (FWM) between 2-ps pulses in a multiquantum-well semiconductor optical amplifier (SOA) is presented. The conjugate pulses are fully characterized using the frequency-resolved optical gating technique.
Barry, Liam P. +2 more
core +1 more source
Advanced Functional Materials, EarlyView.This work presents π–conjugated polymers based on dihydropyrazine (DHP) and ethylenedioxythiophene (EDOT), developed to produce highly conductive, flexible films for printed electronics. By optimizing the DHP and EDOT ratio, strong and compact π–π stacking is achieved, resulting in polymer films with conductivities up to 1700 S cm−1 under ambient ...
Sung Jae Jeon +3 more
wiley +1 more source
Time-Resolved Studies of a Rolled-Up Semiconductor Microtube Laser
, 2009 We report on lasing in rolled-up microtube resonators. Time-resolved studies on these semiconductor lasers containing GaAs quantum wells as optical gain material reveal particularly fast turn-on-times and short pulse emissions above the threshold.
Fehringer, S. +8 more
core +1 more source
Method for measuring reflectance of semiconductor disk laser gain element under optical pump excitation [PDF]
, 2011 We present a new measurement method for measuring the spectral reflectance of a semiconductor disk laser gain element under optical pumping, providing valuable information on the spectral dependence of gain under close-to-normal operating ...
Bellancourt +5 more
core +1 more source
High‐Entropy Liquid Metal Process for Transparent Ultrathin p‐Type Gallium Oxide
Advanced Functional Materials, EarlyView.This work introduces a doping strategy for harvesting ultrathin Ga oxide layers using a multi‐elemental Ga‐based liquid metal alloy. The incorporation of trivalent In metal into the self‐limiting oxide formed on the alloy's surface is enabled by the existence of atomically dispersed Pt, Au, and Pd.
Laetitia Bardet +14 more
wiley +1 more source
Optical gain in GaAsBi/GaAs quantum well diode lasers
Scientific Reports, 2016 Electrically pumped GaAsBi/GaAs quantum well lasers are a promising new class of near-infrared devices where, by use of the unusual band structure properties of GaAsBi alloys, it is possible to suppress the dominant energy-consuming Auger recombination ...
I. Marko +8 more
semanticscholar +1 more source
Optical Spectral Singularities as Threshold Resonances
, 2011 Spectral singularities are among generic mathematical features of complex scattering potentials. Physically they correspond to scattering states that behave like zero-width resonances.
Mostafazadeh, Ali
core +1 more source
Advanced Functional Materials, EarlyView.Low‐dimensional halide perovskite thin films, (BA)2(MA)n‐1PbnBr3n+1 (n = 1, 2), exhibit both semiconducting and ferroelectric properties, enabling mechanical and light energy harvesting. Using Cr/Cr₂O₃ or PCBM as barrier layers ensures reproducible ferroelectricity.
Raja Sekhar Muddam +8 more
wiley +1 more source