Results 91 to 100 of about 103,028 (311)
Cooperative spontaneous emission of excitons in the semiconductor microcavity
, 2000 We have studied the spontaneous emission of polarized excitons in the GaInP/AlGaInP VCSEL from 30K to room temperature. It is observed that the spontaneous emission peak enters and leaves the resonant regime.
Liu S Chinese Academe Inst Semicond Natl Optoelect Integrat Lab Beijing 100083 Peoples R China. +3 more
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Hybrid Quantum Well/Quantum Dot Structure for Broad Spectral Bandwidth Emitters [PDF]
, 2014 This thesis details a hybrid quantum well (QW)/quantum dot (QD) active element for an application in broadband source. First of all, a literature review on the fundamentals of optical coherence tomography (OCT) and superluminescent light emitting ...
Chen, Siming
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Advanced Functional Materials, EarlyView.A reconfigurable RRAM platform utilizing thermally pre‐formed filaments (TPFs) is developed to realize robust hardware security. By exploiting the thermodynamic stochasticity of TPFs, exceptionally reliable physically unclonable functions (PUFs) are achieved.
Seongbin Kwon +4 more
wiley +1 more source
, 2013 We extend previous analyses of spontaneous emission in a quantum free electron laser (QFEL) and competition between spontaneous and coherent QFEL emission to include a broad distribution of photon frequencies and momenta appropriate for spontaneous ...
Bonifacio, Rodolfo, Robb, Gordon
core +1 more source
Advanced Functional Materials, EarlyView.Redox dual‐defects (Cs substitution and O vacancies) in 2D hydrated WO3 steer O2 activation toward selective singlet oxygen evolution. WO‐CO achieves 8.6–15.8 times higher 1O2 production than single‐defect or pristine catalysts, enabling efficient pollutant mineralization via a pathway‐selective photocatalytic mechanism.
Sheng‐Qi Guo +8 more
wiley +1 more source
AIP Advances, 2017 In this paper, an experimental approach to acquiring true spontaneous emission rate of optically-pumped InGaAs/GaAs quantum-well laser structure is described. This method is based on a single edge-emitting laser chip with simple sample processing.
Q.-N. Yu +8 more
doaj +1 more source
Quenching of spontaneous emission through interference of incoherent pump processes [PDF]
, 2003 Journals published by the American Physical Society can be found at http://publish.aps.org/We investigate the steady-state spontaneous emission of a V-type three-level atom, with the coherence between the two upper levels modified and controlled via ...
Zubairy, M. Suhail +3 more
core +1 more source
Review of Thermally Activated Twisted Coiled Polymer Actuators: A Materials Science Perspective
Advanced Functional Materials, EarlyView.Thermally activated twisted and coiled polymer actuators (TCPAs) combine lightweight design, large deformation, and scalable fabrication for soft robotic and wearable applications. This review connects polymer structure, processing history, helix geometry, and thermomechanical characterization to actuator performance, highlighting current challenges in
Nadja Schenk +3 more
wiley +1 more source
Spontaneous Emission of an Excited Atom in a Dusty Unmagnetized Plasma Medium
Advances in Materials Science and Engineering, 2014 Investigation of spontaneous decay of an excited atom in dusty unmagnetized plasma is presented in this paper. The transverse contribution to the decay rate is normally associated with spontaneous emission.
Naser Alinejad, Noushin Pishbin
doaj +1 more source
Size limit and spontaneous emission factor for equilateral triangle semiconductor microlasers
, 2002 The size of equilateral triangle resonator (ETR) needed for confining the fundamental mode is investigated by the total reflection condition of mode light rays and the FDTD numerical simulation.
Huang YZ +3 more
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