Results 51 to 60 of about 409,958 (292)

Four-wave mixing and generation of terahertz radiation in an alternating-strain coupled quantum-well structure [PDF]

open access: yes, 1996
We propose a scheme for exciting steady-state tunneling oscillations of an electronic wave packet in a semiconductor coupled quantum-well structure with strain of the opposite polarity in the two wells. A detailed study of the four-wave mixing process in
Paiella, Roberto, Vahala, Kerry J.
core   +1 more source

A 73‐Year‐Old Man With Several Years of Difficulty Climbing Stairs and Frequent Tripping

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT A 73‐year‐old man presented with progressive weakness and atrophy predominantly affecting the distal finger flexors and quadriceps muscles. Electrophysiological studies demonstrated mixed myogenic and neurogenic features. Muscle MRI showed inflammatory changes, and muscle biopsy revealed granulomatous myositis with histologic features ...
Mehmet Can Sari   +3 more
wiley   +1 more source

Detection of infrared light through stimulated four-wave mixing process

open access: yesFrontiers in Quantum Science and Technology, 2022
Infrared optical measurement has a wide range of applications in industry and science, but infrared light detectors suffer from high costs and inferior performance than visible light detectors.
Wei-Hang Zhang   +15 more
doaj   +1 more source

One-way coherent imaging through a distorting medium using four-wave mixing [PDF]

open access: yes, 1982
A proposal and an analysis are presented for imaging through a distorting medium using field multiplication by four-wave ...
Koch, Thomas L., Yariv, Amnon
core   +1 more source

Atomic Four-Wave Mixing: Fermions versus Bosons [PDF]

open access: yesPhysical Review Letters, 2001
Physical Review ...
Moore, M. G., Meystre, Pierre
openaire   +3 more sources

Five‐Year Disease Progression in Synuclein Seeding Positive Sporadic Parkinson's Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To provide a comprehensive description of disease progression in synuclein seeding assay (SAA) positive sporadic Parkinson Disease participants, using Neuronal Synuclein Disease integrated biological and functional impairment staging framework.
Paulina Gonzalez‐Latapi   +19 more
wiley   +1 more source

Reconfigurable Photonic Microwave Filter Based on Four-Wave Mixing

open access: yesIEEE Photonics Journal, 2012
A simple technique to reshape the response of tapped delay line photonic microwave filters is demonstrated. The technique is based on the generation and control of a set of optical carriers by means of four-wave mixing.
Borja Vidal   +2 more
doaj   +1 more source

Four wave mixing spectroscopy of quantum dot molecules

open access: yes, 2007
We study theoretically the nonlinear four wave mixing (FWM) response of an ensemble of coupled pairs of quantum dots (quantum dot molecules). We discuss the shape of the FWM echo signal depending on the parameters of the ensemble: the statistics of ...
Machnikowski, P., Sitek, A.
core   +1 more source

Developmental and Epileptic Encephalopathy due to Biallelic Pathogenic Variants in PIGM

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective PIGM encodes a critical enzyme in the glycosylphosphatidylinositol (GPI)‐anchor biosynthesis pathway. While promoter‐region mutations in PIGM have been associated with a relatively mild phenotype characterized by portal vein thrombosis and absence seizures, recent evidence suggests that coding‐region mutations result in a more severe
Júlia Sala‐Coromina   +11 more
wiley   +1 more source

Four-Wave Mixing Conversion in QD SOA: reservoir effects

open access: yesمجلة علوم ذي قار, 2019
In this paper, it is present a model to simulate Four-wave mixing in quantum dot semiconductor optical amplifier, taking into account the influence of carrier heating at reservoir.
Ahmed H. Flayyih, Riyam H. Ali
doaj   +4 more sources

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