Results 61 to 70 of about 263,472 (374)

Underwater power compensated white light source based on synthetic white laser

open access: yesHeliyon, 2023
The semiconductor white laser light source is used as a light source for underwater illumination. The required standard color temperature of white light is obtained at the underwater target surface.
Wei-Yu Cai   +6 more
doaj  

Laser Short-Pulse Effect on Thermodiffusion Waves of Fractional Heat Order for Excited Nonlocal Semiconductor

open access: yesAdvances in Condensed Matter Physics, 2022
In this work, the thermal effect of a laser pulse is taken into account when mechanical-thermodiffusion (METD) waves are studied. The nonlocal semiconductor material is used when interference between holes and electrons occurs.
Areej A. Almoneef   +4 more
doaj   +1 more source

Fermi-Level Tuning of G-Doped Layers

open access: yesNanomaterials, 2021
Recently, geometry-induced quantum effects were observed in periodic nanostructures. Nanograting (NG) geometry significantly affects the electronic, magnetic, and optical properties of semiconductor layers.
Avto Tavkhelidze   +3 more
doaj   +1 more source

Coherent optical control of spin-spin interaction in doped semiconductors

open access: yes, 2004
We provide a theory of laser-induced interaction between spins localized by impurity centers in a semiconductor host. By solving exactly the problem of two localized spins interacting with one itinerant exciton, an analytical expression for the induced ...
C. Piermarocchi   +5 more
core   +1 more source

Amplitude-phase decorrelation: a method for reducing intensity noise in semiconductor lasers [PDF]

open access: yes, 1991
It has been shown that the method of amplitude-phase decorrelation can reduce the fundamental intensity noise floor of semiconductor laser light over a wide bandwidth by the ratio 1/(1+α^2), where α is the linewidth enhancement factor.
Newkirk, Michael A., Vahala, Kerry J.
core   +1 more source

Wearable Haptic Feedback Interfaces for Augmenting Human Touch

open access: yesAdvanced Functional Materials, EarlyView.
The wearable haptic feedback interfaces enhance user experience in gaming, social media, biomedical instrumentation, and robotics by generating tactile sensations. This review discusses and categorizes current haptic feedback interfaces into force, thermal, and electrotactile stimulation‐based haptic feedback interfaces, elucidating their current ...
Shubham Patel   +3 more
wiley   +1 more source

Fast Reconfigurable SOA-Based Wavelength Conversion of Advanced Modulation Format Data

open access: yesApplied Sciences, 2017
We theoretically analyze the phase noise transfer issue between the pump and the wavelength-converted idler for a nondegenerate four-wave mixing (FWM) scheme, as well as study the vector theory in nonlinear semiconductor optical amplifiers (SOAs), in ...
Yi Lin   +5 more
doaj   +1 more source

Manifestation of anomalous Floquet states with longevity in dynamic fractional Stark ladder with high AC electric fields

open access: yes, 2015
We examine a resonance structure of Floquet state in dynamic fractional Stark ladder (DFSL) realized in biased semiconductor superlattices driven by a terahertz cw laser on the basis of the R-matrix Floquet theory.
Hino, Ken-ichi   +3 more
core   +1 more source

Inverse scattering approach to multiwavelength Fabry-Pérot laser design [PDF]

open access: yes, 2006
A class of multiwavelength Fabry-Pérot lasers is introduced where the spectrum is tailored through a patterning of the cavity effective index. The cavity geometry is obtained using an inverse scattering approach and can be designed such that the spacing ...
Amann, A.   +9 more
core   +3 more sources

Off‐Stoichiometry Engineering of the Electrical and Optical Properties of SrNbO3 Using Oxide Molecular Beam Epitaxy

open access: yesAdvanced Functional Materials, EarlyView.
The plasma edge of transparent conducting oxide SrNbO3 shifts from ∼2 eV in the visible range to 1.37 eV in the near‐infrared region by off‐stoichiometry using the vacancy sites as quasi‐substitutional virtual elements. This work advances the stoichiometry engineering of perovskite oxides using oxide molecular beam epitaxy, allowing synthesis beyond ...
Jasnamol Palakkal   +11 more
wiley   +1 more source

Home - About - Disclaimer - Privacy