Results 11 to 20 of about 30,232 (262)

Novel Optical Kerr Switching Photonic Device Based on Nonlinear Carbon Material

open access: yesMicromachines, 2023
In the context of current communication systems, there is an urgent demand for more efficient and higher-speed optical signal processing technologies.
Ke Wang   +5 more
doaj   +1 more source

Junction Temperature Optical Sensing Techniques for Power Switching Semiconductors: A Review

open access: yesMicromachines, 2023
Recent advancements in power electronic switches provide effective control and operational stability of power grid systems. Junction temperature is a crucial parameter of power-switching semiconductor devices, which needs monitoring to facilitate ...
Ridwanullahi Isa   +4 more
doaj   +1 more source

Actively Tunable Terahertz Switches Based on Subwavelength Graphene Waveguide

open access: yesNanomaterials, 2018
As a new field of optical communication technology, on-chip graphene devices are of great interest due to their active tunability and subwavelength scale.
Zhongyi Guo   +6 more
doaj   +1 more source

Nonlinearity-Tuned Optical Spin-Orbit Interaction of Graphene-Wrapped Nanoparticles

open access: yesIEEE Photonics Journal, 2022
Nonlinear control of light-matter interaction plays an important role in various optical phenomena, including spin-orbit interaction of light. In this paper, we demonstrate that the spin-orbit interaction of graphene-wrapped nanoparticles can be tuned by
Xiaoying Gu   +5 more
doaj   +1 more source

A study on optical properties of Sb2Se3 thin films and resistive switching behavior in Ag/Sb2Se3/W heterojunctions

open access: yesResults in Physics, 2019
In this study, optical phase change property and bipolar memristive switching behavior were systematically characterized in Sb2Se3 thin films with different annealing temperatures and Ag/Sb2Se3/W heterojunction, respectively.
Chunmin Liu   +8 more
doaj   +1 more source

Integrated Mach–Zehnder Interferometer Based on Liquid Crystal Evanescent Field Tuning

open access: yesCrystals, 2019
In this work, the performance of a Mach−Zehnder interferometer manufactured in silicon nitride with a liquid crystal cladding is studied. The device consists of two multi-mode interference couplers linked by two rectangular waveguides, the cladding
Manuel Caño-García   +5 more
doaj   +1 more source

Light Propagation in Confined Nematic Liquid Crystals and Device Applications

open access: yesApplied Sciences, 2021
Liquid crystals are interesting linear and nonlinear optical materials used to make a wide variety of devices beyond flat panel displays. Liquid crystalline materials can be used either as core or as cladding of switchable/reconfigurable waveguides with ...
Antonio d’Alessandro, Rita Asquini
doaj   +1 more source

MEMS Technology for Optical Switching

open access: yesWalailak Journal of Science and Technology, 2012
Over the last ten years, microelectromechanical systems (MEMS) devices have received attention in many application areas such microwave, wireless, and optical networks. Especially in optical networks, MEMS technology is employed to provide the advantages
Kornkamol THAKULSUKANANT
doaj   +1 more source

LCoS-Based Wavelength-Selective Switch for Future Finer-Grid Elastic Optical Networks Capable of All-Optical Wavelength Conversion

open access: yesIEEE Photonics Journal, 2017
A finer-grid wavelength-selective switch (WSS) based on liquid crystal on silicon is proposed, fabricated, and demonstrated. Based on the cost-effective method, namely combined lenses technique, the focal length is increased so that both the bandwidth ...
Dequan Xie   +6 more
doaj   +1 more source

Optimizing photoactivation of PA‐mCherry for optical pooled CRISPR screens

open access: yesFEBS Open Bio, EarlyView.
Photoactivatable PA‐mCherry finds widespread use to optically tag individual cells. However, confocal 405 nm UV laser‐scanning (normal scan) is much less efficient than widefield UV illumination, limiting the use of PA‐mCherry on confocal instruments. We remedy this limitation by reporting that rapid and repeated confocal scanning with a low‐intensity,
Sravasti Mukherjee   +3 more
wiley   +1 more source

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