Results 21 to 30 of about 176,788 (276)

Energy-efficient domain wall motion governed by the interplay of helicity-dependent optical effect and spin-orbit torque [PDF]

open access: yes, 2019
Spin-orbit torque provides a powerful means of manipulating domain walls along magnetic wires. However, the current density required for domain wall motion is still too high to realize low power devices.
Hehn, Michel   +8 more
core   +2 more sources

Optical packet switching over arbitrary physical topologies using the Manhattan street network : an evolutionary approach [PDF]

open access: yes, 2001
Published in "Towards an Optical Internet", A. Jukan (Ed.). Optical packet switching over arbitrary physical topologies typically mandates complex routing schemes and the use of buffers to resolve the likely contentions.
Cotter, David   +2 more
core   +1 more source

A universal optical all-fiber omnipolarizer [PDF]

open access: yes, 2012
Wherever the polarization properties of a light beam are of concern, polarizers and polarizing beamsplitters (PBS) are indispensable devices in linear-, nonlinear-and quantum-optical schemes.
A., Picozzi   +9 more
core   +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

A novel approach towards two-photon absorption based detectors [PDF]

open access: yes, 2003
Summary: We have demonstrated that the inherent inefficiency of the TPA process in semiconductors can be overcome by incorporating the semiconductor in a microcavity structure.
Barry, Liam P.   +7 more
core   +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

Broadband and ultrafast all-optical switching based on transition metal carbide

open access: yesNanophotonics, 2021
Ultrafast all-optical switches have attracted considerable attention for breaking through the speed limitation of electric devices. However, ultrafast and high-efficiency all-optical switches based on two-dimensional (2D) materials can be achieved due to
Wang Cong   +7 more
doaj   +1 more source

DESIGN AND ANALYSIS OF OPTICAL SWITCH FOR DATA CENTER NETWORKS INCORPORATING ACO-OFDM WITH PAPR REDUCTION [PDF]

open access: yesJournal of Engineering Science and Technology, 2018
Currently optical data centers heavily rely on electronics for information transfer. In near future electronic switching will face problem in supporting higher data rates. Therefore, a slow migration from electronic to optical switching has been observed.
RAVI KUMAR, ANURAG TRIPATHI
doaj  

Control of randomly scattered surface plasmon polaritons for multiple-input and multiple-output plasmonic switching devices

open access: yesNature Communications, 2017
Losses of bandwidth are inevitable when interfacing between optical and electronic components. Here the authors present a switching device consisting of a two-dimensional disordered array of nanoholes that can potentially transfer information about 40 ...
Wonjun Choi   +6 more
doaj   +1 more source

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