Results 21 to 30 of about 5,106,399 (296)

Broadband Bidirectional and Multi-Channel Unidirectional Acoustic Insulation by Mode-Conversion Phased Units

open access: yesFrontiers in Materials, 2021
The technique of sound insulation has a wide range of potential applications in environment noise control and architectural acoustics. The rapid development of acoustic artificial materials has provided alternative solutions to design sound insulation ...
Jia-he Chen   +10 more
doaj   +1 more source

Effect of Dispersion Slope of Highly Nonlinear Fibre on The Performance of Self Phase Modulation Based 2R-Optical Regenerator [PDF]

open access: yes, 2010
In this paper we numerically investigate the effect of dispersion slope of the highly nonlinear fibre on the performance of Self Phase Modulation based 2R-optical regenerators.
Salman Ghafoor   +3 more
core   +2 more sources

Cross-phase modulation in rubidium-87 [PDF]

open access: yes, 2009
This thesis explores the theoretical foundations of cross-phase modulation (XPM) between optical fields in the N-configuration atom. This is the process by which the refractive index experienced by one field can be modulated by controlling the intensity
Sinclair, Gary F.
core   +2 more sources

Tunable Multiple Surface Plasmonic Bending Beams into Single One by Changing Incident Light Wavelength

open access: yesPhotonics, 2023
Controllable surface plasmonic bending beams (SPBs) with propagating along bending curves have a wide range of applications in the fields of fiber sensors, optical trapping, and micro-nano manipulations.
Hang Zhang   +4 more
doaj   +1 more source

Interfaces of Modulated Phases [PDF]

open access: yesPhysical Review Letters, 1997
Numerically minimizing a continuous free-energy functional which yields several modulated phases, we obtain the order-parameter profiles and interfacial free energies of symmetric and non-symmetric tilt boundaries within the lamellar phase, and of interfaces between coexisting lamellar, hexagonal, and disordered phases.
Netz, R., Andelman, D., Schick, M.
openaire   +3 more sources

Programmable Manipulations of Terahertz Beams by Graphene-Based Metasurface With Both Amplitude and Phase Modulations

open access: yesFrontiers in Materials, 2022
Terahertz metasurface with digital, programmable control recently gained considerable attention for its potential applications in high-speed imaging, nondestructive sensing, and wireless communication.
Chenxi Liu   +4 more
doaj   +1 more source

High‐Efficiency Phase and Polarization Modulation Metasurfaces

open access: yesAdvanced Photonics Research, 2022
Use of metasurfaces to control the characteristics of electromagnetic waves is an emerging trend at present. Multifunctional metasurfaces, which can modulate multiple wave parameters, greatly reduce the complexity and enrich the functionality of optical ...
Huan Zhao   +4 more
doaj   +1 more source

Dynamic Reflection Phase Modulation in Terahertz Metamaterial

open access: yesIEEE Photonics Journal, 2019
In order to provide the terahertz metamaterial with dynamic phase modulation capability, a new strategy is proposed. It consists of two different unit cells involving particularly designed metallic concentric circular split ring resonators, both of which
Zeng Yangjian   +4 more
doaj   +1 more source

Engineering Aspheric Liquid Crystal Lenses by Using the Transmission Electrode Technique

open access: yesCrystals, 2020
The transmission electrode technique has been recently proposed as a versatile method to obtain various types of liquid-crystal (LC) lenses. In this work, an equivalent electric circuit and new analytical expressions based on this technique are developed.
José Francisco Algorri   +4 more
doaj   +1 more source

Kerr nonlinearity-assisted quadratic microcomb

open access: yesFrontiers in Physics, 2022
Generation of nonlinear frequency combs in χ(3) optical microresonators has attracted tremendous research interest during the last decade. Recently, realization of the microcomb owing to χ(2) optical nonlinearity in the microresonator promises new ...
Ke Wang   +9 more
doaj   +1 more source

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