Results 51 to 60 of about 1,237,711 (248)
IEEE Photonics JournalThe integrated Fabry-Perot (FP) interferometers structure based on four core fiber (FCF) and a helical phase-modulation microdisk (HPMD) structure is proposed.
Yuhan Geng, Shengnan Wu, Sailing He
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Spin-Selected Dual-Wavelength Plasmonic Metalenses
Nanomaterials, 2019 Several novel spin-selected dual-wavelength metalenses have been proposed and investigated based on the plasmonic metasurface consisting of two kinds of rotary rectangle gap nanoantennas (RGN), which are designed based on merging two or four polarity ...
Wei Wang +4 more
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Acoustic Bessel Vortex Beam by Quasi-Three-Dimensional Reflected Metasurfaces
Micromachines, 2021 Vortex beams have a typical characteristic of orbital angular momentum, which provides a new degree of freedom for information processing in remote communication and a form of non-contact manipulation for trapping particles.
Yin Wang +6 more
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Conventional Space-Vector Modulation Techniques versus the Single-Phase Modulator for Multilevel Converters [PDF]
, 2010 Space-vector modulation is a well-suited technique to be applied to multilevel converters and is an important research focus in the last 25 years. Recently, a single-phase multilevel modulator has been introduced showing its conceptual simplicity and
Carrasco Solís, Juan Manuel +6 more
core
, 2017 X-ray phase-contrast imaging has experienced rapid development over the last few decades, and in this technology, the phase modulation strategy of phase-stepping is used most widely to measure the sample's phase signal.
Gao, Kun +6 more
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Geometrical vs wave optics under gravitational waves [PDF]
, 2015 We present some new derivations of the effect of a plane gravitational wave on a light ray. A simple interpretation of the results is that a gravitational wave causes a phase modulation of electromagnetic waves.
Angélil, Raymond, Saha, Prasenjit
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Continuous Phase-Modulated Halftones [PDF]
IEEE Transactions on Image Processing, 2009 A generalization of periodic clustered-dot halftones is proposed, wherein the phase of the halftone spots is modulated using a secondary signal. The process is accomplished by using an analytic halftone threshold function that allows halftones to be generated with controlled phase variation in different regions of the printed page.
Gaurav Sharma, Basak Oztan
openaire +3 more sources
Beam Shaping for Wireless Optical Charging with Improved Efficiency
Crystals, 2021 Optical wireless charging is a nonradiative long-distance power transfer method. It may potentially play an important role in certain scenarios where access is challenging, and the radio frequency power transfer is less efficient.
Lei Tian, Jiewen Nie, Haining Yang
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, 2015 We consider the effect of self-phase modulation and cross-phase modulation on the joint spectral amplitude of photon pairs generated by spontaneous four-wave mixing. In particular, the purity of a heralded photon from a pair is considered, in the context
Bell, Bryn +3 more
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Higher-resolution wavefront sensing based on sub-wavefront information extraction
Frontiers in PhysicsThe limited spatial sampling rates of conventional Shack–Hartmann wavefront sensors (SHWFSs) make them unable to sense higher-order wavefront distortion.
Hongli Guan +25 more
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