Results 31 to 40 of about 6,073 (241)
Keeping Good Sensing Performance of Metal–Dielectric–Metal Waveguides After Coating Treatment
IEEE Photonics Journal, 2017 Good sensing performance is observed in metal–dielectric–metal (MDM) waveguides in recent research. However, Ag will be oxidized in air. The oxidization layer makes the sensing performance not as high as before.
Zhihui He +5 more
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Large-Angle Color Dispersion Based on 2-D Hexagonal Subwavelength Holographic Gratings
IEEE Photonics Journal, 2013 This paper presents large-angle color dispersion using a holographically fabricated 2-D subwavelength transmission grating. A dispersion angle of 68° is observed within continuous spectrum dispersion from 360 to 700 nm at an incident angle of 20 &#
Ya-Yun Lo +4 more
doaj +1 more source
Nanophotonics, 2021 Silicon photonics is playing a key role in areas as diverse as high-speed optical communications, neural networks, supercomputing, quantum photonics, and sensing, which demand the development of highly efficient and compact light-processing devices.
Luque-González José Manuel +8 more
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Compressive imaging of subwavelength structures: periodic rough surfaces [PDF]
Journal of the Optical Society of America A, 2012 A compressed sensing scheme for near-field imaging of corrugations of relative sparse Fourier components is proposed. The scheme employs random sparse measurement of near field to recover the angular spectrum of the scattered field. It is shown heuristically and numerically that under the Rayleigh hypothesis the angular spectrum is compressible and ...
Fannjiang, Albert, Tseng, Hsiao-Chieh
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[INVITED] Subwavelength structures for silicon photonics biosensing
Optics & Laser Technology, 2019 Silicon photonic biosensors hold the potential for highly accurate, yet low cost point-of-care devices. Maximizing the sensitivity of the sensing chips while reducing the complexity and cost of the read-out system is pivotal to realize this potential. Here we present an extensive analysis, both from a practical and a theoretical perspective, of current
Wangüemert-Pérez, J. Gonzalo +8 more
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Enhanced Conversion Efficiency for Solar Cells With Periodic Grating of Nanowires
IEEE Photonics Journal, 2013 The absorption of an amorphous silicon thin film with periodic gratings formed by an array of nanowires with varied heights and different profile shapes is studied.
Ya Han Ye +2 more
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Subwavelength light bending by metal slit structures
Optics Express, 2005 We discuss how light can be efficiently bent by nanoscale-width slit waveguides in metals. The discussion is based on accurate numerical solutions of Maxwell's equations. Our results, using a realistic model for silver at optical wavelengths, show that good right-angle bending transmission can be achieved for wavelengths lambda> 600 nm.
Tae-Woo, Lee, Stephen, Gray
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Subwavelength structured surfaces and their applications [PDF]
SPIE Proceedings, 1993 Subwavelength structured surfaces have a multitude of applications. These include antireflection suppression, fabrication of polarization components, narrowband filters, and phase plates. All of these applications offer advantages over conventional components.
Daniel H. Raguin +2 more
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Joint Control of Radiated and Surface Waves via Space‐Time Coding Metasurfaces
Advanced Functional Materials, EarlyView.A unified space‐time coding metasurface platform enables simultaneous control of radiated and surface‐confined waves across multiple harmonics. Demonstrated functionalities include multi‐frequency beam shaping; surface‐wave excitation, and hybrid multiplexing.
Zihao Dai +6 more
wiley +1 more source
Optical Interaction of a Pair of Nanoholes in Au Film via Surface Plasmon Polaritons
IEEE Photonics Journal, 2014 The optical interaction mechanism of a nanohole pair milled in an opaque gold film by means of surface plasmon polaritons (SPPs) propagation is investigated.
M. Janipour +2 more
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