Results 51 to 60 of about 50,260 (318)

Retiming of short pulses using quadratic cascading in a periodically poled lithium niobate waveguide

open access: yes, 2011
We demonstrate an all-optical technique for the mitigation of timing jitter in short pulse transmission systems. The technique relies on pulse preshaping followed by optical switching in a periodically poled lithium niobate waveguide via cascaded second ...
David J. Richardson   +17 more
core   +1 more source

Integration of Complex Optical Functionality in a Production CMOS Process [PDF]

open access: yes, 2005
Optical functionality has been developed within the confines of an existing CMOS process. As of this writing, 10Gigabit modulators, electrically tunable optical filters, waveguides, and grating coupler technology have been successfully implemented ...
Gunn, Lawrence Cary, III
core   +1 more source

Mode-Selective Absorption and All-Optical Control Between Two Transverse Modes on Silicon-on-Insulator

open access: yesIEEE Photonics Journal, 2019
Mode-selective absorption is realized by designing the ridge waveguide structure on silicon-on-insulator combined with two metal titanium (Ti) strips located on the two waveguide edges.
Yong Zhao   +8 more
doaj   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

Numerical simulation of continuum generation in a multimode nonlinear waveguide

open access: yes, 2007
Continuum generation in large multimode nonlinear waveguides offers the exciting prospect of a new generation of compact, integrated, and high-power broadband light sources. Recently a novel technique based on Scanning Near-field Optical Microscopy (SNOM)
Horak, P.   +7 more
core   +1 more source

PDMS-based Optical Leaky Waveguide Coated with Self-assemble Au-NPs for Bio-analytical Detections

open access: yesInternational Journal of Automation and Smart Technology, 2012
This paper presents a novel method for fabricating PDMS-based optical leaky waveguides coated with self-assembled gold nano-particles (Au-NP) for bio-analytical detection utilizing the localized surface plasmon resonance (LSPR) effect.
Yi-Chieh Chen   +2 more
doaj   +1 more source

Tunable optical lattices in the near-field of a few-mode nanophotonic waveguide [PDF]

open access: yesEPJ Web of Conferences, 2019
Due to the action of the scattering force, particles that are optically trapped at the surface of a waveguide are propelled in the direction of the light propagation.
Pin Christophe   +6 more
doaj   +1 more source

Adiabaticity engineering in optical waveguides

open access: yesOptics Express, 2020
The fast quasi-adiabatic dynamics (FAQUAD) protocol has proven to be an effective approach to provide shortcuts to adiabatic light evolution in optical waveguides, resulting in short and robust devices. However, the FAQUAD approach of homogeneously distributing device adiabaticity only works for a single mode (polarization, wavelength, or spatial mode ...
Yi-Lin Wu   +3 more
openaire   +2 more sources

Directional Flow of Confined Polaritons in CrSBr

open access: yesAdvanced Materials, EarlyView.
CrSBr, a layered magnetic semiconductor, naturally channels self‐hybridized excitonpolaritons into highly directional flow. Its intrinsic optical anisotropy, high refractive index, and strong lightmatter coupling enable long‐range guided modes along the a‐axis, with propagation lengths set by their excitonphoton admixture.
Pratap Chandra Adak   +10 more
wiley   +1 more source

Waveguide properties of thin polymer films [PDF]

open access: yes, 1999
Some basic concepts and principles of optical dielectric slab waveguiding and experimental methodology involving characterisation of waveguide films are introduced, Results from the characterisation of thin polymeric waveguide films and measurements of ...
Ren, Yitao, Ren, Y.
core  

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