Results 31 to 40 of about 91,943 (294)

ARRAW: anti-resonant reflecting acoustic waveguides

open access: yesNew Journal of Physics, 2020
Development of acoustic and optoacoustic on-chip technologies calls for new solutions to guiding, storing and interfacing acoustic and optical waves in integrated silicon-on-insulator systems.
M K Schmidt   +3 more
doaj   +1 more source

Enhanced optical Kerr nonlinearity of graphene/Si hybrid waveguide

open access: yes, 2018
In this work, we experimentally study the optical kerr nonlinearities of graphene/Si hybrid waveguides with enhanced self-phase modulation. In the case of CMOS compatible materials for nonlinear optical signal processing, Si and silicon nitride ...
Cong, Hui   +7 more
core   +1 more source

Conservation of orbital angular momentum and polarization through biological waveguides

open access: yesScientific Reports, 2022
A major roadblock to the development of photonic sensors is the scattering associated with many biological systems. We show the conservation of photonic states through optically self-arranged biological waveguides, for the first time, which can be ...
Nicolas Perez   +3 more
doaj   +1 more source

Electroactive Metal–Organic Frameworks for Electrocatalysis

open access: yesAdvanced Functional Materials, EarlyView.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska   +7 more
wiley   +1 more source

Controlled switching of discrete solitons in waveguide arrays [PDF]

open access: yes, 2003
We suggest an effective method for controlling nonlinear switching in arrays of weakly coupled optical waveguides. We demonstrate the digitized switching of a narrow input beam for up to eleven waveguides in the engineered waveguide arrays.Comment: 15 ...
Aceves   +14 more
core   +3 more sources

Imaging of Biphoton States: Fundamentals and Applications

open access: yesAdvanced Functional Materials, EarlyView.
Quantum states of two photons exhibit a rich polarization and spatial structure, which provides a fundamental resource of strongly correlated and entangled states. This review analyzes the physics of these intriguing properties and explores the various techniques and technologies available to measure them, including the state of the art of their ...
Alessio D'Errico, Ebrahim Karimi
wiley   +1 more source

Strain‐Programmable Luminescent Adhesive Patch With Tartrazine‐Mediated Optical Skin Clearing for Photochemical Tissue Bonding

open access: yesAdvanced Functional Materials, EarlyView.
We propose a suture‐complementary approach that integrates optical skin clearing with a strain‐programmable luminescent adhesive patch. Hyaluronic acid promotes transdermal delivery of tartrazine to improve optical clearing and stabilizes its interaction with a photosensitizer. Optical clearing increases the penetration depth of visible light into skin,
Seong‐Jong Kim   +6 more
wiley   +1 more source

Compact, spatial-mode-interaction-free, ultralow-loss, nonlinear photonic integrated circuits

open access: yesCommunications Physics, 2022
Adiabatic bends are used to reduce the optical loss of waveguides for integrated optics, but quantitative analysis of their adiabaticity have not been reported.
Xinru Ji   +6 more
doaj   +1 more source

Directional coupler for optical waveguides [PDF]

open access: yes, 1970
Feasibility study of transmitting optical energy in single mode through photonic waveguides results in a conceptual directional coupler consisting of two types of optical waveguides /a stratified /core/ dielectric and a mirror wall/.
Schineller, E. R., Wilmot, D. W.
core   +1 more source

Ion-Exchanged Waveguides in Glass Doped with PbS Quantum Dots [PDF]

open access: yes, 2004
The lowest-loss (≤1 dB/cm) ion-exchanged waveguides in glass doped with PbS quantum dots are presented. Near-field mode profile and refractive index profile using the refracted near-field technique were measured for these waveguides.
Axel Schülzgen   +10 more
core   +3 more sources

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