Results 31 to 40 of about 530,378 (278)

Long Low-Loss-Litium Niobate on Insulator Waveguides with Sub-Nanometer Surface Roughness

open access: yesNanomaterials, 2018
In this paper, we develop a technique for realizing multi-centimeter-long lithium niobate on insulator (LNOI) waveguides with a propagation loss as low as 0.027 dB/cm.
Rongbo Wu   +11 more
semanticscholar   +1 more source

Sub‐THz Phase Shifters Enabled by Photoconductive Single‐Walled Carbon Nanotube Layers

open access: yesAdvanced Photonics Research, 2023
Materials with tunable dielectric properties are highly relevant for terahertz (THz) applications. Herein, the tuning of the dielectric response of single‐walled carbon nanotube layers by light illumination is studied for applications to THz phase ...
Serguei Smirnov   +8 more
doaj   +1 more source

Invited Article: Enhanced four-wave mixing in waveguides integrated with graphene oxide

open access: yesAPL Photonics, 2018
We demonstrate enhanced four-wave mixing (FWM) in doped silica waveguides integrated with graphene oxide (GO) layers. Owing to strong mode overlap between the integrated waveguides and GO films that have a high Kerr nonlinearity and low loss, the FWM ...
Yunyi Yang   +8 more
semanticscholar   +1 more source

Supercontinuum in integrated photonics: generation, applications, challenges, and perspectives

open access: yesNanophotonics, 2023
Frequency conversion in nonlinear materials is an extremely useful solution to the generation of new optical frequencies. Often, it is the only viable solution to realize light sources highly relevant for applications in science and industry.
Brès Camille-Sophie   +5 more
doaj   +1 more source

High-efficiency and easy-to-fabricate integrated plasmonic grating couplers for the telecommunication wavelength range

open access: yesКомпьютерная оптика, 2023
The paper describes results of the numerical simulation and experimental characterization of plasmonic gratings and waveguides in the optical range of 1520 – 1630 nm.
D.S. Zemtsov   +6 more
doaj   +1 more source

Silicon-on-Nitride Waveguide With Ultralow Dispersion Over an Octave-Spanning Mid-Infrared Wavelength Range

open access: yesIEEE Photonics Journal, 2012
The proposed silicon-on-nitride (SON) waveguide exhibits an ultrabroadband (4200 nm), low chromatic dispersion in the mid-infrared (MIR) wavelength region from 2430 to 6630 nm. It has two zero-dispersion wavelengths within the span.
Yang Yue   +4 more
doaj   +1 more source

All-optical modulation in a CMOS-compatible amorphous silicon-based device [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2012
Active silicon photonic devices, which dynamically control the flow of light, have received significant attention for their use in on-chip optical networks.
Rao S., D’Addio C., Della Corte F. G.
doaj   +1 more source

Coupled Strip-Array Waveguides for Integrated Mid-IR Gas Sensing

open access: yesPhotonics, 2023
Non-dispersive infrared (NDIR) absorption spectroscopy is a widespread approach to gas sensing due to its selectivity and conceptual simplicity. One of the main challenges towards the development of fully integrated NDIR sensors is the design and ...
Pooja Thakkar   +12 more
doaj   +1 more source

Nanoplasmonic waveguides: towards applications in integrated nanophotonic circuits

open access: yesLight: Science & Applications, 2015
The properties of propagating surface plasmon polaritons (SPPs) along one-dimensional metal structures have been investigated for more than 10 years and are now well understood.
Yurui Fang, Mengtao Sun
semanticscholar   +1 more source

Resemblance between gap waveguides and hollow waveguides [PDF]

open access: yesIET Microwaves, Antennas & Propagation, 2013
There is a lack of suitable numerical ports for the gap waveguides. This study studies the resemblance between the ridge/groove gap waveguide and the conventional hollow ridge/rectangular waveguide, respectively, by using numerical analysis. The dispersion diagrams and characteristic impedances are compared and found to be similar within the stopband ...
Hasan Raza   +3 more
openaire   +2 more sources

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