Results 51 to 60 of about 5,939 (172)

Intra-cavity frequency shifted laser pumps for non-degenerate and partially coherent Bragg-Scattering FWM in nonlinear fiber [PDF]

open access: yes, 2011
International audienceIn this work the authors experimentally study the problem of non-degenerate four-wave-mixing (FWM) by using a pair of partially coherent pumps, and focus our attention on a specific type of FWM, which is generally called "Bragg ...
A. Tonello   +23 more
core   +1 more source

Influence of Manual and Powered Toothbrushes on Gingival Lesions: A Systematic Review and Meta‐Analysis

open access: yesInternational Journal of Dental Hygiene, EarlyView.
ABSTRACT Aim The aim of the present systematic review is to compare the effects of manual vs. powered toothbrushes on gingival lesions. Methods Comprehensive literature searches of PubMed, Embase, Scopus, and the Cochrane Library were conducted up to May 6, 2024, to identify randomized clinical trials examining the impact of manual and powered ...
C. Molina   +4 more
wiley   +1 more source

Efficacy of a 2% Chlorhexidine‐Impregnated Dental Floss in Adults With Gingivitis: A Randomised Clinical Trial

open access: yesInternational Journal of Dental Hygiene, EarlyView.
ABSTRACT Objective This study aimed to assess the antigingivitis and antiplaque efficacy of a 2% chlorhexidine (CHX)‐impregnated dental floss in adults with gingivitis. Methods This randomised clinical study included 42 patients diagnosed with gingivitis. They were randomly allocated into three groups: no interdental cleaning (NIC) group, which did not
Manuela Ferrari da Silva   +7 more
wiley   +1 more source

Comparison of Different FWM Realization Methods in Optical Fibre

open access: yes, 1970
This paper describes detailed study in optical fibre nonlinear phenomenon - four wave mixing (FWM). It includes explanation of physical reason and realisation methods in optical fibres.
A. Supe, J. Porins
core   +1 more source

Design of silicon nitride waveguides with integrated graphene oxide films for FWM

open access: yes, 2023
We theoretically investigate and optimize four-wave mixing (FWM) in silicon nitride (SiN) waveguides integrated with two-dimensional (2D) layered graphene oxide (GO) films.
David Moss
core   +1 more source

Orthogonally polarized correlated photon pair generation on a chip via self- Pumped spontaneous non- Degenerate FWM

open access: yes, 2014
We demonstrate orthogonally polarized photon pair generation via spontaneous nondegenerate four-wave-mixing (FWM) of orthogonally polarized pumps in a CMOS compatible micro-ring resonator by fully suppressing stimulated FWM.
Matteo Clerici   +21 more
core   +2 more sources

Vacuum Infusion as a Processing Route for Transparent Wood Laminates

open access: yesPolymer Composites, Volume 47, Issue 17, Page 15441-15455, 10 September 2026.
Schematic representation of the fabrication route for transparent wood laminates, including wood veneer delignification, epoxy resin impregnation by vacuum infusion processing, and the final TW‐1 transparent wood laminate. ABSTRACT Transparent wood (TW) has attracted increasing attention as a bio‐based material for daylighting and building‐envelope ...
Letícia Zimermann Pires   +7 more
wiley   +1 more source

Accurate measurement of in-band FWM power in DWDM systems over non-zero dispersion fibers

open access: yes, 2003
A novel accurate measurement technique of the in-band four-wave mixing (FWM) power in dense wavelength-division multiplexing (DWDM) over nonzero dispersion fibers is presented.
L. POTI', A. BOGONI, BONONI, Alberto
core   +1 more source

Thin‐film lithium niobate photonics: Frontiers in millimeter‐wave and terahertz generation and integrated applications

open access: yesInfoScience, Volume 3, Issue 3, September 2026.
With the advancement of 6G communications, high‐precision radar, and advanced imaging technologies, there is a growing demand for compact, high‐performance light sources capable of generating high‐frequency radio waves (millimeter‐wave and terahertz waves). This article systematically introduces how to efficiently generate these high‐frequency waves on
Jianfeng Xiong   +8 more
wiley   +1 more source

Investigation of FWM in dispersion-engineered GaInP photonic crystal waveguides

open access: yes, 2012
International audienceWe report on the investigation of four-wave mixing (FWM) in a long (1.3 mm) dispersion-engineered Gallium Indium Phosphide (GaInP) photonic crystal (PhC) waveguide.
Lenglé, Kevin   +8 more
core   +1 more source

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