Results 41 to 50 of about 10,599,323 (287)

Cure monitoring of a UV cured epoxy resin using a long period grating Mach- Zehnder interferometer [PDF]

open access: yes, 2007
A cascaded long period grating Mach-Zehnder interferometer is used to monitor the change in refractive index of a UV cured epoxy resin over a cure cycle.
Richard P. Murphy   +7 more
core   +1 more source

Angularly Cascaded Long-Period Fiber Grating for Curvature and Temperature Detection

open access: yesSensors, 2023
A high-sensitivity curvature sensor with dual-parameter measurement ability based on angularly cascaded long-period fiber grating (AC-LPFG) is proposed and experimentally demonstrated, which consists of two titled LPFGs (TLPFGs) with different tilt ...
Anping Xiao   +9 more
doaj   +1 more source

Long period grating based toluene sensor for use with water contamination [PDF]

open access: yes, 2014
A demonstration of the use of a calix[4]resorcinarene coated optical fibre long period grating sensor for the detection of toluene in water is presented.
Wong, Rebecca   +6 more
core   +1 more source

Transmission Properties of Metallic Grating with Subwavelength Slits in THz Frequency Region

open access: yesActive and Passive Electronic Components, 2007
This paper presents a fully experimental and theoretical study on transmission properties of a deep metallic grating with subwavelength slits in THz frequency region by using THz time domain spectroscopy (THz-TDS).
Dong Liang   +9 more
doaj   +1 more source

Nonlinear tunneling effect of snakelike self-similar waves in a grating dual-core waveguide amplifier

open access: yesResults in Physics, 2019
We study on the nonlinear tunneling effect of snakelike self-similar waves of the nonlinear Schrödinger equation with gains in an asymmetric dual-core waveguide amplifier with a long-period grating.
Jun-Rong He, Si-Liu Xu, Li Xue
doaj   +1 more source

Response of fibre optic long period gratings operating near the phase matching turning point to the deposition of nanostructured coatings. [PDF]

open access: yes, 2008
The response of the dual resonant bands of a fibre optic long period grating operating near the phase matching turning point to the deposition of a nanostructured coating is investigated. The dual resonant bands are observed to show a high sensitivity to
Tatam, Ralph P.   +3 more
core   +1 more source

A Multi‐Scale Machine Learning Framework for the Inverse Design of High Entropy Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
High‐entropy alloys offer vast potential for various applications, including electrocatalysis; however, their compositional complexity challenges conventional screening. We introduce an inverse‐design framework combining two neural networks to determine optimal compositions and reconstruct nanoparticle geometry from targeted properties and conventional
Mikael Takoutsin   +14 more
wiley   +1 more source

Feasibility of Fiber Bragg Grating and Long-Period Fiber Grating Sensors under Different Environmental Conditions

open access: yesSensors, 2010
This paper presents the feasibility of utilizing fiber Bragg grating (FBG) and long-period fiber grating (LPFG) sensors for nondestructive evaluation (NDE) of infrastructures using Portland cement concretes and asphalt mixtures for temperature, strain ...
Jian-Neng Wang, Jaw-Luen Tang
doaj   +1 more source

Long-period gratings in polymer ridge waveguides

open access: yesOptics Express, 2005
We report the design and fabrication of long-period waveguide gratings (LPWGs) in benzocyclobutene (BCB) ridge waveguides. We apply an accurate perturbation theory to analyze the LPWGs. In particular, the phase-matching condition, the coupling coefficients, the temperature dependence of the resonance wavelength, the bandwidth, and the polarization ...
Q, Liu, K, Chiang, K, Lor
openaire   +2 more sources

Response of a fibre optic long period grating operating at the phase matching turning point to the deposition of a nanostructured coating [PDF]

open access: yes, 2009
The response of the transmission spectrum of a fibre optic long period grating operating near the phase matching turning point to the deposition of a nanostructured coating is investigated.
S. M. Topliss   +7 more
core   +1 more source

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