Quadratic behavior of fiber Bragg grating temperature coefficients [PDF]
, 2004 We describe the characterization of the temperature and strain responses of fiber Bragg grating sensors by use of an interferometric interrogation technique to provide an absolute measurement of the grating wavelength. The fiber Bragg grating temperature
Flockhart, G M H +9 more
core +4 more sources
Explicit error bounds for the α-quasi-periodic Helmholtz problem [PDF]
, 2013 This paper considers a finite element approach to modeling electromagnetic waves in a periodic diffraction grating. In particular, an a priori error estimate associated with the α-quasi-periodic transformation is derived.
Mulholland, Anthony J., Lord, Natacha H.
core +4 more sources
Grating-coupled surface plasmons at microwave frequencies [PDF]
, 1999 This work presents a detailed investigation of electromagnetic coupling to the surface plasmon-polariton (SPP) at microwave frequencies. We have recorded the wavelength-dependent reflectivity from a metallic sinusoidal diffraction grating of pitch 15 mm.
Christopher R. Lawrence (17515956) +2 more
core +6 more sources
Volume diffraction gratings for optical telecommunications applications: design study for a spectral equalizer [PDF]
, 2004 The main characteristics required for a diffraction grating used for demultiplexing functions in spectral equalizing systems are investigated, both theoretically and experimentally.
Shigapova, N.M. +12 more
core +1 more source
Applied Sciences, 2023 We design a unique external cavity configuration and present an ultra-narrow linewidth external cavity diode laser (ECDL) employing a wide interference filter and diffraction grating.
Yan Wang +8 more
doaj +1 more source
A Switchable Cholesteric Phase Grating with a Low Operating Voltage
Crystals, 2021 We demonstrate a simple fabrication method of a uniform-lying-helix (ULH) cholesteric liquid crystal (ChLC) cell for phase grating device applications.
Ho-Jin Sohn +4 more
doaj +1 more source
Design of 4.7 μm High-Efficiency Hybrid Dielectric Reflection Gratings
Micromachines, 2022 Traditional reflective diffraction gratings working at 4.7 μm are fabricated by metal coatings. Due to the absorption of the metal itself, the diffraction efficiency (DE) could not reach over 95%.
Ye Wang +5 more
doaj +1 more source
A 1 × 2 Two-Dimensional Slanted Grating Based on Double-Layer Cylindrical Structure
Applied Sciences, 2023 Diffraction gratings play an increasingly important role in various planar optical systems, such as near-eye display systems for virtual reality (VR) and augmented reality (AR). The slanted gratings have more advantages than other elements.
Yuda Chen +5 more
doaj +1 more source
ON A METHOD FOR SOLVING THE PROBLEM OF ELECTROMAGNETIC WAVE DIFFRACTION ON A DIFFRACTION GRATING
Известия высших учебных заведений. Поволжский регион: Физико-математические науки, 2020 Background. The aim of the study is to develop a numerical method for solving the problem of diffraction of electromagnetic waves on a two-dimensional periodic diffraction grating. Materials and methods. A modified method of separation of variables in
E. V. Gusarova +2 more
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Simultaneous, independent measurement of temperature and strain using a tilted fibre Bragg grating [PDF]
, 2007 A single fibre Bragg grating is used to discriminate between temperature and strain by exploiting the core-cladding mode coupling of a tilted fibre Bragg grating (TFBG).
Ralph P. Tatam +5 more
core +1 more source