Results 31 to 40 of about 82,877 (286)
Generation of diffraction-free petallike beams based on stationary phase principle
Results in Physics, 2022 Lately, a kind of so-called “combined half-integer Bessel-like beams,” in which their subfamilies include radial carpet, petallike, and ringlike vortex beams, has been generated using a radial periodic grating.
Ning Gong +5 more
doaj +1 more source
High sensitivity refractive index sensor based on simple diffraction from phase grating [PDF]
, 2016 We present a technique for refractive index sensing using a phase grating structure. A grating under normal incidence can be designed such that the 1st order diffracted light travels at a diffraction angle of 90o with respect to the 0th order.
Adarsh Sandhu +3 more
core +2 more sources
AIP Advances, 2019 The recent development of phase-grating moiré neutron interferometry promises a wide range of impactful experiments from dark-field imaging of material microstructure to precise measurements of fundamental constants.
B. Heacock +8 more
doaj +1 more source
Nanophotonics, 2021 Bound states in the continuum (BICs) are observed in optical cavities composed of a high refractive index periodic structure embedded in significantly lower refractive index surroundings, enabling vertical confinement of the grating modes.
Pruszyńska-Karbownik Emilia +2 more
doaj +1 more source
Harmonically-related diffraction gratings-based interferometer for quadrature phase measurements [PDF]
, 2006 We demonstrate the use of shallow diffraction gratings for quadrature phase interferometry. A single shallow diffraction grating-based Michelson interferometer yields only trivial (0° or 180°) phase shift between different output ports.
Cui, Xiquan +4 more
core +1 more source
Monolithic InP-Based Grating Spectrometer for Wavelength-Division Multiplexed Systems at 1.5 μm [PDF]
, 1991 A monolithic InP-based grating spectrometer for use in wavelength-division multiplexed systems at 1.5 μm is reported. The spectrometer uses a single etched reflective focusing diffraction grating and resolves >50 channels at 1 nm spacing with a ~0.3nm ...
Andreadakis, N. C. +5 more
core +1 more source
Two-dimension trapezoidal grating raytracing based on the scalar diffraction and scattering theory
AIP Advances, 2018 Diffraction grating is a fundamental optical element in spectral measurement or source monochromation. A newly designed grating named as two-dimension trapezoidal grating (TG), which not only has non-harmonic diffraction, non-background contaminations ...
Z. Yang +8 more
doaj +1 more source
Surface Plasmon Resonances in Sn: In2O3 Thin Films with Diffraction Grating
Proceedings, 2018 We newly proposed transparent conductive oxide with diffraction grating structure as an excitation field of surface plasmon resonance working at near-infrared spectral region.
Noriyuki Hasuike +5 more
doaj +1 more source
Фізика і хімія твердого тіла, 2022 Diffractograms of rotated polyaniline fiber grating were studied experimentally. Based on the obtained results, the diffraction patterns were analyzed and set of experimental data obtained after image digitization was approximated by the least squares ...
P.P. Vankevych +7 more
doaj +1 more source
Transmissive Suppressed-Order Diffraction Grating (SODG)
, 2019 We present a novel type of Suppressed-Order Diffraction Grating(SODG). An SODG is a diffraction grating whose diffraction orders have all been suppressed except one that is selected to provide electromagnetic deflection.
Caloz, Christophe +2 more
core +1 more source