Student recognition of interference and diffraction patterns: An eye-tracking study
Previous studies have demonstrated that students have difficulties in applying the wave model of light to explain single-slit diffraction and double-slit interference patterns.
Ana Susac +4 more
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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
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A Switchable Cholesteric Phase Grating with a Low Operating Voltage
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
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Design of 4.7 μm High-Efficiency Hybrid Dielectric Reflection Gratings
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
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A 1 × 2 Two-Dimensional Slanted Grating Based on Double-Layer Cylindrical Structure
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
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ON A METHOD FOR SOLVING THE PROBLEM OF ELECTROMAGNETIC WAVE DIFFRACTION ON A DIFFRACTION GRATING
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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Optimal Control of Passive Cascaded Liquid Crystal Polarization Gratings
The incidence angle of a beam entering a liquid crystal variable retarder (LCVR) and the liquid crystal polarization grating (LCPG) is greater when the LCPG is utilized in the quadrature cascade, which reduces the diffraction efficiency.
Huan Qin +3 more
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Polarization-Independent Two-Layer Grating With Five-Port Splitting Output Under Normal Incidence
In this paper, we report a two-layer five-port diffraction grating by a polarization-independent design under normal incidence. To be different from conventional five-port gratings, initially, we design a novel two-layer grating with operation in ...
Bowen Gong, Huiying Wen, Hongtao Li
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THE FREQUENCY TUNNING RANGE OF DIFFRACTION RADIATION OSCILLATOR WITH PERIODICAL STRUCTURE IN A DOUBLE GRATING FORM [PDF]
The diffraction radiation oscillator is one of the perspective sources for millimeter and T-wave, and it demands further improvement of its output characteristics.
I. O. Kovalov, V. S. Miroshnichenko
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Optimization of parameters of multilayer diffraction gratings using needle variations
Background. The purpose of the work is to optimize the diffraction efficiency in the first diffraction order of a multilayer diffraction grating. Material and methods. Needle variations are used to optimize diffraction efficiency.
V.Yu. Martynova +2 more
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