Results 1 to 10 of about 534,459 (302)
Large bandwidth, highly efficient optical gratings through high index materials [PDF]
, 2008 We analyze the diffraction characteristics of dielectric gratings that feature a high index grating layer, and devise, through rigorous numerical calculations, large bandwidth, highly efficient, high dispersion dielectric gratings in reflection, transmission, and immersed transmission geometry. A dielectric TIR grating is suggested, whose -1dB spectral
Baldry +17 more
arxiv +11 more sources
The Grating Interferometer [PDF]
Physical Review (Series I), 1910 n ...
Carl Barus, M. Barus
openalex +5 more sources
Experimental observation of plasmons in a graphene monolayer resting on a two-dimensional subwavelength silicon grating [PDF]
, 2013 We experimentally demonstrate graphene-plasmon polariton excitation in a continuous graphene monolayer resting on a two-dimensional subwavelength silicon grating.
Hansen, Ole +5 more
core +4 more sources
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022 As we look forward to the next generation of hyperspectral infrared (IR) atmospheric sounders, grating spectrometers hold promise for improved performance (e.g., horizontal and spectral resolutions) and more rapid revisit while reducing the size and ...
Thomas S. Pagano +4 more
doaj +1 more source
Precision grating for measuring microscope lens distortions [PDF]
International Journal of Metrology and Quality Engineering, 2010 Microscopy is used in most technology processes where two-dimensional distributions, that are digital images of the shape and appearance of integrated circuit (IC) features, reveal important information.
Jiang L.
doaj +1 more source
Optics Express, 2023 We propose the concept of a Dirac grating, where periodic permittivity perturbations approach a train of Dirac functions. We show that Dirac gratings can yield identical spectral characteristics for higher-order gratings compared to first-order gratings of the same length. Using an inverse Fourier transform technique, we design different types of Dirac
Saeidi, Shayan +3 more
openaire +2 more sources
Sensors, 2020 A new displacement sensor with light-field modulation, named as time grating, was proposed in this study. The purpose of this study was to reduce the reliance on high-precision measurements on high-precision manufacturing.
Min Fu +4 more
doaj +1 more source
Surface Texture Measurement on Complex Geometry Using Dual-Scan Positioning Strategy
Applied Sciences, 2020 In this paper, a surface measurement method based on dual-scan positioning strategy is presented to address the challenges of irregular surface patterns and complex geometries. A confocal sensor with an internal scanning mechanism was used in this study.
Fang Cheng, Shaowei Fu, Ziran Chen
doaj +1 more source
Energies, 2022 The performance of an optical linear encoder is described and evaluated by certain parameters such as its resolution, accuracy and repeatability. The best encoder for a particular application, just like other sensors, is usually selected according these ...
Donatas Gurauskis +6 more
doaj +1 more source