Faster and More Accurate Geometrical-Optics Optical Force Calculation Using Neural Networks
Sign Up to like & getrecommendations! Published in 2022 at "ACS Photonics"
DOI: 10.1021/acsphotonics.2c01565
Abstract: Optical forces are often calculated by discretizing the trapping light beam into a set of rays and using geometrical optics to compute the exchange of momentum. However, the number of rays sets a trade-off between… read more here.
Keywords: neural networks; optics; geometrical optics; faster accurate ... See more keywords
Controlling lightwave in Riemann space by merging geometrical optics with transformation optics
Sign Up to like & getrecommendations! Published in 2017 at "Scientific Reports"
DOI: 10.1038/s41598-017-19015-0
Abstract: In geometrical optical design, we only need to choose a suitable combination of lenses, prims, and mirrors to design an optical path. It is a simple and classic method for engineers. However, people cannot design… read more here.
Keywords: geometrical optics; transformation optics; method; optics ... See more keywords
Principles of electron optics: volume one: basic geometrical optics & volume two: applied geometrical optics
Sign Up to like & getrecommendations! Published in 2019 at "Contemporary Physics"
DOI: 10.1080/00107514.2019.1614675
Abstract: Electron optics deals with the properties and propagation of electrons that are released from the material source and controlled by the related instruments; namely, electron guns, electric and magn... read more here.
Keywords: principles electron; optics volume; geometrical optics; optics ... See more keywords
Steepest-descent algorithm for simulating plasma-wave caustics via metaplectic geometrical optics.
Sign Up to like & getrecommendations! Published in 2021 at "Physical review. E"
DOI: 10.1103/physreve.104.025304
Abstract: The design and optimization of radiofrequency-wave systems for fusion applications is often performed using ray-tracing codes, which rely on the geometrical-optics (GO) approximation. However, GO fails at wave cutoffs and caustics. To accurately model the… read more here.
Keywords: algorithm; steepest descent; optics; geometrical optics ... See more keywords
Geometrical optics of large deviations of fractional Brownian motion.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review. E"
DOI: 10.1103/physreve.105.064137
Abstract: It has been shown recently that the optimal fluctuation method-essentially geometrical optics-provides a valuable insight into large deviations of Brownian motion. Here we extend the geometrical optics formalism to two-sided, -∞ read more here.
Keywords: brownian motion; fractional brownian; optics; geometrical optics ... See more keywords
Beyond Geometrical Optics: Higher Order Diffraction at Thin Curved Dielectric Layers
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Antennas and Propagation"
DOI: 10.1109/tap.2018.2790441
Abstract: In this paper, we elaborate the method to successively find higher order terms of the asymptotic expansion of the field diffracted at a thin dielectric layer in 2-D problems (both the cases of E- and… read more here.
Keywords: order; geometrical optics; higher order; optics higher ... See more keywords
Geometrical optics approximation for plane-wave scattering by a rectangular groove on a surface.
Sign Up to like & getrecommendations! Published in 2020 at "Applied optics"
DOI: 10.1364/ao.386733
Abstract: Rigorous solution of plane-wave scattering by a groove based on electromagnetic theory will be time-consuming if the groove width is much larger than the illumination wavelength. To accelerate the computation, an approach based on geometrical… read more here.
Keywords: plane wave; geometrical optics; optics approximation; wave scattering ... See more keywords
Hybrid design of diffractive optical elements for optical beam shaping.
Sign Up to like & getrecommendations! Published in 2021 at "Optics express"
DOI: 10.1364/oe.439641
Abstract: Hybrid methods combining the geometrical-optics and diffraction-theory methods enable designing diffractive optical elements (DOEs) with high performance due to the suppression of stray light and speckles and, at the same time, with a regular and… read more here.
Keywords: optical elements; irradiance; diffractive optical; geometrical optics ... See more keywords
Exploring Pre-Service Teachers’ Conceptual Understanding and Confidence in Geometrical Optics: A Focus on Gender and Prior Course Achievement
Sign Up to like & getrecommendations! Published in 2023 at "Education Sciences"
DOI: 10.3390/educsci13050452
Abstract: This study investigated pre-service science teachers’ conceptual understanding and confidence in geometrical optics with respect to gender and their previous achievement in geometrical optics course. A total of 189 (60% female and 40% male) pre-service… read more here.
Keywords: confidence; pre service; optics; geometrical optics ... See more keywords