Results 251 to 260 of about 39,722 (316)

Incoherent digital holography simulation based on scalar diffraction theory

Journal of the Optical Society of America A, 2021
Incoherent digital holography (IDH) enables passive 3D imaging through the self-interference of incoherent light. IDH imaging properties are dictated by the numerical aperture and optical layout in a complex manner [Opt. Express 27, 33634 (2019)OPEXFF1094-408710.1364/OE.27.033634].
Teruyoshi Nobukawa, Yutaro Katano, Masahide Goto, Tetsuhiko Muroi, Nobuhiro Kinoshita, Yoshinori Iguchi, Norihiko Ishii   +6 more
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Structural Color Optimization using Scalar Diffraction Theory [PDF]

, 2013
Johansen, Villads Egede, Sigmund, Ole
openaire   +3 more sources

Diffracted radiance: a fundamental quantity in nonparaxial scalar diffraction theory

Applied Optics, 1999
Most authors include a paraxial (small-angle) limitation in their discussion of diffracted wave fields. This paraxial limitation severely limits the conditions under which diffraction behavior is adequately described. A linear systems approach to modeling nonparaxial scalar diffraction theory is developed by normalization of the spatial variables by ...
J E, Harvey, C L, Vernold, A, Krywonos, P L, Thompson   +3 more
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Scalar Diffraction Theory

1998
Diffraction is an important topic in the study of the propagation of electromagnetic waves. For a wave that is incident on an aperture in an opaque screen, the propagation of the wave in front of the screen is called diffraction. In fact the propagation of wave beams with finite transverse dimensions can also be treated by means of the approach for ...
Keqian Zhang, Dejie Li
openaire   +1 more source

Limits of scalar diffraction theory for conducting gratings

Applied Optics, 1993
Scalar diffraction theory and electromagnetic vector theory are compared by analyzing plane-wave scattering by a perfectly conducting, rectangular-grooved grating. General field solutions for arbitrary angles of incidence are derived by using scalar and vector theories.
D A, Gremaux, N C, Gallagher
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Limits of scalar diffraction theory for diffractive phase elements

Journal of the Optical Society of America A, 1994
The range of validity and the accuracy of scalar diffraction theory for periodic diffractive phase elements (DPE’s) is evaluated by a comparison of diffraction efficiencies predicted from scalar theory to exact results calculated with a rigorous electromagnetic theory.
Pommet, Drew A., Moharam, M. G., Grann, Eric B.   +2 more
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Babinet’s principle in scalar theory of diffraction

Optical Review, 2001
In this work, we present an original proof of Babinet’s principle within the framework of the scalar theory of diffraction. The proof is derived in the case of the Fraunhofer diffraction, directly from the Fresnel-Kirchhoff formula, using properties of Fourier analysis and integral calculus, without considering Babinet’s principle itself for scalar ...
J. R. Jiménez, E. Hita
openaire   +1 more source

An incremental theory of diffraction: scalar formulation

IEEE Transactions on Antennas and Propagation, 1994
A formulation is introduced that provides a self-consistent, high-frequency description of a wide class of scattering phenomena within a unified framework. This method is based on the appropriate use of locally tangent canonical problems, with a cylindrical uniform configuration and arbitrary cross section. A generalized localization process is applied
R. Tiberio, S. Maci
openaire   +1 more source

Coupled scalar wave diffraction theory

Applied Physics, 1981
A simple but accurate coupled-wave theory describing diffraction from a volume grating is developed, which applies to planar diffraction geometries with the electric field polarized normal to the plane of incidence. Modulation of the dielectric and the absorption properties of the medium are considered, and the analysis is developed for gratings ...
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Limits of scalar diffraction theory for multilayer diffractive optical elements

Optik, 2016
Abstract We presented the optimal surface relief heights of multilayer diffractive optical elements (MLDOEs) with the extended scalar diffraction theory. Comparisons of diffraction efficiency and polychromatic integral diffraction efficiency (PIDE) with different periods are described and simulated with extended scalar diffraction theory and scalar ...
Furong Huo, Wensheng Wang, Changxi Xue
openaire   +1 more source