Relevant bibliographies by topics / Fraunhofer approximation

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers
  5. Reports

Academic literature on the topic 'Fraunhofer approximation'

Author: Grafiati
Published: 4 June 2021
Last updated: 4 February 2022

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Journal articles on the topic "Fraunhofer approximation"

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Budak, Vladimir P., Dmitry S. Efremenko, and Pavel A. Smirnov. "Fraunhofer Diffraction Description In The Approximation Of The Light Field Theory." Light & Engineering, no. 05-2020 (October 2020): 25–30. http://dx.doi.org/10.33383/2020-021.

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The wavelength is that natural scale that determines the applicability domains of the ray approximation and the wave approximation of light. If the change of the radiation power spatial density is significant at the wavelength scale, then we deal with the light diffraction phenomenon, which is a subject to the wave optics. Consider the diffraction phenomenon at the diaphragm. It is possible to distinguish the near zone with significant wave inhomogeneities (i.e. the Fresnel zone) and the far Fraunhofer diffraction zone, in which the wave becomes close to homogeneous (the so-called quasi-homoge
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CHEN, CHIH-CHING, PISIN CHEN, CHIA-YU HU, and K. C. LAI. "DISTINGUISHABILITY OF NEUTRINO FLAVORS THROUGH THEIR DIFFERENT SHOWER CHARACTERISTICS." Modern Physics Letters A 28, no. 02 (2013): 1340009. http://dx.doi.org/10.1142/s0217732313400099.

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We propose a new flavor identification method to distinguish mu and tau type ultra high energy cosmic neutrinos (UHECN). Energy loss of leptons in matter is an important information for the detection of neutrinos originated from high energy astrophysical sources. 50 years ago, Askaryan proposed to detect Cherenkov radiowave signals emitted from the negative charge excess of neutrino-induced particle shower. The theory of Cherenkov radiation under Fraunhofer approximation has been widely studied in the past two decades. However, at high energies or for high density materials, electromagnetic sh
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Malinka, Aleksey V. "Approximation of the Fraunhofer diffraction peak, produced by particles of arbitrary shape." Optics Letters 35, no. 20 (2010): 3411. http://dx.doi.org/10.1364/ol.35.003411.

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Ganci, S. "Diffracted wavefield by an arbitrary aperture from Maggi–Rubinowicz transformation: Fraunhofer approximation." Optik 119, no. 1 (2008): 41–45. http://dx.doi.org/10.1016/j.ijleo.2006.06.007.

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Balyan, Minas K. "Numerical reconstruction of an object image using an X-ray dynamical diffraction Fraunhofer hologram." Journal of Synchrotron Radiation 21, no. 1 (2013): 127–30. http://dx.doi.org/10.1107/s1600577513029317.

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A numerical method of reconstruction of an object image using an X-ray dynamical diffraction Fraunhofer hologram is presented. Analytical approximation methods and numerical methods of iteration are discussed. An example of a reconstruction of an image of a cylindrical beryllium wire is considered. The results of analytical approximation and zero-order iteration coincide with exact values of the amplitude complex transmission coefficient of the object as predicted by the resolution limit of the scheme, except near the edges of the object. Calculations of the first- and second-order iterations
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Qin, L. C. "Electron diffraction from cylindrical nanotubes." Journal of Materials Research 9, no. 9 (1994): 2450–56. http://dx.doi.org/10.1557/jmr.1994.2450.

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Electron diffraction intensities from cylindrical objects can be conveniently analyzed using Bessel functions. Analytic formulas and geometry of the diffraction patterns from cylindrical carbon nanotubes are presented in general forms in terms of structural parameters, such as the pitch angle and the radius of a tubule. As an example the Fraunhofer diffraction pattern from a graphitic tubule of structure [18,2] has been simulated to illustrate the characteristics of such diffraction patterns. The validity of the projection approximation is also discussed.
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Sumi, Chikayoshi. "Determination of Lateral Modulation Apodization Functions Using a Regularized, Weighted Least Squares Estimation." International Journal of Biomedical Imaging 2010 (2010): 1–7. http://dx.doi.org/10.1155/2010/635294.

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Recently, work in this group has focused on the lateral cosine modulation method (LCM) which can be used for next-generation ultrasound (US) echo imaging and tissue displacement vector/strain tensor measurements (blood, soft tissues, etc.). For instance, in US echo imaging, a high lateral spatial resolution as well as a high axial spatial resolution can be obtained, and in tissue displacement vector measurements, accurate measurements of lateral tissue displacements as well as of axial tissue displacements can be realized. For an optimal determination of an apodization function for the LCM met
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Sharygin, G. S., V. A. Gromov, and M. V. Krutikov. "Numerical modeling of Fraunhofer diffraction in the Huygens-Fresnel approximation and forward scattering indicatrix of aircrafts." Russian Physics Journal 55, no. 3 (2012): 264–70. http://dx.doi.org/10.1007/s11182-012-9805-6.

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Ohlídal, Miloslav. "Comparison of Two-dimensional Fraunhofer Approximation and Two-dimensional Fresnel Approximation at Analysis of Surface Roughness by Angle Speckle Correlation II. Experimental Results." Journal of Modern Optics 42, no. 10 (1995): 2081–94. http://dx.doi.org/10.1080/09500349514551811.

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Pei, Ting-Hang, Kuen-Yu Tsai, and Jia-Han Li. "Comparison of the vectorial diffraction theory and Fraunhofer approximation method on diffractive images of Fresnel zone plates." Optical and Quantum Electronics 47, no. 7 (2014): 1557–67. http://dx.doi.org/10.1007/s11082-014-9995-y.

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Dissertations / Theses on the topic "Fraunhofer approximation"

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Jaworková, Magdalena. "Úprava konstrukce zařízení pro měření rozptylu laserového světla z drsných povrchů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417166.

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This diploma thesis deals with a design modification of detection part of the laboratory instrument for measuring the topography of rough surfaces – laser goniometric scatterometer (SM II). Design modification is based on replacement of so far used detector instead for the detector of higher quality with better measurement parameters. The first part of the diploma thesis contains theoretical basics, which are necessary to understand the relationship between scalar diffraction theory and scattering measurements of monochromatic light. The emphasis is on the importance of choosing appropriate de
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Book chapters on the topic "Fraunhofer approximation"

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Brooker, Geoffrey. "Diffraction integrals and the Kirchhoff approximation." In Essays in Physics. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198857242.003.0009.

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“Diffraction integrals and the Kirchhoff approximation” gathers together theorems concerned with diffraction. The diffraction integral may be put into Dirichlet and Neumann forms. Back-diffraction is exactly zero (not relying on a Kirchhoff approximation or an obliquity factor). We discuss the limits on Kirchhoff's approximation, complementary apertures (Babinet's principle), the Fraunhofer limit, and the case of a long slit.
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"Fresnel and Fraunhofer Approximations." In Diffraction, Fourier Optics and Imaging. John Wiley & Sons, Inc., 2006. http://dx.doi.org/10.1002/9780470085004.ch5.

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Freeman, Richard, James King, and Gregory Lafyatis. "Diffraction and the Propagation of Light." In Electromagnetic Radiation. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198726500.003.0012.

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Geometric optics is considered and the eikonal equation is introduced. Krirchoff’s diffraction theory is presented with his integral theorem. Rayleigh–Sommerfeld diffraction is discussed and Fresnel’s approximation for the Kirchoff integrals and Babinet’s principle are given. Fraunhoffer diffraction is considered in detail, specifically diffraction by a rectangular and circular aperture. Special emphasis is given to the angular spectrum representation and its applications, including Gaussian beams, Fourier optics, and tight focusing of fields. Finally, the fields and modes of a tightly focused Gaussian beam are considered and the diffraction limits on microscopy are given.
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Conference papers on the topic "Fraunhofer approximation"

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Boumrar, Karima, Ali Boukellal, Pierre Pfeiffer, and Rabah Mokdad. "Size measurements of an optical fiber by diffraction pattern analysis in Fraunhofer approximation." In Optical Micro- and Nanometrology, edited by Christophe Gorecki, Anand K. Asundi, and Wolfgang Osten. SPIE, 2018. http://dx.doi.org/10.1117/12.2306570.

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Gajda, Jerzy K. "Influence of diffraction grating parameter variations on field distribution in the Fraunhofer approximation." In Laser Technology V, edited by Wieslaw L. Wolinski and Michal Malinowski. SPIE, 1997. http://dx.doi.org/10.1117/12.280492.

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Vargas-Ubera, Javier, D. M. Gale, and J. Felix-Aguilar. "Range of validity of the Fraunhofer approximation in the estimation of particle size distributions from light diffraction." In IV Iberoamerican Meeting of Optics and the VII Latin American Meeting of Optics, Lasers and Their Applications, edited by Vera L. Brudny, Silvia A. Ledesma, and Mario C. Marconi. SPIE, 2001. http://dx.doi.org/10.1117/12.437165.

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Prazak, Dominik, and Miloslav Ohlidal. "Autocorrelation function of the sum of two spectrally decorrelated laser speckle fields: comparison of Fresnel and Fraunhofer approximation." In 13th Polish-Czech-Slovak Conference on Wave and Quantum Aspects of contemporary Optics. SPIE, 2003. http://dx.doi.org/10.1117/12.545104.

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Schrape, Sven, Jens Nipkau, Arnold Ku¨hhorn, and Bernd Beirow. "Application of Aeroelastic Methods in Compressor Cascade Configurations Using Commercial Code Coupling." In ASME 2008 Pressure Vessels and Piping Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/pvp2008-61274.

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This paper presents the results of fluid structure coupled simulations of compressor blade vibrations of two compressor cascade configurations in order to determine aeroelastic parameters such as aerodynamic damping and the corresponding frequency shift. Therefore a partitioned code coupling approach was employed in order to couple the FE-code ABAQUS with the CFD-code FLUENT via MpCCI (Mesh based Code Coupling Interface) developed by Fraunhofer SCAI. The code coupling is used to compute the unsteady, two-dimensional, inviscid and viscid flow around a NACA 3506 airfoil for blade vibrations in a
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Reports on the topic "Fraunhofer approximation"

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Weiner, Melvin M. Overestimation of On-Axis Power Density by the Fraunhofer ('Far-Field') Approximation. Defense Technical Information Center, 1987. http://dx.doi.org/10.21236/ada186399.

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Journal articles
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