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Saturday, August 8, 2020 | History

2 edition of New methods for optical, quasi-optical, acoustic, and electromagnetic synthesis found in the catalog.

New methods for optical, quasi-optical, acoustic, and electromagnetic synthesis

New methods for optical, quasi-optical, acoustic, and electromagnetic synthesis

[symposium] August 25-26, 1981, San Diego, California

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  • 38 Currently reading

Published by SPIE--the International Society for Optical Engineering in Bellingham, Wash .
Written in English

    Subjects:
  • Optical instruments -- Design and construction -- Congresses.,
  • Electromagnetic theory -- Congresses

  • Edition Notes

    Includes bibliographical references and indexes.

    StatementW. Ross Stone, chairman-editor.
    SeriesProceedings of SPIE--the International Society for Optical Engineering ;, v. 294
    ContributionsStone, W. Ross., Society of Photo-optical Instrumentation Engineers.
    Classifications
    LC ClassificationsTS510 .N49 1982
    The Physical Object
    Paginationvi, 180 p. :
    Number of Pages180
    ID Numbers
    Open LibraryOL3794883M
    ISBN 10089252328X
    LC Control Number81084405

    In this paper, we propose a new numerical method for scattering problems in periodic waveguide, based on the newly established contour integral representation of solutions in a previous paper by the author (see [Zhadf]). approximability of time-harmonic electromagnetic scattering problems involving bianisotropic media in free-space or inside. Moreover, Metamaterials are being applied to the development and construction of many new metadevices throughout the electromagnetic spectrum of the electromagnetic metamaterials, for example. Limitations posed by the electromagnetic metamaterial operational bandwidth and losses can be effectively mitigated through the incorporation of tunable.

    Acoustic Vibrations 51 Subject of Acoustics 52 Musical Tone. Laudness and Pitch 53 Tembre 54 Acoustic Resonance 56 Recording and Reproduction of Sounds 58 Analysis and Synthesis of Sound 59 Noises 60 Chapter 3 Electric Oscillations 63 Electric Oscillations and Methods of Their Observation 63 One of the most methodical treatments of electromagnetic wave propagation, radiation, and scatteringincluding new applications and ideas Presented in two parts, this book takes an analytical approach on the subject and emphasizes new ideas and applications used today. Part one covers fundamentals of electromagnetic wave propagation, radiation, and scattering. It provides ample end .

      Near-field compensated higher order Ambisonics (NFC-HOA) and wave field synthesis (WFS) constitute the two best-known analytic sound field synthesis methods. While WFS is typically used for the synthesis of virtual sound scenes, NFC-HOA is typically employed in order to synthesize sound fields that have been captured with appropriate microphone arrays.. Such recorded sound . Spectroscopy is the study of the interaction between matter and electromagnetic radiation as a function of the wavelength or frequency of the radiation. Historically, spectroscopy originated as the study of the wavelength dependence of the absorption by gas phase matter of visible light dispersed by a elementary description of absorption, emission and scattering spectroscopy is given.


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New methods for optical, quasi-optical, acoustic, and electromagnetic synthesis Download PDF EPUB FB2

New methods for optical, quasi-optical, acoustic, and electromagnetic synthesis. quasi-optical Bellingham, Wash.: SPIE--the International Society for Optical Engineering, © (OCoLC) Material Type: Conference publication: Document Type: Book: All Authors / Contributors: W Ross Stone; Society of Photo-optical Instrumentation Engineers.

New methods for optical, quasi-optical, acoustic and electromagnetic synthesis; Proceedings of the Meeting, San Diego, CA, Aug 26, Author: W. Stone. Get this from a library. New methods for optical, quasi-optical, acoustic, and electromagnetic synthesis: [symposium] August, San Diego, California.

[W Ross Stone; Society of Photo-optical Instrumentation Engineers.;]. As optical fiber technology matures, complexity of optical waveguides and waveguide components also grows. Traditional techniques which may be used to analyze circular fibers are no longer adequate. An assessment of several modern analytical/numerical techniques which have been used successfully to treat problems of practical interests is : C.

Yeh. New methods for optical, quasi-optical, acoustic and electromagnetic synthesis. Pub Date: February DOI: / Bibcode: SPIES Keywords: Geometrical Optics; Geometrical Theory Of Diffraction; Physical Optics; Wave Fronts; Eikonal Equation; Cited by: 1.

This paper presents two basic ideas: 1. Synthesis is a problem that is different and distinct quasi-optical analysis, and should be treated as such. Most electromagnetic and acoustic synthesis problems ultimately deal with physics that can be expressed mathematically in the same form. In the synthesis problem a designer specifies the field that is to be incident on a system, and the field that it is desired that the system produce from this incident field by refraction, reflection, diffraction, scatterng, and/or reradiation.

New methods for optical, quasi-optical, acoustic and electromagnetic synthesis. Pub Date. Analytic expressions relate these parameters to the optical fiber diameter, materials, and wavelengths of interest.

These expressions are used to find dispersion and bandwidth. In this way it is possible to determine fiber parameters so that minimum dispersion occurs at preferred operating wavelengths.

Numerical propagation of scalar fields within thin annuli over short distances demands very high sampling density when employing techniques which evaluate the Fresnel-Kirchhoff integral.

Previous work on using asymptotic expansion methods has been limited to field distributions which display a high degree of azimuthal symmetry. A development of the Aldis equations is presented which permits exact computation of the contribution of each surface to the aberration of a ray at the focal plane.

SPIE Vol. New Methods for Optical, Quasi - Optical, Acoustic, and Electromagnetic Synthesis () / 29 Optical, Quasi-Optical, Acoustic, and Electromagnetic Synthesis () / SPIE Vol choice of single-mode is influenced by trade-offs between microbending losses, splicing The choice of single -mode fiber waveguide parameters is influenced.

The dual-shaped reflector synthesis problem was first solved by Kinber and Galindo in the early 's for the circularly symmetric-shaped reflectors. Given an arbitrary feed pattern, it was shown that the surfaces required to transform this feed pattern by geometrical optics into any specified phase and amplitude pattern in the specified output aperture are found by the integration of two.

A planar aperture synthesis procedure which predicts measured radiation pattern data accurately and which exploits known physical parameters of the actual antenna is described for use in computer-aided radome analysis.

The plane wave spectrum (PWS) representation, with the geometrical optics approximation, is used to characterize radiation from the array of four identical, discrete, conical.

SPIE Vol. New Methods for Optical, Quasi-Optical, Acoustic, and Electromagnetic Synthesis () / / 51 SP /E Vol New Methods for Optical, Quasi - Optical, Acoustic, and Electromagnetic Synthesis () 51 = = = m Application of BRDF to computation of scatter is straightforward as illustrated by some to of scatter is straightforward as.

The size of the determinant depends on the number of points that were used for matching. 34 / SPIE Vol. New Methods for Optical, Quasi - Optical, Acoustic, and Electromagnetic Synthesis () / SPIE Vol.

New Methods for Optical, Quasi-Optical, Acoustic, and Electromagnetic - may be used to treat noncircular fibers with arbitrary core.

N^ b /XL and fc is the cut-off frequency. s i.e., s Ap = Employing the Nyquist sampling rate;4 sampling rate; 2f c 16 / SPIE Vol. New Methods for Optical, Quasi - Optical, Acoustic, and Electromagnetic Synthesis () / SPIE Vol. New Methods for Optical, Quasi-Optical, Acoustic, Electromagnetic and since w/NR Ap = w /NR Ap then 4N f NR.

Further, let us write I1(x1.y1) = Io(1 + IX xl) (8) / SPIE Vol. New Methods for Optical, Quasi-Optical, Acoustic, and Electromagnetic 64 / SPIE Vol.

New Methods for Optical, Quasi - Optical, Acoustic, and Electromagnetic Synthesis () and I 2 (x 2,y 2) IQ I2.Y2) = Io (9) We can see that I1 and I2 can be set equal to the Al and A2. Electromagnetic and Optical Pulse Propagation, () Microwave generation of X-waves by means of a planar leaky-wave antenna.

Applied Physics Letters A new diffraction synthesis method is proposed for computing quasioptical 2-D reflector beam splitters in the E-polarization case.

A new design of quasi-optical (QO) power divider at. A built-in electrodynamic duct consisting of a new type quasi-optical converter and three matching mirrors transforms operating mode TE15,4 into a gaussian beam going through the output window.

The principal goal of the book is to describe new accurate and robust algorithms for open resonant structures with substantially increased efficiency. These algorithms allow the extraction of complete information with estimated accuracy concerning the scattering of transient electromagnetic waves by complex objects.Multi-wave Electromagnetic-Acoustic Sensing and Imaging Fei Gao In this chapter, several novel aspects of EM-Acoustic fundamental methodologies research are proposed and discussed in detail.In this paper, a quasi-optical Bessel resonator (QOBR) for generating approximations to Bessel-type modes at millimeter wavelengths has been designed and analyzed.

A design approach is based on.