Results 241 to 250 of about 9,704,193 (294)
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Nano Letters, 2007
Far-field optical lens resolution is fundamentally limited by diffraction, which typically is about half of the wavelength. This is due to the evanescent waves carrying small scale information from an object that fades away in the far field. A recently proposed superlens theory offers a new approach by surface excitation at the negative index medium ...
Zhaowei, Liu +7 more
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Far-field optical lens resolution is fundamentally limited by diffraction, which typically is about half of the wavelength. This is due to the evanescent waves carrying small scale information from an object that fades away in the far field. A recently proposed superlens theory offers a new approach by surface excitation at the negative index medium ...
Zhaowei, Liu +7 more
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THE NEAR FIELD TO FAR FIELD TRANSFORMATION
COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, 1995If a scattering problem is solved by finite element, finite volume or finite difference methods, it is necessary to predict the far field pattern (or radar cross‐section) by using a near field to far field transformation. Usually this is done using the Stratton‐Chu integral relations, which give the far field pattern in terms of a near field surface ...
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Far‐field potentials in muscle
Muscle & Nerve, 1991AbstractFar‐field potentials have been predicted by computer simulations as well as demonstrated in both animals and humans with respect to the peripheral and central nervous systems. Computer simulations have also predicted far‐field potentials originating at the termination of muscle tissue.
D, Dumitru, J C, King
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2015 Conference on Microwave Techniques (COMITE), 2015
The design of completely rebuilt antenna far-field range is described. The results of new measurement campaign are given for various cases. The paper analyzes briefly electromagnetic wave propagation over irregular terrain by physical optics approximation of vector problem using an enhanced analysis.
Schejbal Vladimír +4 more
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The design of completely rebuilt antenna far-field range is described. The results of new measurement campaign are given for various cases. The paper analyzes briefly electromagnetic wave propagation over irregular terrain by physical optics approximation of vector problem using an enhanced analysis.
Schejbal Vladimír +4 more
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Superresolution in far-field imaging
Optics Letters, 2000We demonstrate the feasibility of achieving superresolved images by using Fourier-plane phase masks and image multiplication, which together create effective point-spread functions that are not positive definite and therefore cannot be created by any single Fourier plane mask in a linear system.
Leiserson, I. +2 more
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Far field of polarization gratings
Optics Letters, 1999In a recent Letter [Opt. Lett. 24, 584 (1999)], Gori analyzed polarization gratings and proposed using them as a tool to measure Stokes parameters. Most of his analysis dealt with the near field, but practical exploitation of his approach relies on the far field.
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2007
In asking you, the reader, to metaphorically Step into “Heidegger’s Shoes” I am suggesting that the provisional “truth” of the equipmentality of this text be allowed to fall away to reveal an other-place. The interpretation of the text becomes yours. The collective action of both I, as author, and you, as reader, merely presents the start of a process ...
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In asking you, the reader, to metaphorically Step into “Heidegger’s Shoes” I am suggesting that the provisional “truth” of the equipmentality of this text be allowed to fall away to reveal an other-place. The interpretation of the text becomes yours. The collective action of both I, as author, and you, as reader, merely presents the start of a process ...
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The Near Field and the Far Field
2012The essential information for practical metrology is presented in this chapter, including a brief summary of the near-field properties as well as the basic equations and formulas related to fields generated by simple radiation sources.
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Field Trip to a Galaxy Far, Far Away
Journal of Geoscience Education, 2000The fictional worlds of the Star Wars universe can be effectively used as teaching examples in planetary science. Because of the immense popularity of the Star Wars series, most students are already familiar with the movies and the worlds featured in them. Using fictional planets as teaching tools provides a context in which there are no right or wrong
Leslie Louise Baker +1 more
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