Results 201 to 210 of about 1,184,514 (267)

Microwave Holograms and Optical Reconstruction

Applied Optics, 1967
Experiments on the construction of holograms using microwaves and the optical reconstruction of images were conducted. The microwave fields were detected by a diode which mechanically scans the field distribution. The electrical signals from the detector were amplified and converted to light signals which were recorded on photographic films by a camera
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3D volume reconstruction using hologram

2016 International Conference on Communication and Signal Processing (ICCSP), 2016
3D volume reconstruction technology is the new sign of future technology and communications. In 2008 this technology first received attention worldwide by Prince Charles addressed the World future energy summit and made his first appearance as a hologram in a bid to reduce the royal carbon footprint. In past it is known as the pepper's ghost technique.
Mohammedhusen H Manekiya, P. Arulmozhivarman   +1 more
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Reconstruction characteristics of polarization holograms

2012 11th Euro-American Workshop on Information Optics, 2012
The characteristics of the reconstruction of polarization holography are investigated in order to analyze the fundamental performance of polarization holographic memory system. It is found that, in general, the polarization state of the reconstructed signal is different from that of the recorded signal.
Kazuo Kuroda, Yusuke Matsuhashi, Tsutomu Shimura   +2 more
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Reflection hologram for reconstructing deep images:?errata

Optics Letters, 1998
On p. 1725 of Ref. 1, in the 20th line in the righthand column, the printed phrase "two-step time diffraction" should read as "two-step diffraction."
Y, Taketomi, T, Kubota
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Image Reconstruction with Fraunhofer Holograms*

Journal of the Optical Society of America, 1966
The holograms considered are formed from opaque or transparent diffracting objects which are contained in an aperture illuminated with a coherent, collimated, quasimonochromatic beam of light. It has been shown that the intensity distribution in the near-field of the aperture, but in the far-field of the individual objects which are contained in the ...
John B. DeVelis, George B. Parrent, Brian J. Thompson   +2 more
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Iterative reconstruction of in-line electron holograms

Micron, 2005
In low energy electron point source (LEEPS) microscopy, electrons emerge from a point source, propagate as spherical waves, and arrive at a screen. Some electrons scatter off an object, i.e. a cluster of atoms, placed between the source and the screen; others arrive at the screen without scattering.
Jose F, Arocena, Timothy A, Rothwell, Mark R A, Shegelski   +2 more
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Electronic reconstruction of acoustic holograms

IEEE Transactions on Audio and Electroacoustics, 1970
A method is described for reconstructing acoustic hologram images using an electronic means which avoids multiple image formation. When the dimensions of the hologram are small compared to the dimensions of the viewing area, the incident waves are approximately plane rather than spherical.
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SOUND HOLOGRAMS AND OPTICAL RECONSTRUCTION

Applied Physics Letters, 1966
A hologram has been made of an object illuminated by ultrasound, using the deformation of the water surface by radiation pressure. An optical reconstruction of this sound hologram with laser light has been achieved.
R. K. Mueller, N. K. Sheridon
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Reconstruction of Inhomogeneous Scattering Objects from Holograms

Applied Optics, 1974
An experiment is reported in which the one-dimensional scattering potential along a line through a semitransparent bar with nonuniform index of refraction is determined from holographic measurements of scattered monochromatic light waves. The experiment is performed using an inhomogeneous bar for the first time in order to test quantitatively a ...
W H, Carter, P C, Ho
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Large objects reconstructed from computer-generated holograms

Applied Optics, 1989
In digital holography the first step is the determination of the complex amplitude in the hologram. Large objects can be synthesized from tilted planar segments. In the calculation step, configurations of inclined object and inclined hologram plane are considered. The Fresnel transformation is generalized, and its implementation is discussed.
C, Frère, D, Leseberg
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