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A Simiple Method to Speed up the Calculation of a Computer-Generated Hologram
Advanced Materials Research, 2011 The calculation speed is one of most dofficult problems for a computer-generated hologram of an object. This is due to the facts that both the pixel number of an object and that of the hologram are very large.
Zhi Guang Zhou +3 more
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Binary computer-generated holograms
Applied Optics, 1979Binary computer-generated holograms are similar to interferograms with fringe patterns hardclipped by a photographic process. Therefore the fringe locations in the binary hologram can be determined by solving a grating equation. However, there are two difficulties in using this approach to make binary Fourier transform holograms.
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Disk hologram made from a computer-generated hologram
Applied Optics, 2009We have been investigating disk holograms made from a computer-generated hologram (CGH). Since a general flat format hologram has a limited viewable area, we usually cannot see the other side of the reconstructed object. Therefore, we propose a computer-generated cylindrical hologram (CGCH) to obtain a hologram with a 360 deg viewable area.
Takeshi, Yamaguchi +2 more
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Computer-generated holograms for geometric transformations
Applied Optics, 1984Theory and experiments in the area of computer-generated holograms for geometric transformations are presented. Geometric transform holograms are divided into two categories: (1) those which have a continuous fringe structure, and (2) those which consist of a set of discrete subholograms.
J, Cederquist, A M, Tai
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Computer-generated double-phase holograms
Applied Optics, 1978A method of computer generating binary holograms based on the decomposition of a complex value into two phase quantities is described. Each Fourier transform cell is divided into subcells, and phase quantities are encoded by the detour phase technique. Noise due to the displacement of the subcells and the phase coding is discussed.
C K, Hsueh, A A, Sawchuk
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Rotational control of computer generated holograms
Optics Letters, 2017We develop a basis for three-dimensional rotation of arbitrary light fields created by computer generated holograms. By adding an extra phase function into the kinoform, any light field or holographic image can be tilted in the focal plane with minimized distortion.
Preece, Daryl +1 more
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Polarization-selective computer-generated holograms
Optics Letters, 1993We demonstrate polarization-selective computer-generated holograms with independent phase profiles for the two orthogonal linear polarizations. The holograms are made of two surface-relief-etched birefringent substrates joined face to face. We describe their design and fabrication and present experimental results for dual binaryphase computer-generated
J E, Ford +3 more
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Computer-generated holograms with error compensation
Applied Optics, 1988We analyze computer-generated holograms (CGH) of Lohmann types I and III and discuss their overall errors employing the following modifications, listed in order of increasing importance: phase-only correction (Ptype), virtual increase of the cell number, optimized use of the available plotting area, expansion of the amplitude dynamic range (D-type ...
W, Freude +3 more
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Computer-Generated Cylindrical Hologram
Adaptive Optics: Analysis and Methods/Computational Optical Sensing and Imaging/Information Photonics/Signal Recovery and Synthesis Topical Meetings on CD-ROM, 2007It is difficult to make a computer-generated cylindrical hologram due to the needs of high resolution output and huge computation. We propose a new approach to calculate the cylindrical hologram of the 3D object.
Takeshi Yamaguchi +2 more
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Computer Generated Holograms for Optical Neural Networks
Applied Intelligence, 2001zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Khosrow Kaikhah, F. Loochan
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