Results 161 to 170 of about 2,745 (217)
Orbital angular momentum- and frequency-dependent high-capacity encrypted hologram through multi-dimensional multiplexing acoustic metasurface. [PDF]
Nat CommunZhou YQ +6 more
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Propagation-adaptive 4K computer-generated holography using physics-constrained spatial and Fourier neural operator. [PDF]
Nat CommunLiu N, Liu K, Yang Y, Peng Y, Cao L.
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Binocular holographic display based on the holographic optical element
Journal of the Optical Society of America A, 2022Due to the limited pixel pitch of the spatial light modulator (SLM), the field of view (FOV) is insufficient to meet binocular observation needs. Here, an optimized controlling light method of a binocular holographic three-dimensional (3D) display system based on the holographic optical element (HOE) is proposed.
Xiujuan Qin +8 more
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Bandwidth of holographic optical elements
Optics Letters, 1982The diffraction efficiency, bandpass, and spurious beam rejection are studied for the holographic cascade lens that consists of a diffraction grating in contact with an off-axis zone plate. An analysis is presented for the bandpass of the volume diffraction grating, including the effects of grain polarizability.
T, Stone, N, George
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Stratified volume holographic optical elements
Optics Letters, 1986Volume holographic optical elements are of considerable interest for applications in optical information processing and computing systems and in optical interconnect technology. Typical volume holographic optical elements are fabricated from bulk photosensitive materials, such that the holographic recording process occurs throughout the entire volume ...
R V, Johnson, A R, Tanguay
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Optically switched volume holographic elements
Optics Letters, 1995We optically switched the diffraction efficiency of volume holographic elements recorded in DMP-128 photopolymer by use of a thermal nonlinearity of the liquid crystal 5CB. The liquid crystal was incorporated into the volume grating. The diffraction efficiency of small areas of the grating was switched with a control beam power of several milliwatts ...
M S, Malcuit, T W, Stone
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Design for polarizing holographic optical elements
Applied Optics, 1995We present results of the application of a three-dimensional rigorous-vector coupled-wave theory to the design of polarizing holographic optical elements. Two different cases have been selected giving rise to two types of element, one of which is completely original. Experimental realizations were performed.
S, Habraken +4 more
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Journal of Optical Technology, 2007
This paper discusses the distinctive features of holographic optical elements. The principles and techniques for obtaining them are explained. The main parameters of various types of such elements are given, along with examples of using them in optical technology and instrumentation.
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This paper discusses the distinctive features of holographic optical elements. The principles and techniques for obtaining them are explained. The main parameters of various types of such elements are given, along with examples of using them in optical technology and instrumentation.
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Wavelength performance of holographic optical elements
Applied Optics, 1985A comprehensive treatment is presented for the diffraction efficiencies of transmission holographic elements and cascade lenses when subject to broad spectral and field angle detunings. Experimental measurements are made in support of our theory on holographic optical elements fabricated in bleached silver-halide emulsions and in dichromated gelatin ...
T, Stone, N, George
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SPIE Proceedings, 1989
The possibility of storing lightwaves on holographic material can not only be used for recording and reconstructing of three-dimensional objects, but also to deflect lightwaves in an unconventionally manner and for divergent an focusing properties. This kind of specific holograms, which hold imaging properties are called Holographic Optical Elements ...
openaire +1 more source
The possibility of storing lightwaves on holographic material can not only be used for recording and reconstructing of three-dimensional objects, but also to deflect lightwaves in an unconventionally manner and for divergent an focusing properties. This kind of specific holograms, which hold imaging properties are called Holographic Optical Elements ...
openaire +1 more source