Results 281 to 290 of about 390,346 (343)

Diffraction efficiency restoration method for a single-plane diffractive element considering machining errors

Xian Zhang, Mingxu Piao, Huike Zou, Yi-Han Lou, Junsong Wang, Yuzhen Tong, Haoran Wang, Jie Zhang, Zonglin Liang   +8 more
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Plasmonic effect-driven strategy for boosting photoelectrocatalytic degradation of rhodamine B using a SnS₂/Au self-supported photoelectrode. [PDF]

RSC Adv
Tian Y, Zhang Q, Zhang J, Ren C, Liu X.
europepmc   +1 more source

Enzyme-Mediated Precipitation of Heavy Metals Using Urease Extracted from <i>Sporosarcina pasteurii</i>. [PDF]

Iran J Biotechnol
Joukar A, Mohammadi M, Ghezelbash GR.
europepmc   +1 more source

Impact of NVP Doping on the Holographic Properties of PQ/PMMA Holographic Storage Materials. [PDF]

Polymers (Basel)
Peng L, Wu J, Zheng S, Liu H, Xiong R, Chen X, Zheng X, Lin X, Tan X.   +8 more
europepmc   +1 more source

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High-diffraction-efficiency pseudorandom encoding

Journal of the Optical Society of America A, 2000
Pseudorandom encoding (PRE) is a statistics-based procedure in which a pure-phase spatial light modulator (SLM) can yield, on the average, the prescribed diffraction pattern specified by the user. We seek to combine PRE with the optimization of an aperture-based target function.
Y, Yang, H, Stark, D, Gurkan, C L, Lawson, R W, Cohn   +4 more
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Diffraction efficiency of random binary-amplitude diffracting screens

Applied Optics, 1994
The diffraction characteristics of random binary-amplitude diffracting screens are investigated. It is shown that, for such a random diffracting screen with complex amplitude transmittance t equal to either 0 or 1, the diffraction efficiency of the screen is maximized when 50% of the screen has transmittance t = 1, independent of other characteristics ...
W T, Rhodes, M S, McMeekin
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Efficiency analysis of diffractive lenses

Journal of the Optical Society of America A, 2001
Multilevel diffractive optical elements are necessary for achieving high-efficiency performance. Here the diffraction efficiency of a multilevel phase-only diffractive lens is analyzed. Approximate, as well as more accurate, approaches are presented. Both plane-wave and Gaussian illumination are discussed.
U, Levy, D, Mendlovic, E, Marom
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High-efficiency multilayer dielectric diffraction gratings

Optics Letters, 1995
The design and performance of a new type of high-efficiency diffraction grating for use in either transmission or reflection are described. The gratings are produced in a multilayer dielectric coating deposited upon optically flat substrates. By proper design of the multilayer stack and grating structure, a diffraction efficiency in excess of 96% for ...
M D, Perry, R D, Boyd, J A, Britten, D, Decker, B W, Shore, C, Shannon, E, Shults   +6 more
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Diffraction efficiency of holographic blazed diffraction gratings

Czechoslovak Journal of Physics, 1991
Holographic blazed diffraction grating is analysed as a periodic relief of an inclined sinusoidal curve in the shallow profile approximation. Under the condition that the rate of the development is a linear function of the development dose the evolution of the relief during the development is discussed.
I. Aubrecht, M. Miler
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Scattering from high efficiency diffraction gratings

Applied Optics, 1980
This paper has characterized and measured scatter from high efficiency and reflective diffraction gratings. Three major types of scatter are identified: (1) random, which occurs over 27pi sr; (2) band or ghost scatter, which occurs in the plane of incidence; and (3) structured scatter, which is a symmetrical pattern repeated about each order ...
G J, Dunning, M L, Minden
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