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High-efficiency multilayer dielectric diffraction gratings
Optics Letters, 1995The 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 +6 more
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Diffraction efficiency of holographic blazed diffraction gratings
Czechoslovak Journal of Physics, 1991Holographic 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, 1980This 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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Optics Letters, 2000
The theoretical diffraction efficiency upper limit of diffractive phase elements (DPE's) with finite apertures is investigated. A successful numerical method of evaluating the efficiency upper bound of DPE's is proposed. The method includes a hybrid optimization procedure that combines a genetic algorithm with the conjugate gradient method.
G, Zhou +4 more
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The theoretical diffraction efficiency upper limit of diffractive phase elements (DPE's) with finite apertures is investigated. A successful numerical method of evaluating the efficiency upper bound of DPE's is proposed. The method includes a hybrid optimization procedure that combines a genetic algorithm with the conjugate gradient method.
G, Zhou +4 more
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Modeling diffraction efficiency effects when designing hybrid diffractive lens systems
Applied Optics, 1992We investigated the design of two broadband hybrid diffractive-refractive optical systems, a landscape lens, and a Schmidt telescope. The systems were achromatized by using the characteristically large negative dispersion of kinoforms. In the scalar wave regime kinoforms can approach 100% efficiency but only for one object point and wavelength.
C, Londoño, P P, Clark
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Diffractive elements of variable optical power and high diffraction efficiency
Applied Optics, 1993The generation of diffractive elements of variable optical parameters and high diffraction efficiency is presented. It can be realized by a superposition of two conjugate kinoforms. In particular, the method gives rise to zone plates of variable focusing power as well as to circular and linear gratings of variable deflection angles.
A, Kolodziejczyk, Z, Jaroszewicz
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SPIE Proceedings, 2016
In this dissertation, the mathematical model of effect of manufacturing errors including microstructure relative height error and relative width error on diffraction efficiency for the harmonic diffractive optical elements (HDEs) is set up. According to the expression of the phase delay and diffraction efficiency of the HDEs, the expression of ...
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In this dissertation, the mathematical model of effect of manufacturing errors including microstructure relative height error and relative width error on diffraction efficiency for the harmonic diffractive optical elements (HDEs) is set up. According to the expression of the phase delay and diffraction efficiency of the HDEs, the expression of ...
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Performance of diffractive lenses with nonunity diffraction efficiency
Optical Society of America Annual Meeting, 1990The unique optical properties of diffractive optical elements make them attractive candidates for a wide variety of applications. Unlike conventional optical elements, however, diffractive optics can simultaneously produce more than one image, resulting from the various diffracted orders.
Dale A. Buralli, G. Michael Morris
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High diffraction efficiency, broadband, diffraction crystals for use in crystal diffraction lenses
Experimental Astronomy, 2006A major goal of the MAX program is to detect and measure gamma rays produced following the nuclear reactions that take place in a supernova explosion. To detect a reasonable number of supernovae, sensitivities of the order of a few times 10-7 γ cm-2sec-1 are needed — much better than possible with current instruments. The approach in the MAX program is
Robert K. Smither +5 more
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Diffraction efficiency of nonsynchronously sampled diffraction gratings
Optical Engineering, 2002This PDF contains the communication "Diffraction efficiency of nonsynchronously sampled diffraction gratings."
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