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61. Staring from Fresnel diffraction integral, we deduced the optical intensity distribution in the Fresnel zone of the diffraction field of the annular-aperture lens axicon.

62. Photopolymer is a new material for holographic storage; it has a number of compelling properties such as high diffraction efficiency, relatively simple fabrication process, and long persistence.

63. The exponential gain coefficient . diffraction efficiency, phases conjugate reflectivity a nd the response time were measured.

64. The sample wasandwas characterized by X - ray diffraction and scanning electron microscopy ( SEM ) .

65. Simulation and detailed analysis of low energy electron diffraction ( LEED ) data.

66. In order to acquire a high intensity and minimal scanning beam spot, diffraction analysis and optimal results have been presented.

67. The crystal structure, morphology and luminescent properties of samples were analyzed by the X-ray diffraction, field emission scanning electron microscope and spectrofluorometer, respectively.

68. When the initial power equals the critical power, a stabile spatial soliton is obtained, and generally the beam width takes periodical contraction or diffraction.

69. Based on discrete diffraction light, an algorithm of holographic grating bandwidth compression is proposed.

70. By this way we can design high diffraction efficiency, as well as lager numerical aperture diffractive lens under current machine fabrication condition.

71. Based on the theory of scalar diffraction and on the Fourier optics, a formula of the diffractive efficiency with alignment error for the 4 step Fresnel lens is obtained.

72. Geometrical Theory of Diffraction is a fundamental algorithm in electromagnetic radiating and scattering, and programming is a key step for its application.

73. It has put forward a imaging method of acoustic lens using photoacoustic signal and according to the Kirchhoff diffraction theory we deduced pulse response of acoustic lens.

74. In the paper a optical storage method based on the principle of grating diffraction is presented.

75. The result indicates that fractional Fourier transform is the proper mathematic tools to Fresnel diffraction.

76. The effect of testing factors, such as the different diffraction angle, step-length and scanning rate, was analyzed preliminarily on the X-ray diffraction(XRD) patterns in this paper.

77. The double - slit electron diffraction experiment is an ideal experiment for explaining the wave - particle duality.

78. The diffraction phenomena by a circular aperture or a phase plate is analyzed by the boundary diffraction wave theory, the analytic expression of its axial intensity is obtained.

79. And adopting a method of eight light beam exposure at the same time forms four focus hololens so that diffraction efficiency is increased. Real optical path system and experimental results are given.Sentencedict.com

80. In this paper the study on the dispersion theory, design, manufacture techniques, and efficiency test methods of diffraction gratings were made in a deep way.

81. Two forms of des-(B chain C-terminal pentapeptide) insulin crystals are grown for preliminary X-ray diffraction observations. Crystallographic data for these crystals have been obtained.

82. A full vector diffraction theory for optical disk system is described.

83. The change of the crystalline structure of UHMWPE fiber was studied by small angle X-ray scattering (SAXS) , wide angle X-ray diffraction ( WAXD) and Raman spectroscopy.

84. The zeolite HZSM-12 was synthesized and characterized by X-ray diffraction, electron micrography and adsorption.

85. By means of trigonometric calculation, the intensity distribution of diffraction grating is obtained.

86. The hydrogenator has been successfully used in the in-situ diffraction experiments on several deuterides.

87. The diffraction of super Gaussian beams by an elliptic annulus is studied numerically.

88. Some double crystal rocking curves of photocathode epitaxy materials and substrates are measured by means of X-ray double crystal diffraction in the bonding process.

89. X - ray diffraction was used to analyze the changes of petroleum coke microcrystalline during carbonization.

90. A complete design example of elliptical window optical system is demonstrated and the results show that the MTF of optical system approaches the diffraction limit across the entire scanning field.