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  1. Phase Correction Technology Research and Improvement Based on Single-Sided Interferograms in FTIR

  2. In the Fourier transform infrared spectrometers the interferograms are usually sampled by the means of the single-side beyond zero path difference and the interferograms are asymmetric. These phase-corrected technologies are researched and improved i

  3. 所属分类：其它

    • 发布日期：2021-02-21
    • 文件大小：917504
    • 提供者：weixin_38734361

  1. Terahertz filters based on frequency selective surfaces for high-speed terahertz switch

  2. We design and fabricate two terahertz (THz) filters based on frequency selective surfaces’structures (FSSs) on single crystal sapphire substrate, which show high and low transmissivities toTHz electromagnetic waves, respectively. The difference of TH

  3. 所属分类：其它

    • 发布日期：2021-02-21
    • 文件大小：1048576
    • 提供者：weixin_38557768

  1. Design of ultra-compact wavelength splitter based on lithium niobate nanowire optical waveguides

  2. A wavelength splitter with ultra-compact and simple structure is proposed and analyzed by using both plane wave expansion (PWE) method and finite difference time domain (FDTD) method. The device is based on directional coupling between two parallel l

  3. 所属分类：其它

    • 发布日期：2021-02-21
    • 文件大小：194560
    • 提供者：weixin_38571453

  1. Electro-optically tunable microwave source based on composite-cavity microchip laser

  2. A compact and electric tuning microwave source based on a diode-pumped composite Nd:YAG-LiNbO3 cavity microchip laser is demonstrated. The electro-optical element introduces an electric tuning intra-cavity birefringence which causes a tunable freq

  3. 所属分类：其它

    • 发布日期：2021-02-21
    • 文件大小：839680
    • 提供者：weixin_38604653

  1. Novel Change Detection in SAR Imagery Using Local Connectivity

  2. Most change-detection techniques in synthetic aperture radar (SAR) imagery are based on the analysis of the difference image with a pixel-level decision approach. However, the pixel-level decision approach would cause a noisy change-detection map, wi

  3. 所属分类：其它

    • 发布日期：2021-02-21
    • 文件大小：432128
    • 提供者：weixin_38680671

  1. Compact wavelength splitter based on self-imaging principles in Bragg reflection waveguides

  2. The self-imaging phenomena in multimode Bragg reflection waveguides (BRWs) have been predicted andinvestigated by using the plane-wave expansion method and the finite-difference time-domain method. Acompact wavelength splitter based on self-imaging p

  3. 所属分类：其它

    • 发布日期：2021-02-21
    • 文件大小：906240
    • 提供者：weixin_38587509

  1. An all-optical buffer based on polarization rotation in an EAM

  2. A theoretical model of the refractive index changes of the TE and TM modes in an electro-absorption modulator (EAM) is deduced. The photon absorption and refractive index changes are analyzed numerically. The influence of pump intensity on the phase

  3. 所属分类：其它

    • 发布日期：2021-02-20
    • 文件大小：368640
    • 提供者：weixin_38750209

  1. Modified Debye model parameters of metals applicable for broadband calculations

  2. The finite-difference time-domain method can provide broadband results if the excitation source is a pulse. This demands that the parameters of modeled materials have to be applicable over broad frequency bands. We optimize the modified Debye model p

  3. 所属分类：其它

    • 发布日期：2021-02-20
    • 文件大小：747520
    • 提供者：weixin_38651929

  1. 差异：计算图像差异-源码

  2. 要求不高的差异 计算图像差异。 用法 use Undemanding \ Difference \ Image ; use Undemanding \ Difference \ Method \ EuclideanDistance ; $ image1 = new Image ( "/path/to/image1.png" ); $ image2 = new Image ( "/path/to/image2.png" ); $ difference = $ image1 -> diffe

  3. 所属分类：其它

    • 发布日期：2021-02-20
    • 文件大小：16384
    • 提供者：weixin_42176827

  1. Error analysis of reparametrization based approaches for curve offsetting

  2. This paper proposes an error analysis of reparametrization based approaches for planar curve offsetting. The approximation error in Hausdorff distance is computed. The error is bounded by O(r sin(2) beta), where r is the offset radius and beta is the

  3. 所属分类：其它

    • 发布日期：2021-02-20
    • 文件大小：664576
    • 提供者：weixin_38641150

  1. 基于小波变换的轨道摄动时间序列建模及仿真

  2. The analysis of orbital perturbation of satellite is the key for satellite orbit determination. However, orbital perturbation of satellite is a very complicate problem, which directly influences the precision and computation efficiency of orbit deter

  3. 所属分类：其它

    • 发布日期：2021-02-20
    • 文件大小：599040
    • 提供者：weixin_38545768

  1. 约翰-菲利普斯-getdatediff__1-47130-源码

  2. GetDateDiff 描述 这篇帖子是对auJohnm发布的Date and Time Difference的一种回应。 此函数使用VB中内置的DafeDiff函数返回字符串，例如“ 1个月，2周，4天”，而没有时差。 我只是在四处乱逛，想知道你的想法。 更多信息 提交时间 2003-07-23 16:53:14 经过 等级 中间的 用户评分 5.0（2个用户的10个地球仪） 兼容性 VB 6.0 类别 世界 存档文件

  3. 所属分类：其它

    • 发布日期：2021-02-14
    • 文件大小：4096
    • 提供者：weixin_42129300

  1. Negative refraction and reflection of Gaussian beam on two-dimensional photonic crystal slab

  2. The refraction and reflection of Gaussian beam on two-dimensional photonic crystal (2DPC) slab are studied by the finite-difference time-domain (FDTD) method. It is shown that 2DPC slab enables negative refraction, which is demystified by the distrib

  3. 所属分类：其它

    • 发布日期：2021-02-13
    • 文件大小：590848
    • 提供者：weixin_38717574

  1. A concave photonic crystal waveguide with a corrugated surface for high-quality focusing

  2. A concave two-dimensional (2D) photonic crystal waveguide (PCW) with corrugated surface is theoretically used as a focusing structure. To design this structure, a genetic algorithm is combined with the finite-difference time-domain method. For PCWs w

  3. 所属分类：其它

    • 发布日期：2021-02-13
    • 文件大小：1048576
    • 提供者：weixin_38535428

  1. Investigation on characteristics of self-organization in Mach-Zehnder erbium-doped fiber laser cavity

  2. The characteristics of coherent coupling in Mach-Zehnder erbium-doped fiber laser cavity are experimentally studied. By virtue of a seemly controlling of length difference between two interferometric arms, the obtained comb-like spectrum of interfero

  3. 所属分类：其它

    • 发布日期：2021-02-13
    • 文件大小：677888
    • 提供者：weixin_38692836

  1. Motion estimation based on an improved block matching technique

  2. An improved block-matching algorithm for fast motion estimation is proposed. The matching criterion is the sum of absolute difference. The basic idea is to obtain the best estimation of motion vectors by an optimization of the search process which ca

  3. 所属分类：其它

    • 发布日期：2021-02-13
    • 文件大小：260096
    • 提供者：weixin_38548507

  1. The optimum scheme of a static Fourier-transform spectrometer based on birefringent crystal

  2. An optimum design of static Fourier-transform spectrometer based on Savert prisms is presented in this paper. A new method of increasing path difference and resolution of spectrometer is given. When the angle between the crystal optical axis of the f

  3. 所属分类：其它

    • 发布日期：2021-02-12
    • 文件大小：439296
    • 提供者：weixin_38739942

  1. Compact all-optical switches based on photon-induced suppression of mode interference

  2. An optically activated optical switch based on suppression of mode interference (SMI) is presented. The imaging properties of multi-mode interference (MMI) section in the switch with Y-branch can be modified by a controlling light injection. The swit

  3. 所属分类：其它

    • 发布日期：2021-02-12
    • 文件大小：372736
    • 提供者：weixin_38662367

  1. Optimization of T-shaped waveguide branches in two-dimensional photonic crystals

  2. The interval and the radius of a pair of defect dielectric rods in waveguide channels near the branching region of a T-shaped waveguide branches are simultaneously varied, and their effects on the transmission properties are investigated using the fi

  3. 所属分类：其它

    • 发布日期：2021-02-12
    • 文件大小：467968
    • 提供者：weixin_38624746

  1. Femtosecond laser induced periodic large-scale surface structures on metals

  2. The periodic ripple structures on wolfram and titanium surfaces are induced experimentally by linear polarized femtosecond laser pulses at small incident angles. The structural features show a material difference in the s- and p-polarized laser irrad

  3. 所属分类：其它

    • 发布日期：2021-02-12
    • 文件大小：650240
    • 提供者：weixin_38574132
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