Multilayer structure having a (111)-oriented buffer layer
    3.
    发明授权
    Multilayer structure having a (111)-oriented buffer layer 失效
    具有(111)取向缓冲层的多层结构

    公开(公告)号:US5347157A

    公开(公告)日:1994-09-13

    申请号:US992213

    申请日:1992-12-17

    摘要: A multilayer structure comprising in order: a (111)-oriented single crystal substrate and an epitaxial metal oxide buffer layer. The substrate is doped or undoped. The substrate is a semiconductor selected from the group consisting of Si compounds, Ge compounds, and compounds having at least one element selected from the group consisting of Al, Ga, and In and at least one element selected from the group consisting of N, P, As, and Sb. The substrate defines a substrate superlattice dimension equal to 3 times a sublattice constant of the substrate. The epitaxial metal oxide buffer layer has a three-fold rotation symmetry about the substrate (111) direction. The buffer layer defines a buffer layer superlattice dimension equal to 4 times the oxygen-to-oxygen lattice spacing of the buffer layer. The buffer layer superlattice dimension is within 15 percent of the substrate superlattice dimension.

    摘要翻译: 一种多层结构,其顺序包括:(111)取向的单晶衬底和外延金属氧化物缓冲层。 衬底是掺杂或未掺杂的。 衬底是选自Si化合物,Ge化合物和具有选自Al,Ga和In中的至少一种元素的化合物的半导体,以及选自N,P ,As和Sb。 衬底限定了等于衬底的次晶格常数的3倍的衬底超晶格尺寸。 外延金属氧化物缓冲层围绕基板(111)方向具有三重旋转对称性。 缓冲层限定了等于缓冲层的氧 - 氧晶格间距的4倍的缓冲层超晶格尺寸。 缓冲层超晶格尺寸在衬底超晶格尺寸的15%以内。

    Waveguide nonlinear optical frequency converter with integral modulation
and optimization means
    7.
    发明授权
    Waveguide nonlinear optical frequency converter with integral modulation and optimization means 失效
    波导非线性光变频器具有积分调制和优化手段

    公开(公告)号:US5317666A

    公开(公告)日:1994-05-31

    申请号:US953925

    申请日:1992-09-29

    IPC分类号: G02F1/35 G02F1/377 G02B6/10

    CPC分类号: G02F1/3775 G02F2001/3546

    摘要: An optical, waveguide, quasi-phase-matching frequency converter has integral means to vary the efficiency of the quasi-phase-matching frequency conversion process resulting in intensity modulation of the device output; said frequency converter has integral means to optimize the quasi-phase-matching frequency conversion process resulting in optimum device output; and said frequency converter has integral input signal polarization mode conversion means in optional combination with the conversion optimization means for modulating the optimized device output. Methods for modulating and optimizing the quasi-phase-matching frequency converted signal by electro-optically controlling the dispersion of the frequency converting medium are also disclosed.

    摘要翻译: 光学,波导,准相位匹配频率转换器具有改变准相位匹配频率转换过程的效率的整体手段,导致器件输出的强度调制; 所述变频器具有优化准相位匹配频率转换过程的集成手段,从而产生最佳的器件输出; 并且所述变频器具有与用于调制优化的器件输出的转换优化装置的可选组合的积分输入信号偏振模式转换装置。 还公开了通过电光控制变频介质的色散来调制和优化准相位匹配频率转换信号的方法。

    Multicolor light valve imaging apparatus having electrode constructions
for uniform transmission
    8.
    发明授权
    Multicolor light valve imaging apparatus having electrode constructions for uniform transmission 失效
    具有用于均匀透射的电极结构的多色光阀成像装置

    公开(公告)号:US4822148A

    公开(公告)日:1989-04-18

    申请号:US100058

    申请日:1987-09-23

    CPC分类号: G02F1/0551 G06K15/129

    摘要: A light modulator device for use in a light valve imaging system to image print media with different light colors comprising a panel of electro-optic material of the type which changes the polarization of transmitted light selectively upon application of an electric field and a plurality of electrode pairs, linearly spaced along the panel to define an array of modulator gap portions between respective electrode pairs. The modulator gap portions associated with different color filters have a different dimension selected respectively to effect maximum light transmission for different light colors under address by approximately the same voltage.

    摘要翻译: 一种用于光阀成像系统中的光调制器装置,用于对具有不同光颜色的打印介质进行成像,该打印介质包括在施加电场和多个电极时选择性地改变透射光的偏振的类型的电光材料面板 对,沿着面板线性间隔以限定各个电极对之间的调制器间隙部分的阵列。 与不同滤色器相关联的调制器间隙部分具有分别选择的不同尺寸,以通过大致相同的电压来实现地址处不同光颜色的最大光透射。

    Scan-multiplexed light valve printer with band-reducing construction
    9.
    发明授权
    Scan-multiplexed light valve printer with band-reducing construction 失效
    具有减带结构的扫描复用光阀打印机

    公开(公告)号:US4797694A

    公开(公告)日:1989-01-10

    申请号:US99954

    申请日:1987-09-23

    CPC分类号: G06K15/1252 H04N1/192

    摘要: A system for improving the uniformity of light valve imaging apparatus of the kind having an array of spaced light valve portions, a source for directing generally uniform illumination through the light valve portions, and means for scan-indexing the light valve image along an image zone. The improved system comprises source-scan means for scanning the source illumination onto the light valve array in synchronism with the scan-indexing of the light valve image.

    摘要翻译: 一种用于改善具有间隔开的光阀部分阵列的类型的光阀成像装置的均匀性的系统,用于引导通过光阀部分的大致均匀照明的光源,以及用于沿着图像区域扫描光阀图像的装置 。 改进的系统包括源扫描装置,用于与光阀图像的扫描索引同步地将源照明扫描到光阀阵列上。

    Frequency conversion in inorganic thin film waveguides by
quasi-phase-matching
    10.
    发明授权
    Frequency conversion in inorganic thin film waveguides by quasi-phase-matching 失效
    无机薄膜波导通过准相位匹配进行变频

    公开(公告)号:US5295218A

    公开(公告)日:1994-03-15

    申请号:US953926

    申请日:1992-09-29

    IPC分类号: G02F1/377 G02B6/10 G02F2/02

    CPC分类号: G02F1/3775

    摘要: A frequency converter/mixer has a crystalline substrate which supports an inorganic, crystalline, nonlinear optical thin film having a higher index of refraction than the substrate, to form an optical waveguide. Input radiation of frequency .omega..sub.1 which enters the waveguide propagates through the waveguide and exits as radiation having a different frequency .omega..sub.2. The frequency conversion of the input radiation is accomplished by first-order quasi-phase-matching the input and output signals as a result of the periodicity of the sign-alternating nonlinear dielectric susceptibility coefficient of the optical thin film over an active region of the waveguide. A method of first-order quasi-phase-matching is also disclosed.

    摘要翻译: 变频器/混频器具有支撑具有比衬底更高折射率的无机,结晶非线性光学薄膜的结晶衬底,以形成光波导。 进入波导的频率(ω)1的输入辐射通过波导传播并作为具有不同频率(ω)2的辐射而离开。 输入辐射的频率转换是通过对波导的有源区域上的光学薄膜的符号交替非线性介电磁化率系数的周期性的一阶准相位匹配来实现的。 。 还公开了一阶准相位匹配的方法。