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101. 发明授权

US06930776B2 High optical rejection optical spectrum analyzer/monochromator 有权
标题翻译：高光抑制光谱分析仪/单色仪
公开(公告)号：US06930776B2
公开(公告)日：2005-08-16
申请号：US10625528
申请日：2003-07-24
申请人： Gang He , Daniel Gariépy
发明人： Gang He , Daniel Gariépy
IPC分类号： G01J3/18 , G01J3/28
CPC分类号： G01J3/02 , G01J3/0202 , G01J3/021 , G01J3/0224 , G01J3/0294 , G01J3/18 , G01J2003/1819
摘要： A dual-channel, double-filtering, multi-pass OSA having a narrow spectral linewidth response and high ORR comprises a diffraction grating (DG), two input ports (P1′, P1″) for directing first and second input light beams (LR, LT) onto the grating; a retroreflector (RAM1) for returning the dispersed light beams to the grating for dispersion again; two intermediate output ports (P2′, P2″) for receiving the twice-dispersed light beams; two secondary input ports (P3′, P3″) coupled to the intermediate output ports by polarization-maintaining waveguides (PMF2′, PMF2″) for directing the light beams onto the grating a third time, with their SOPs having a predetermined orientation relative to the SOPs of the first and second light beams when first incident upon the grating, the retroreflector (RAM1) returning the three-times-dispersed light beams to the grating for dispersion a fourth time; and two output ports (P4′, P4″) for receiving the light beams after dispersion the fourth time.
摘要翻译：具有窄光谱线宽响应和高ORR的双通道双滤波多通道OSA包括衍射光栅（DG），用于引导第一和第二输入光的两个输入端口（P 1'，P 1“）光束（LR，LT）到光栅上; 用于将分散的光束返回到光栅以用于再次分散的后向反射器（RAM1）; 用于接收两倍分散光束的两个中间输出端口（P 2'，P 2“）; 通过偏振保持波导（PMF 2'，PMF 2“）耦合到中间输出端口的用于将光束第三次引导到光栅上的两个次级输入端口（P 3'，P 3”），其SOP 当第一次入射到光栅上时，具有相对于第一和第二光束的SOP的预定取向，后向反射器（RAM1）将三次分散的光束第四次返回到光栅以进行分散; 以及用于在第四次分散之后接收光束的两个输出端口（P 4'，P 4“）。

102. 发明授权

US06636306B2 Optical spectrum analyzer 有权
标题翻译：光谱分析仪
公开(公告)号：US06636306B2
公开(公告)日：2003-10-21
申请号：US09753673
申请日：2001-01-04
申请人： Gang He , Daniel Gariépy , Gregory Walter Schinn
发明人： Gang He , Daniel Gariépy , Gregory Walter Schinn
IPC分类号： G01J328
CPC分类号： G01J3/447 , G01J3/12
摘要： An optical spectrum analyzer comprises a diffraction grating (DG), a polarization decomposing unit (PDM) for decomposing the input light beam into first and second light beams having mutually-perpendicular linear states of polarization, and two output ports (FP2/1, FP2/2) each for receiving from the grating, substantially exclusively, a respective one of the polarized light beams (LT, LR) after diffraction by the diffraction grating (DG). Each of the linearly-polarized light beams is directed onto the diffraction grating with its linear state of polarization at any prescribed angle to a corresponding plane of diffraction of the diffraction grating The arrangement is such that the state of polarization of the light beams, at any particular wavelength within an operating band of the analyzer remains substantially unchanged with respect to time, The analyzer also may have a reflector (RAM) for reflecting the light beams leaving the diffraction grating after diffraction a first time so as to return them to the diffraction grating for diffraction a second time.
摘要翻译：光谱分析仪包括衍射光栅（DG），用于将输入光束分解成具有相互垂直的极化状态的第一和第二光束的偏振分解单元（PDM）和两个输出端口（FP2 / 1，FP2 / 2），每个用于在衍射光栅（DG）衍射之后从光栅接收基本上仅相应的一个偏振光束（LT，LR）。每个线性偏振光束以与其衍射光栅的相应衍射平面成任意规定角度的线性极化状态被引导到衍射光栅上。这种布置使得光束的偏振状态分析仪的工作频带内的特定波长相对于时间保持基本不变。分析仪还可以具有用于在衍射之后第一次反射离开衍射光栅的光束的反射器（RAM），以便将它们返回到衍射光栅用于衍射第二次。

103. 发明授权

US06621067B2 Polarization independent photodetector device and method of making same 失效
标题翻译：极化独立光电探测器及其制作方法
公开(公告)号：US06621067B2
公开(公告)日：2003-09-16
申请号：US09796796
申请日：2001-03-02
申请人： Gang He , François Babin , Martin Tremblay , Marc Breton , Steeve Potvin , Gregory Walter Schinn
发明人： Gang He , François Babin , Martin Tremblay , Marc Breton , Steeve Potvin , Gregory Walter Schinn
IPC分类号： G02F101
CPC分类号： H01L31/0203 , G02B6/4204 , G02B6/4292 , H01L31/02325
摘要： A photodetector device comprising a photosensitive detector (12; 96) and one or more interfaces (20′, 20″, 28, 98) between dissimilar media is configured so that a light beam (LB) for detection will pass through the interface(s) along a beam axis that is not normal to the interface(s). The deviation (&thgr;) from the normal will be such that polarization dependent transmission introduced at the interface(s) will compensate for inherent polarization dependency of the detector (12; 96). The deviation may be achieved by inclining the interface(s) relative to a predetermined direction along which the light beam will be incident. Where the photosensitive detector is in a housing (84) with a window (20) through which the light beam enters the housing, the housing can be tilted. In such as case, there are three interfaces, one (28; 98) at the surface of the detector (12; 96), and one at each surface (20′, 20″) of the window (20). Alternatively, the detector surface and/or the window could be tilted. Where a pigtail fiber (116) is permanently attached to the photodetector device to input the light beam through an interposed lens (106), the end of the pigtail fiber may be offset laterally from the lens optical axis (LOA) so that the beam axis deviates from the normal by such an angle that the resulting polarization dependent transmission (PDT) substantially corrects for polarization dependent response (PDR) of the photosensitive detector. An end facet of the pigtail fiber, the lens, and/or the window may be inclined so that they are not perpendicular to the propagation direction of the light beam so as to reduce interference and backreflection effects.
摘要翻译：包括光敏检测器（12; 96）和不同介质之间的一个或多个接口（20'，20“，28,98）的光检测器设备被配置为使得用于检测的光束（LB）将通过接口 s）沿着不垂直于接口的波束轴。与正常的偏差（θ）将使得在界面处引入的偏振相关传输将补偿检测器（12; 96）的固有偏振依赖性。可以通过使界面相对于光束入射的预定方向倾斜来实现偏差。在光敏检测器位于具有窗口（20）的壳体（84）中，光束通过该窗口进入壳体，壳体可以倾斜。在这种情况下，在检测器（12; 96）的表面处有三个界面，一个（28; 98），一个在窗口（20）的每个表面（20'，20“）处。或者，检测器表面和/或窗口可以倾斜。在猪尾纤维（116）永久地附接到光电检测器装置以通过中介透镜（106）输入光束的情况下，猪尾纤维的端部可以从透镜光轴（LOA）侧向偏移，使得光束轴线偏离正常，使得所得到的偏振相关透射（PDT）基本上校正光敏检测器的偏振相关响应（PDR）。引线纤维，透镜和/或窗口的端面可以倾斜，使得它们不垂直于光束的传播方向，以便减少干涉和背反射效应。

104. 发明授权

US06514863B1 Method and apparatus for slurry distribution profile control in chemical-mechanical planarization 失效
标题翻译：化学机械平面化中浆料分布剖面控制的方法和装置
公开(公告)号：US06514863B1
公开(公告)日：2003-02-04
申请号：US09513709
申请日：2000-02-25
申请人： Gang He
发明人： Gang He
IPC分类号： H01L21302
CPC分类号： B24B37/04 , B24B57/02 , H01L21/31053
摘要： A nonplanar substrate surface is substantially uniformly planarized by a chemical mechanical planarization (CMP) process. The CMP process uses multiple sources of slurry delivered in between a slurry distribution screen and a slurry membrane of the CMP apparatus. The multiple slurry sources have differing chemical and physical compositions, and are delivered to different locations along the membrane. The slurries bleed into each other during polish to form a radially-variable, slurry abrasiveness concentration gradient. As a result, there are areas with a greater abrasiveness concentration of slurry, and hence a greater frictional contact. The slurry flow rate and concentration is adjusted along the wafer surface according to the non-uniformly planar areas of the wafer. Consequently, uniform planarization is substantially achieved.
摘要翻译：通过化学机械平坦化（CMP）工艺基本均匀地平坦化非平面基底表面。 CMP工艺使用在浆料分布筛和CMP装置的浆膜之间输送的多种浆料来源。多个浆料源具有不同的化学和物理组成，并且沿着膜被递送到不同的位置。在抛光期间，浆料彼此渗出以形成径向变化的浆料磨蚀性浓度梯度。因此，存在具有较大磨料浓度的区域，因此具有较大的摩擦接触。根据晶片的非均匀平面区域，沿着晶片表面调整浆料流速和浓度。因此，基本上实现了均匀的平坦化。

105. 发明授权

US6037614A Methods for manufacturing group IV element alloy semiconductor materials and devices that include such materials 失效
标题翻译：制造IV族元素合金半导体材料的方法和包括这种材料的装置
公开(公告)号：US6037614A
公开(公告)日：2000-03-14
申请号：US36182
申请日：1998-03-06
申请人： Gang He , Harry A. Atwater
发明人： Gang He , Harry A. Atwater
IPC分类号： H01L31/028 , H01L31/18 , H01L31/0328 , H01L31/0336 , H01L31/072 , H01L31/109
CPC分类号： H01L31/1812 , H01L31/028 , Y02E10/547
摘要： Sn.sub.x Ge.sub.1-x alloys that are substantially free of compositional inhomogeneities and Sn segregation, and have a measurable direct band gap. Methods for making the Sn.sub.x Ge.sub.1-x alloys are also disclosed.
摘要翻译： SnxGe1-x合金，其基本上没有组成不均匀性和Sn分离，并且具有可测量的直接带隙。还公开了制备SnxGe1-x合金的方法。

106. 发明授权

US5933106A Encoder signal analysis system for high-resolution position measurement 失效
标题翻译：用于高分辨率位置测量的编码器信号分析系统
公开(公告)号：US5933106A
公开(公告)日：1999-08-03
申请号：US890741
申请日：1997-07-11
申请人： Gang He , Harry A. Atwater
发明人： Gang He , Harry A. Atwater
IPC分类号： H03M5/22
CPC分类号： H03M5/22
摘要： A signal analysis system for processing quadrature analog waveforms from an encoder. High-resolution position measurements for external measurement devices are obtained. A hardware component receives the quadrature analog signals from the encoder and processes these signals to generate low and high-resolution waveforms. These waveforms are then further processed and sent as first and second data streams to a computational component of the signal analysis system. The absolute phase angle (.THETA.) of the encoder's analog signal is determined by processing the data streams with the computational component. .THETA. is compared to a series of calibration factors to determine the position of the translating component of the external measurement device.
摘要翻译：用于处理来自编码器的正交模拟波形的信号分析系统。获得外部测量装置的高分辨率位置测量。硬件组件从编码器接收正交模拟信号，并处理这些信号以产生低分辨率和高分辨率波形。然后将这些波形进一步处理并作为第一和第二数据流发送到信号分析系统的计算部件。编码器模拟信号的绝对相位角（THETA）是通过用计算分量处理数据流来确定的。将THETA与一系列校准因子进行比较，以确定外部测量装置的平移部件的位置。

107. 发明授权

US09112604B2 Reference-based in-band OSNR measurement on polarization-multiplexed signals 有权
标题翻译：偏振复用信号的基于参考的带内OSNR测量
公开(公告)号：US09112604B2
公开(公告)日：2015-08-18
申请号：US13501708
申请日：2011-02-14
申请人： Daniel Gariepy , Gang He
发明人： Daniel Gariepy , Gang He
IPC分类号： H04B17/00 , H04B10/079
CPC分类号： H04B10/07953
摘要： There is provided a method for determining an in-band noise parameter, such as the Optical Signal-to-Noise Ratio (OSNR), on an optical signal-under-test (SUT) propagating along an optical communication link and comprising a data-carrying signal contribution of any arbitrary degree of polarization and a noise contribution. A spectral shape trace of data-carrying signal contribution in the SUT is estimated using a reference optical spectrum trace of a reference signal which comprises a data-carrying signal contribution that is spectrally representative of the data-carrying signal contribution of the SUT and a noise contribution which is at least approximately known. The data-carrying signal contribution is mathematically discriminated from said noise contribution in the SUT using the spectral shape trace and the test optical spectrum trace. The in-band noise parameter is then determined at least from the mathematically discriminated noise contribution.
摘要翻译：提供了一种用于在沿着光通信链路传播的光信号在测试（SUT）上确定带内噪声参数（诸如光信噪比（OSNR））的方法，并且包括数据 - 携带任何任意极化度和噪声贡献的信号贡献。使用参考信号的参考光谱轨迹来估计SUT中的数据携带信号贡献的谱形轨迹，该参考信号包括频谱上表示SUT的数据携带信号贡献的数据携带信号贡献，以及噪声贡献至少大致已知。使用光谱形状轨迹和测试光谱轨迹，数据载入信号贡献在数学上与SUT中的噪声贡献区分开。至少从数学识别的噪声贡献中确定带内噪声参数。

108. 发明授权

US09070764B2 Epitaxial lift off stack having a pre-curved handle and methods thereof 有权
标题翻译：具有预弯曲手柄的外延提升堆叠及其方法
公开(公告)号：US09070764B2
公开(公告)日：2015-06-30
申请号：US12475406
申请日：2009-05-29
申请人： Melissa Archer , Harry Atwater , Thomas Gmitter , Gang He , Andreas Hegedus , Gregg Higashi , Stewart Sonnenfeldt
发明人： Melissa Archer , Harry Atwater , Thomas Gmitter , Gang He , Andreas Hegedus , Gregg Higashi , Stewart Sonnenfeldt
IPC分类号： H01L21/78 , H01L21/683
CPC分类号： H01L21/7813 , H01L21/02543 , H01L21/02546 , H01L21/30612 , H01L21/6835 , H01L21/6836 , H01L21/7806 , H01L2221/6835 , H01L2221/68381
摘要： Embodiments of the invention generally relate to epitaxial lift off (ELO) thin films and devices and methods used to form such films and devices. In one embodiment, a method for forming an ELO thin film is provided which includes depositing an epitaxial material over a sacrificial layer on a substrate, adhering a flattened, pre-curved support handle onto the epitaxial material, and removing the sacrificial layer during an etching process. The etching process includes bending the pre-curved support handle to have substantial curvature while peeling the epitaxial material from the substrate and forming an etch crevice therebetween. Compression is maintained within the epitaxial material during the etching process. The flattened, pre-curved support handle may be formed by flattening a pre-curved support material.
摘要翻译：本发明的实施例一般涉及外延剥离（ELO）薄膜，以及用于形成这种膜和装置的装置和方法。在一个实施例中，提供了一种用于形成ELO薄膜的方法，其包括在衬底上的牺牲层上沉积外延材料，将平坦化的预弯曲支撑手柄粘附到外延材料上，以及在蚀刻期间去除牺牲层处理。蚀刻工艺包括弯曲预弯曲的支撑手柄以具有相当大的曲率，同时从衬底剥离外延材料并在其间形成蚀刻缝隙。在蚀刻过程中压缩保持在外延材料内。扁平的预弯曲的支撑手柄可以通过使预弯曲的支撑材料变平而形成。

109. 发明授权

US09029687B2 Photovoltaic device with back side contacts 有权
标题翻译：具有背面接触的光伏器件
公开(公告)号：US09029687B2
公开(公告)日：2015-05-12
申请号：US12605151
申请日：2009-10-23
申请人： Isik C. Kizilyalli , Melissa Archer , Harry Atwater , Thomas J. Gmitter , Gang He , Andreas Hegedus , Gregg Higashi
发明人： Isik C. Kizilyalli , Melissa Archer , Harry Atwater , Thomas J. Gmitter , Gang He , Andreas Hegedus , Gregg Higashi
IPC分类号： H01L31/00 , H01L31/0224 , H01L31/0304 , H01L31/0352 , H01L31/0735 , H01L31/18
CPC分类号： H01L31/022458 , H01L31/02167 , H01L31/022425 , H01L31/022441 , H01L31/0304 , H01L31/03046 , H01L31/035281 , H01L31/0735 , H01L31/184 , H01L31/1844 , H01L31/1852 , H01L31/1892 , Y02E10/544 , Y02P70/521
摘要： Methods and apparatus for converting electromagnetic radiation, such as solar energy, into electric energy with increased efficiency when compared to conventional solar cells are provided. A photovoltaic (PV) device generally includes a window layer; an absorber layer disposed below the window layer such that electrons are generated when photons travel through the window layer and are absorbed by the absorber layer; and a plurality of contacts for external connection coupled to the absorber layer, such that all of the contacts for external connection are disposed below the absorber layer and do not block any of the photons from reaching the absorber layer through the window layer. Locating all the contacts on the back side of the PV device avoids solar shadows caused by front side contacts, typically found in conventional solar cells. Therefore, PV devices described herein with back side contacts may allow for increased efficiency when compared to conventional solar cells.
摘要翻译：提供了与常规太阳能电池相比，用于将电磁辐射如太阳能转换成电能的方法和装置，其效率提高。光伏（PV）装置通常包括窗口层; 设置在窗口层下方的吸收层，使得当光子穿过窗口层并被吸收层吸收时，产生电子; 以及多个用于连接到吸收层的外部连接的触点，使得用于外部连接的所有触点都设置在吸收层下方，并且不阻挡任何光子通过窗口层到达吸收层。定位PV设备背面的所有触点避免了由常规太阳能电池中常见的前端触点引起的太阳阴影。因此，与传统的太阳能电池相比，具有背面接触的本文描述的PV器件可以提高效率。

110. 发明授权

US08895845B2 Photovoltaic device 有权
标题翻译：光伏装置
公开(公告)号：US08895845B2
公开(公告)日：2014-11-25
申请号：US12940861
申请日：2010-11-05
申请人： Isik C. Kizilyalli , Melissa Archer , Harry Atwater , Thomas J. Gmitter , Gang He , Andreas Hegedus , Gregg Higashi
发明人： Isik C. Kizilyalli , Melissa Archer , Harry Atwater , Thomas J. Gmitter , Gang He , Andreas Hegedus , Gregg Higashi
IPC分类号： H01L31/00 , H01L31/0304 , H01L31/0236 , H01L31/0735
CPC分类号： H01L31/0304 , H01L31/022441 , H01L31/0236 , H01L31/02363 , H01L31/03046 , H01L31/065 , H01L31/0682 , H01L31/0693 , H01L31/0735 , Y02E10/50 , Y02E10/52 , Y02E10/544
摘要： Methods and apparatus are provided for converting electromagnetic radiation, such as solar energy, into electric energy with increased efficiency when compared to conventional solar cells. A photovoltaic (PV) unit, according to embodiments of the invention, may have a very thin absorber layer produced by epitaxial lift-off (ELO), all electrical contacts positioned on the back side of the PV device to avoid shadowing, and/or front side and back side light trapping employing a diffuser and a reflector to increase absorption of the photons impinging on the front side of the PV unit. Several PV units may be combined into PV banks, and an array of PV banks may be connected to form a PV module with thin strips of metal or conductive polymer applied at low temperature. Such innovations may allow for greater efficiency and flexibility in PV devices when compared to conventional solar cells.
摘要翻译：提供了与常规太阳能电池相比，用于将诸如太阳能的电磁辐射转换成电能的方法和装置，其效率提高。根据本发明的实施例的光伏（PV）单元可以具有通过外延剥离（ELO）制造的非常薄的吸收层，所有电触点位于PV装置的背面以避免阴影，和/或使用扩散器和反射器的前侧和后侧光捕获以增加入射到PV单元的前侧的光子的吸收。可以将多个PV单元组合成PV组，并且可以将PV组阵列连接以形成具有在低温下施加的薄金属或导电聚合物的PV模块。与常规太阳能电池相比，这样的创新可以允许PV装置的更高的效率和灵活性。

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