公开(公告)号：US08896077B2

公开(公告)日：2014-11-25

申请号：US12909064

申请日：2010-10-21

Applicant: Yi Cui ,  Jia Zhu ,  Ching-Mei Hsu ,  Shanhui Fan ,  Zongfu Yu

Inventor： Yi Cui ,  Jia Zhu ,  Ching-Mei Hsu ,  Shanhui Fan ,  Zongfu Yu

IPC: H01L31/0232 ,  H01L21/04 ,  H01L31/0236 ,  H01L31/0352

CPC classification number: H01L31/02363 ,  H01L31/02366 ,  H01L31/03529 ,  Y02E10/50

Abstract: An optoelectronic device comprising an optically active layer that includes a plurality of domes is presented. The plurality of domes is arrayed in two dimensions having a periodicity in each dimension that is less than or comparable with the shortest wavelength in a spectral range of interest. By virtue of the plurality of domes, the optoelectronic device achieves high performance. A solar cell having high energy-conversion efficiency, improved absorption over the spectral range of interest, and an improved acceptance angle is presented as an exemplary device.

Abstract translation: 呈现包括多个圆顶的光学活性层的光电器件。 多个圆顶被排列成二维，每个尺寸的周期小于或等于感兴趣的光谱范围中的最短波长。 凭借多个圆顶，光电器件实现了高性能。 提供了具有高能量转换效率，在感兴趣的光谱范围上改进的吸收以及改进的接受角度的太阳能电池作为示例性装置。

公开(公告)号：US08437005B2

公开(公告)日：2013-05-07

申请号：US13493844

申请日：2012-06-11

Applicant: Michel J.F. Digonnet ,  Shanhui Fan ,  Seth Lloyd

Inventor： Michel J.F. Digonnet ,  Shanhui Fan ,  Seth Lloyd

IPC: G01C19/72

CPC classification number: G01C19/721

Abstract: An optical sensor, a method of configuring an optical sensor, and a method of using an optical sensor are provided. The optical sensor includes an optical waveguide having a length and a laser source optically coupled to the waveguide. The laser source has a coherence length. Light from the source is transmitted to the waveguide as a first signal propagating along the waveguide in a first direction and a second signal propagating along the waveguide in a second direction opposite to the first direction. The optical paths of the first signal and the second signal are substantially reciprocal with one another and the first signal and the second signal are combined together after propagating through the waveguide to generate a third signal. The coherence length is greater than 1 meter or is in a range between 200 microns and 10 centimeters.

Abstract translation: 提供光学传感器，配置光学传感器的方法以及使用光学传感器的方法。 光学传感器包括具有光学耦合到波导的长度的光波导和激光源。 激光源具有相干长度。 源自光源的光作为沿着波导沿第一方向传播的第一信号被传输到波导，第二信号沿着与第一方向相反的第二方向沿着波导传播。 第一信号和第二信号的光路基本上彼此相互倒数，并且在通过波导传播之后将第一信号和第二信号组合在一起以产生第三信号。 相干长度大于1米或处于200微米至10厘米之间的范围内。

公开(公告)号：US20110134432A1

公开(公告)日：2011-06-09

申请号：US13026049

申请日：2011-02-11

Applicant: Matthew A. Terrel ,  Michel J.F. Digonnet ,  Shanhui Fan

Inventor： Matthew A. Terrel ,  Michel J.F. Digonnet ,  Shanhui Fan

IPC: G01C19/72 ,  G01B9/02 ,  B23P11/00

CPC classification number: G01D5/35303 ,  G01C19/721 ,  Y10T29/49826

Abstract: An optical sensor includes at least one optical coupler and an optical waveguide in optical communication with the at least one optical coupler. The optical waveguide is configured to receive a first optical signal from the at least one optical coupler. The first optical signal has a group velocity and a phase velocity while propagating through at least a portion of the optical waveguide, the group velocity less than the phase velocity. An interference between the first optical signal and a second optical signal is affected by relative movement between the optical waveguide and the at least one optical coupler.

Abstract translation: 光学传感器包括至少一个光耦合器和与所述至少一个光耦合器光学通信的光波导。 光波导被配置为从至少一个光耦合器接收第一光信号。 第一光信号在传播通过光波导的至少一部分时具有组速度和相速度，组速度小于相速度。 第一光信号和第二光信号之间的干涉受到光波导与至少一个光耦合器之间的相对移动的影响。

公开(公告)号：US20110121431A1

公开(公告)日：2011-05-26

申请号：US12948025

申请日：2010-11-17

Applicant: Yi Cui ,  Jia Zhu ,  Ching-Mei Hsu ,  Stephen T. Connor ,  Zongfu Yu ,  Shanhui Fan ,  George Burkhard

Inventor： Yi Cui ,  Jia Zhu ,  Ching-Mei Hsu ,  Stephen T. Connor ,  Zongfu Yu ,  Shanhui Fan ,  George Burkhard

IPC: H01L29/06 ,  H01L21/3065

CPC classification number: H01L29/0665 ,  B82Y10/00 ,  H01L21/3086 ,  H01L31/035227 ,  H01L31/03921 ,  H01L31/202 ,  Y02E10/50 ,  Y02P70/521

Abstract: A method for forming a substrate comprising nanometer-scale pillars or cones that project from the surface of the substrate is disclosed. The method enables control over physical characteristics of the projections including diameter, sidewall angle, and tip shape. The method further enables control over the arrangement of the projections including characteristics such as center-to-center spacing and separation distance.

Abstract translation: 公开了一种用于形成包括从衬底的表面突出的纳米级柱或锥体的衬底的方法。 该方法能够控制突起的物理特性，包括直径，侧壁角和尖端形状。 该方法还能够控制突起的布置，包括中心间距和间隔距离等特征。

公开(公告)号：US07620283B2

公开(公告)日：2009-11-17

申请号：US12194490

申请日：2008-08-19

Applicant: Matthew A. Terrel ,  Michel J. F. Digonnet ,  Shanhui Fan

Inventor： Matthew A. Terrel ,  Michel J. F. Digonnet ,  Shanhui Fan

IPC: G02B6/00 ,  G02B6/032

CPC classification number: G02F1/0136 ,  G02B6/02304 ,  G02B6/02328 ,  G02F1/0134 ,  G02F2202/32

Abstract: An optical device includes a hollow-core photonic-bandgap fiber, wherein at least a portion of the hollow-core photonic-bandgap fiber has a longitudinal axis and is twisted about the longitudinal axis.

Abstract translation: 光学器件包括中空光子带隙光纤，其中至少一部分中空光子带隙光纤具有纵向轴线并围绕纵向轴线扭曲。

公开(公告)号：US20090175584A1

公开(公告)日：2009-07-09

申请号：US12356510

申请日：2009-01-20

Applicant: Hyang Kyun Kim ,  Shanhui Fan ,  Gordon S. Kino ,  Jonghwa Shin ,  Michel J.F. Digonnet ,  Vinayak Dangui

Inventor： Hyang Kyun Kim ,  Shanhui Fan ,  Gordon S. Kino ,  Jonghwa Shin ,  Michel J.F. Digonnet ,  Vinayak Dangui

IPC: G02B6/032

CPC classification number: G02B6/02328 ,  G02B6/02338 ,  G02B6/02347

Abstract: An optical fiber includes a cladding with a material having a first refractive index and a pattern of regions formed therein. Each of the regions has a second refractive index lower than the first refractive index. The optical fiber further includes a core region and a core ring having an inner perimeter, an outer perimeter, and a thickness between the inner perimeter and the outer perimeter. The thickness is sized to reduce the number of ring surface modes supported by the core ring.

Abstract translation: 光纤包括具有第一折射率的材料和其中形成的区域的图案的包层。 每个区域具有低于第一折射率的第二折射率。 光纤还包括芯区域和芯环，其具有内周边，外周边和内周边与外周边之间的厚度。 厚度的大小可以减小由芯环支撑的环表面模式的数量。

公开(公告)号：US20080069561A1

公开(公告)日：2008-03-20

申请号：US11940199

申请日：2007-11-14

Applicant: Joseph Kahn ,  Mark Horowitz ,  Olav Solgaard ,  Shanhui Fan

Inventor： Joseph Kahn ,  Mark Horowitz ,  Olav Solgaard ,  Shanhui Fan

IPC: H04K3/00

CPC classification number: G02B6/4206 ,  G02B6/2861

Abstract: Optical signals are passed in an optical medium using an approach that facilitates the mitigation of interference. According to an example embodiment, a filtering-type approach is used with an optical signal conveyed in an optical fiber, such as a multimode fiber (MMF) or a multimode waveguide. Adaptive spatial domain signal processing, responsive to a feedback signal indicative of data conveyed in the multimode waveguide, is used to mitigate interference in optical signals conveyed in the multimode waveguide.

Abstract translation: 光信号通过使用有助于减轻干扰的方法在光学介质中传播。 根据示例实施例，滤波型方法与诸如多模光纤（MMF）或多模波导之类的光纤中传送的光信号一起使用。 响应于指示在多模波导中传送的数据的反馈信号的自适应空间域信号处理被用于减轻在多模波导中传送的光信号中的干扰。

公开(公告)号：US20060115212A1

公开(公告)日：2006-06-01

申请号：US11001492

申请日：2004-11-30

Applicant: Mehmet Yanik ,  Shanhui Fan

Inventor： Mehmet Yanik ,  Shanhui Fan

IPC: G02B6/26

CPC classification number: B82Y20/00 ,  G02B6/1225

Abstract: Light pulses can be stopped and stored coherently, with an all-optical process that involves an adiabatic and reversible pulse bandwidth compression occurring entirely in the optical domain. Such a process overcomes the fundamental bandwidth-delay constraint in optics, and can generate arbitrarily small group velocities for light pulses with a given bandwidth, without the use of any coherent or resonant light-matter interactions. This is accomplished only by small refractive index modulations performed at moderate speeds and has applications ranging from quantum communications and computing to coherent all-optical memory devices. A complete time reversal and/or temporal/spectral compression and expansion operation on any electromagnetic field is accomplished using only small refractive index modulations and linear optical elements. This process does not require any nonlinear multi-photon processes such as four-wave mixing and thus can be implemented using on-chip tunable microcavity complexes in photonic crystals. The tuning process requires only small refractive index modulations, and moderate modulation speeds without requiring any high-speed electronic sampling.

Abstract translation: 光脉冲可以被停止并相干地存储，其全光学过程涉及完全在光学域中发生的绝热和可逆的脉冲带宽压缩。 这种过程克服了光学中的基本带宽延迟约束，并且可以为具有给定带宽的光脉冲产生任意小的组速度，而不使用任何相干或共振的光物质相互作用。 这仅通过在中等速度下执行的小折射率调制来实现，并且具有从量子通信和计算到相干全光存储器件的应用。 在任何电磁场上的完全时间反转和/或时间/频谱压缩和扩展操作仅使用小的折射率调制和线性光学元件来实现。 该过程不需要诸如四波混频的任何非线性多光子过程，因此可以使用光子晶体中的片上可调谐微腔复合体来实现。 调谐过程只需要较小的折射率调制和适度的调制速度，而不需要任何高速电子采样。

公开(公告)号：US06917431B2

公开(公告)日：2005-07-12

申请号：US10146430

申请日：2002-05-15

Applicant: Marin Soljacic ,  Shanhui Fan ,  Mihai Ibanescu ,  Steven G. Johnson ,  John D. Joannopoulos

Inventor： Marin Soljacic ,  Shanhui Fan ,  Mihai Ibanescu ,  Steven G. Johnson ,  John D. Joannopoulos

IPC: G02B6/122 ,  G02F1/225 ,  H01S5/026 ,  H01S5/10 ,  G01B9/02

CPC classification number: G02B6/1225 ,  B82Y20/00 ,  G02F1/225 ,  G02F2202/32 ,  H01S5/0265 ,  H01S5/105

Abstract: A photonic crystal optical switch having a periodic dielectric structure including at least one input waveguide. First and second waveguide arms branch from the input waveguide in which the relative optical path lengths of electromagnetic radiation within the arms are controlled by stimuli. At least one output waveguide that combines the electromagnetic radiation propagating within the first and second waveguide arms.

Abstract translation: 一种具有包括至少一个输入波导的周期性电介质结构的光子晶体光开关。 第一和第二波导臂从输入波导分支，其中臂内的电磁辐射的相对光程长度受到刺激的控制。 至少一个输出波导，其组合在第一和第二波导臂内传播的电磁辐射。

公开(公告)号：US20050118420A1

公开(公告)日：2005-06-02

申请号：US10938755

申请日：2004-09-10

Applicant: Hyang Kim ,  Shanhui Fan ,  Gordon Kino ,  Jonghwa Shin ,  Michel Digonnet

Inventor： Hyang Kim ,  Shanhui Fan ,  Gordon Kino ,  Jonghwa Shin ,  Michel Digonnet

IPC: A61K31/135 ,  A61K31/137 ,  A61K31/4168 ,  A61K31/498 ,  A61K31/506 ,  A61K31/517 ,  A61K45/06 ,  D02G3/00

CPC classification number: G02B6/02328 ,  A61K31/135 ,  A61K31/137 ,  A61K31/4168 ,  A61K31/498 ,  A61K31/506 ,  A61K31/517 ,  A61K45/06 ,  G02B6/02338 ,  Y10T428/2913 ,  Y10T428/2929 ,  A61K2300/00

Abstract: Coupling of core modes to surface modes in an air-core photonic-bandgap fiber (PBF) can cause large propagation losses. Computer simulations analyze the relationship between the geometry and the presence of surface modes in PBFs having a triangular hole pattern and identify ranges of core characteristic dimensions (e.g., radii) for which the fiber supports no surface modes (i.e., only core modes are present) over the entire wavelength range of the bandgap. In particular, for a hole spacing Λ and a hole radius ρ=0.47Λ, the core supports a single mode and supports no surface modes for core radii between about 0.7Λ and about 1.05Λ, which suggests that such fibers should exhibit a very low propagation loss. The existence of surface modes can be predicted simply and expediently by studying either the bulk modes alone or the geometry of the fiber without requiring a full analysis of the defect modes.

Abstract translation: 核心模式与空芯光子带隙光纤（PBF）中的表面模式的耦合可能导致较大的传播损耗。 计算机模拟分析了具有三角孔图案的PBF中的几何形状和表面模式的存在之间的关系，并且识别纤维不支持表面模式（即，仅存在核心模式）的核心特征尺寸（例如，半径）的范围， 在带隙的整个波长范围内。 特别地，对于孔间距λ和孔半径rho = 0.47Lambda，芯支撑单模并且不支持在约0.7λ和约1.05λ之间的核心半径的表面模式，这表明这种光纤应呈现非常低的 传播损失。 表面模式的存在可以通过单独研究单独的体模式或光纤的几何形状而不需要对缺陷模式进行全面分析来简单和方便地预测。