公开(公告)号：US20170248831A1

公开(公告)日：2017-08-31

申请号：US15443911

申请日：2017-02-27

申请人： Alejandro Rodriguez ,  Zin Lin ,  Steven G. Johnson ,  Marko Loncar ,  Xiangdong Liang

发明人： Alejandro Rodriguez ,  Zin Lin ,  Steven G. Johnson ,  Marko Loncar ,  Xiangdong Liang

IPC分类号： G02F1/35 ,  G02F1/37 ,  G02F1/355

CPC分类号： G02F1/3501 ,  G02F1/353 ,  G02F1/3551 ,  G02F1/3556 ,  G02F1/37 ,  G02F2001/3503 ,  G02F2001/354 ,  G02F2001/3548

摘要： A dual frequency optical resonator configured for optical coupling to light having a first frequency ω1. The dual frequency optical resonator includes a plurality of alternating layer pairs stacked in a post configuration, each layer pair having a first layer formed of a first material and a second layer formed of a second material, the first material and second materials being different materials. The first layer has a first thickness and the second layer has a second thickness, the thicknesses of the first and second layer being selected to create optical resonances at the first frequency ω1 and a second frequency ω2 which is a harmonic of ω1 and the thicknesses of the first and second layer also being selected to enhance nonlinear coupling between the first frequency ω1 and a second frequency ω2.

公开(公告)号：US08452611B1

公开(公告)日：2013-05-28

申请号：US12699789

申请日：2010-02-03

申请人： Steven G. Johnson ,  Christopher G. Busch

发明人： Steven G. Johnson ,  Christopher G. Busch

IPC分类号： G06Q10/00 ,  G06Q50/00

CPC分类号： G06Q40/025 ,  G06F19/00 ,  G06Q10/10 ,  G06Q50/22 ,  G06Q50/24

摘要： According to one example embodiment, there is provided a method and an apparatus to evaluate the credit of a healthcare patient. The example embodiment provides methods and computer systems programmed to use multiple variables that are known about a patient prior to a service being rendered to segment the patient population into finer grained groupings. These finer grained groupings allow financial factors, such as a credit score, to be a more accurate predictor. Also, according to another example embodiment, the model is not a generic model for all patients, but the variables and their parameters are specific to a particular healthcare organization's or facility's patient population. This creates a custom model that further enhances its predictiveness.

公开(公告)号：US07177513B2

公开(公告)日：2007-02-13

申请号：US10412571

申请日：2003-04-11

申请人： Michelle L. Povinelli ,  Steven G. Johnson ,  John D. Joannopoulos

发明人： Michelle L. Povinelli ,  Steven G. Johnson ,  John D. Joannopoulos

IPC分类号： G02B6/10

CPC分类号： B82Y20/00 ,  G02B6/1225 ,  H01Q15/0086

摘要： A periodic structure is disclosed that includes an array of point defects within the periodic structure. The array includes point defects in a least two dimensions of the periodic structure. Each point defect permits electromagnetic fields of a first wavelength that is otherwise within a band gap range of the periodic structure to exist in each of the point defects.

摘要翻译： 公开了包括周期性结构内的点缺陷阵列的周期性结构。 该阵列包括周期性结构的至少二维中的点缺陷。 每个点缺陷允许否则在周期性结构的带隙范围内的第一波长的电磁场存在于每个点缺陷中。

公开(公告)号：US07072547B2

公开(公告)日：2006-07-04

申请号：US10464153

申请日：2003-06-18

申请人： Solomon Assefa ,  Peter Bienstman ,  Gale S. Petrich ,  Alexei A. Erchak ,  Steven G. Johnson ,  Leslie A. Kolodziejski ,  John D. Joannopoulos

发明人： Solomon Assefa ,  Peter Bienstman ,  Gale S. Petrich ,  Alexei A. Erchak ,  Steven G. Johnson ,  Leslie A. Kolodziejski ,  John D. Joannopoulos

IPC分类号： G02B6/26

CPC分类号： B82Y20/00 ,  G02B6/12004 ,  G02B6/1225 ,  G02B6/1228

摘要： A coupling element includes a first stage having a dielectric waveguide that is transitioned to a waveguide having a sequence of resonators with a fixed period. A second stage transitions the waveguide to a photonic crystal waveguide by gradually bringing closer at an angle the cladding bulk of the photonic crystal to the waveguide.

摘要翻译： 耦合元件包括具有介质波导的第一级，该介质波导转变到具有固定周期的具有一系列谐振器的波导。 第二阶段通过逐渐使光子晶体的包层体向一个角度靠近波导而将波导转移到光子晶体波导。

公开(公告)号：US06879386B2

公开(公告)日：2005-04-12

申请号：US10068998

申请日：2002-02-07

申请人： Max Shurgalin ,  Yoel Fink ,  Steven G. Johnson ,  Mihai Ibanescu

发明人： Max Shurgalin ,  Yoel Fink ,  Steven G. Johnson ,  Mihai Ibanescu

IPC分类号： G01M11/00 ,  G02B6/02 ,  G02B6/44 ,  G01N21/00

CPC分类号： G02B6/02304 ,  G01M11/31 ,  G01M11/3127 ,  G02B6/4479

摘要： Techniques for monitoring the quality (e.g., optical and mechanical properties) in optical waveguides (e.g., photonic crystal fibers) are disclosed. Additionally, techniques for detecting and localizing defects in the waveguides are also described. Pulses of light are launched into one end of an optical waveguide. The amount of light scattered out of the same end of the waveguide (i.e., a backscattered or reflected signal) is monitored at certain wavelengths specific to the spectral characteristics of the waveguide. Transmission characteristics and defect localization can be determined from the backscattered signal.

摘要翻译： 公开了用于监测光波导（例如，光子晶体光纤）中的质量（例如光学和机械性能）的技术。 此外，还描述了用于检测和定位波导中的缺陷的技术。 光的脉冲发射到光波导的一端。 在波导的光谱特性特定的特定波长处监测从波导的同一端散射的光的量（即，背散射或反射信号）。 可以从后向散射信号确定传输特性和缺陷定位。

公开(公告)号：US06198860B1

公开(公告)日：2001-03-06

申请号：US09158455

申请日：1998-09-22

申请人： Steven G. Johnson ,  Shanhui Fan ,  Pierre R. Villeneuve ,  Christina Manolatou ,  Hermann A. Haus ,  John D. Joannopoulos

发明人： Steven G. Johnson ,  Shanhui Fan ,  Pierre R. Villeneuve ,  Christina Manolatou ,  Hermann A. Haus ,  John D. Joannopoulos

IPC分类号： G02B626

CPC分类号： B82Y20/00 ,  G02B6/1225 ,  G02B2006/1215

摘要： An optical waveguide structure including a first waveguide, a second waveguide that intersects with the first waveguide, and a photonic crystal resonator system at the intersection of the first and second waveguides. In accordance with another embodiment there is provided an optical waveguide crossing structure including a first waveguide that propagates signals in a first direction, a second waveguide that intersects with the first waveguide and propagates signals in a second direction, and a photonic crystal crossing region at the intersection of the first and second waveguides that prevents crosstalk between the signals of the first and second waveguides. In accordance with another embodiment of the invention there is provided an optical waveguide structure including a first waveguide, a second waveguide, and a resonator system at the intersection of the first and second waveguides, the intersection possessing a first mirror plane that is parallel to the first waveguide, the resonator system supporting a first resonant mode that includes different symmetry with guided modes in the first waveguide with respect to the first mirror plane, the resonator system substantially reduces crosstalk from the second waveguide to said first waveguide.

摘要翻译： 包括第一波导，与第一波导相交的第二波导的光波导结构和在第一和第二波导的交叉处的光子晶体谐振器系统。 根据另一实施例，提供了一种光波导交叉结构，包括：沿第一方向传播信号的第一波导，与第一波导相交并沿第二方向传播信号的第二波导，以及在第二波导处的光子晶体交叉区 第一和第二波导的交点，其防止第一和第二波导的信号之间的串扰。 根据本发明的另一实施例，提供了一种光波导结构，其包括第一波导，第二波导和谐振器系统，在第一和第二波导的交叉处，交叉点具有平行于第一波导的第一反射镜平面 第一波导，谐振器系统支持第一谐振模式，其包括与第一波导相对于第一镜面平面的引导模式不同的对称性，所述谐振器系统基本上减少了从第二波导到所述第一波导的串扰。