公开(公告)号：US10954873B2

公开(公告)日：2021-03-23

申请号：US16290365

申请日：2019-03-01

Applicant: Amit Shrestha ,  Bei Jin ,  Jingjing Li ,  Fadi Estefanous ,  Lurun Zhong ,  Singalandapuram Mahedevan Boopathi ,  Mitchell Ober

Inventor： Amit Shrestha ,  Bei Jin ,  Jingjing Li ,  Fadi Estefanous ,  Lurun Zhong ,  Singalandapuram Mahedevan Boopathi ,  Mitchell Ober

IPC: F02D41/14

Abstract: An emissions control system for a vehicle having an exhaust system with an exhaust gas conduit and a catalytic converter configured to receive exhaust gas from an engine is provided. In one example implementation, the system includes an engine controller configured to control the engine to adjust an air to fuel ratio (lambda) thereof. The engine controller is configured to operate the engine with at least one of the following lambda control strategies (i) a first control strategy comprising operating at a first reference lambda modified by a first percent kick, and a first rich lambda lag time shorter than a first lean lambda lag time, and (ii) a second control strategy comprising operating at a second reference lambda modified by a second percent kick, and a second rich lag time longer than a second lean lambda lag time, to thereby simultaneously meet predetermined NOx and CO emissions targets.

公开(公告)号：US09354362B2

公开(公告)日：2016-05-31

申请号：US13384725

申请日：2009-09-23

Applicant: Jingjing Li ,  David A. Fattal ,  Raymond G. Beausoleil ,  Marco Fiorentino

Inventor： Jingjing Li ,  David A. Fattal ,  Raymond G. Beausoleil ,  Marco Fiorentino

IPC: G02B5/18 ,  G02B27/44

CPC classification number: G02B5/1809

Abstract: Embodiments of the present invention relate to planar optical devices composed of one or more sub-wavelength diffraction grating layers. In one embodiment, an optical device includes a first substantially planar reflective structure (104,1904), a second substantially planar reflective structure (106,1906), and a substantially planar sub-wavelength grating layer (102,1902) disposed between the first reflective structure and the second reflective structure. The grating layer is configured with lines (208-211,214-217) having line widths, line thicknesses, and line period spacing selected to control phase changes in different portions of a beam of light transmitted through the optical device.

Abstract translation: 本发明的实施例涉及由一个或多个亚波长衍射光栅层组成的平面光学器件。 在一个实施例中，光学装置包括第一基本上平面的反射结构（104,1904），第二基本上平面的反射结构（106,1906），以及基本平坦的子波长光栅层（102,1902） 反射结构和第二反射结构。 光栅层被配置成线（208-211,214-217），其具有线宽度，线厚度和线周期间隔，其被选择以控制透射通过光学器件的光束的不同部分中的相位变化。

公开(公告)号：US20130272337A1

公开(公告)日：2013-10-17

申请号：US13990009

申请日：2010-12-20

Applicant: Michael Renne Ty Tan ,  David A. Fattal ,  Jingjing Li ,  Raymond G. Beausoleil

Inventor： Michael Renne Ty Tan ,  David A. Fattal ,  Jingjing Li ,  Raymond G. Beausoleil

IPC: H01S5/183

CPC classification number: H01S5/18361 ,  H01S5/021 ,  H01S5/02284 ,  H01S5/18341 ,  H01S5/18366 ,  H01S5/1838 ,  H01S5/18386 ,  H01S5/423 ,  H01S2301/176

Abstract: A vertical cavity surface emitting laser (VCSEL) system and method of fabrication are included. The VCSEL system includes a first portion comprising a first mirror and a gain region to amplify an optical signal in response to a data signal, the first portion being fabricated on a first wafer. The system also includes a second portion comprising a second mirror that is partially-reflective to couple the optical signal to an optical fiber. The second portion can be fabricated on a second wafer. The system further includes a supporting structure to couple the first and second portions such that the first and second mirrors are arranged as a laser cavity having a predetermined length to resonate the optical signal.

Abstract translation: 包括垂直腔面发射激光（VCSEL）系统和制造方法。 VCSEL系统包括第一部分，第一部分包括第一反射镜和增益区域，以响应于数据信号放大光信号，第一部分被制造在第一晶片上。 该系统还包括第二部分，其包括部分反射以将光信号耦合到光纤的第二反射镜。 第二部分可以在第二晶片上制造。 该系统还包括一个支撑结构，用于联接第一和第二部分，使得第一和第二反射镜被布置为具有预定长度的激光腔，以谐振光信号。

公开(公告)号：US08390804B2

公开(公告)日：2013-03-05

申请号：US12697136

申请日：2010-01-29

Applicant: Michael J. Stuke ,  Alexandre M. Bratkovski ,  Min Hu ,  Huei Pei Kuo ,  Jingjing Li ,  Zhiyong Li ,  Fung Suong Ou ,  Shih-Yuan (Sy) Wang ,  Wei Wu

Inventor： Michael J. Stuke ,  Alexandre M. Bratkovski ,  Min Hu ,  Huei Pei Kuo ,  Jingjing Li ,  Zhiyong Li ,  Fung Suong Ou ,  Shih-Yuan (Sy) Wang ,  Wei Wu

IPC: G01J3/44

CPC classification number: G01J3/44 ,  G01N21/658

Abstract: A surface enhanced Raman spectroscopy (SERS) apparatus, system and method employ a plurality of nanorods configured to vibrate. The apparatus includes the nanorods having tips at free ends opposite an end attached to a substrate. The tips are configured to adsorb an analyte and to vibrate at a vibration frequency. The apparatus further includes a vibration source configured to vibrate the free ends of the nanorods at the vibration frequency in a back-and-forth motion. Vibration of the nanorods is configured to facilitate detection of a Raman scattering signal emitted by the analyte adsorbed on the nanorod tips. The system further includes a synchronous detector configured to receive the Raman signal and to be gated cooperatively with the vibration of the nanorods. The method includes inducing a vibration of the nanorods, illuminating the vibrating tips to produce a Raman signal, and detecting the Raman signal using the detector.

Abstract translation: 表面增强拉曼光谱（SERS）装置，系统和方法采用配置成振动的多个纳米棒。 该装置包括纳米棒，其具有与连接到基底的端部相对的自由端处的尖端。 尖端被配置为吸附分析物并以振动频率振动。 该装置还包括一个振动源，其构造成以往复运动的振动频率使纳米棒的自由端振动。 纳米棒的振动被配置为便于检测由吸附在纳米棒尖端上的分析物发射的拉曼散射信号。 该系统还包括一个同步检测器，其被配置为接收拉曼信号并与纳米棒的振动协同地门控。 该方法包括诱导纳米棒的振动，照亮振动尖端以产生拉曼信号，以及使用检测器检测拉曼信号。

公开(公告)号：US20120194911A1

公开(公告)日：2012-08-02

申请号：US13384725

申请日：2009-09-23

Applicant: Jingjing Li ,  David A. Fattal ,  Raymond G. Beausoleil ,  Marco Fiorentino

Inventor： Jingjing Li ,  David A. Fattal ,  Raymond G. Beausoleil ,  Marco Fiorentino

IPC: G02B5/18 ,  G06F17/50 ,  B05D5/06

CPC classification number: G02B5/1809

Abstract: Embodiments of the present invention relate to planar optical devices composed of one or more sub-wavelength diffraction grating layers. In one embodiment, an optical device includes a first substantially planar reflective structure (104,1904), a second substantially planar reflective structure (106,1906), and a substantially planar sub-wavelength grating layer (102,1902) disposed between the first reflective structure and the second reflective structure. The grating layer is configured with lines (208-211, 214-217) having line widths, line thicknesses, and line period spacing selected to control phase changes in different portions of a beam of light transmitted through the optical device.

Abstract translation: 本发明的实施例涉及由一个或多个亚波长衍射光栅层组成的平面光学器件。 在一个实施例中，光学装置包括第一基本上平面的反射结构（104,1904），第二基本上平面的反射结构（106,1906），以及基本平坦的子波长光栅层（102,1902） 反射结构和第二反射结构。 光栅层配置有线（208-211,214-217），其具有线宽，线厚度和线周期间隔，其被选择用于控制透过光学器件的光束的不同部分中的相位变化。

公开(公告)号：US20120113418A1

公开(公告)日：2012-05-10

申请号：US13383078

申请日：2009-07-08

Applicant: David A. Fattal ,  Jingjing Li ,  Zhiyong Li ,  Shih-Yuan Wang

Inventor： David A. Fattal ,  Jingjing Li ,  Zhiyong Li ,  Shih-Yuan Wang

IPC: G01J3/44 ,  H01L21/20 ,  H01L33/06 ,  B82Y40/00 ,  B82Y99/00

CPC classification number: G01N21/658 ,  B82Y20/00

Abstract: A light amplifying device for surface enhanced Raman spectroscopy is disclosed herein. The device includes a dielectric layer having two opposed surfaces. A refractive index of the dielectric layer is higher than a refractive index of a material or environment directly adjacent thereto. At least one opening is formed in one of the two opposed surfaces of the dielectric layer, and at least one nano-antenna is established on the one of the two opposed surfaces of the dielectric layer. A gain region is positioned in the dielectric layer or adjacent to another of the two opposed surfaces of the dielectric layer.

Abstract translation: 本文公开了一种用于表面增强拉曼光谱的光放大装置。 该装置包括具有两个相对表面的电介质层。 电介质层的折射率高于与其直接相邻的材料或环境的折射率。 至少一个开口形成在电介质层的两个相对表面之一中，并且至少一个纳米天线被建立在电介质层的两个相对表面之一上。 增益区域位于电介质层中或邻近电介质层的两个相对表面中的另一个。

公开(公告)号：US20120013902A1

公开(公告)日：2012-01-19

申请号：US12836097

申请日：2010-07-14

Applicant: Min Hu ,  Alexandre M. Bratkovski ,  Huel Pei Kuo ,  Jingjing Li ,  Zhiyong Li ,  Fung Suong Ou ,  Michael Josef Stuke ,  Michael Renne Ty Tan ,  Shih-Yuan Wang ,  Wei Wu

Inventor： Min Hu ,  Alexandre M. Bratkovski ,  Huel Pei Kuo ,  Jingjing Li ,  Zhiyong Li ,  Fung Suong Ou ,  Michael Josef Stuke ,  Michael Renne Ty Tan ,  Shih-Yuan Wang ,  Wei Wu

IPC: G01J3/44

CPC classification number: G01J3/18 ,  G01J3/44 ,  G01N21/65 ,  G01N2021/651

Abstract: An apparatus for detecting at least one species using Raman light detection includes at least one laser source for illuminating a sample containing the at least one species. The apparatus also includes a modulating element for modulating a spatial relationship between the sample and the light beams to cause relative positions of the sample and the light beams to be oscillated, in which Raman light at differing intensity levels are configured to be emitted from the at least one species based upon the different wavelengths of the light beams illuminating the sample. The apparatus also includes a Raman light detector and a post-signal processing unit configured to detect the at least one species.

Abstract translation: 用于使用拉曼光检测来检测至少一种物质的装置包括用于照亮含有至少一种物质的样品的至少一个激光源。 该装置还包括用于调制样品与光束之间的空间关系的调制元件，以使得样品和光束的相对位置发生振荡，其中以不同强度水平的拉曼光被配置为从at 基于照射样品的光束的不同波长的至少一种物质。 该装置还包括拉曼光检测器和被配置为检测至少一种物种的后信号处理单元。

公开(公告)号：US20110315902A1

公开(公告)日：2011-12-29

申请号：US13254883

申请日：2009-03-07

Applicant: Wei Wu ,  Qiangfei Xia ,  Shih-Yuan Wang ,  Jingjing Li

Inventor： Wei Wu ,  Qiangfei Xia ,  Shih-Yuan Wang ,  Jingjing Li

IPC: G01N21/01

CPC classification number: G01N21/05 ,  B01L3/502715 ,  B01L2200/0647 ,  B01L2300/0851 ,  B01L2300/0864 ,  B01L2300/0867 ,  B01L2300/0896 ,  B01L2400/0487 ,  B01L2400/049 ,  G01N21/0303 ,  G01N21/31 ,  G01N2021/0346 ,  G01N2021/3133 ,  G01N2021/3166 ,  G01N2021/6467 ,  G01N2201/08

Abstract: An analyzer is disclosed herein. The analyzer encompasses a substrate having a surface with a plurality of distinct V-grooves formed therein. An input flow channel is configured to intersect and fluidly communicate with each of the plurality of distinct V-grooves at respective input points, and an output flow channel is configured to intersect and fluidly communicate with each of the plurality of distinct V-grooves at respective output points.

Abstract translation: 本文公开了分析器。 分析仪包括具有在其中形成有多个不同V形槽的表面的基板。 输入流通道被配置为在相应的输入点处与多个不同的V形槽中的每一个相交并且流体地连通，并且输出流动通道被配置为在相应的多个不同的V形槽 输出点。

公开(公告)号：US20110188033A1

公开(公告)日：2011-08-04

申请号：US12696853

申请日：2010-01-29

Applicant: Min Hu ,  Alexandre M. Bratkovski ,  Jingjing Li ,  Huei Pei Kuo ,  Zhiyong Li ,  Fung Suong Ou ,  Michael Josef Stuke ,  Michael Renne Ty Tan ,  Shih-Yuan Wang ,  Wei Wu

Inventor： Min Hu ,  Alexandre M. Bratkovski ,  Jingjing Li ,  Huei Pei Kuo ,  Zhiyong Li ,  Fung Suong Ou ,  Michael Josef Stuke ,  Michael Renne Ty Tan ,  Shih-Yuan Wang ,  Wei Wu

IPC: G01J3/44

CPC classification number: G01J3/44

Abstract: An apparatus for detecting at least one molecule using Raman light detection includes a substrate for supporting a sample containing the at least one molecule, a laser source for emitting a laser beam to cause Raman light emission from the at least one molecule, a modulating element for modulating a spatial relationship between the laser beam and the substrate at an identified frequency to cause the Raman light to be emitted from the at least one molecule at the identified frequency, at least one detector for detecting the Raman light emitted from the at least one molecule, and a post-signal processing unit configured to process the detected Raman light emission at the identified frequency to detect the at least one molecule.

Abstract translation: 用于使用拉曼光检测检测至少一个分子的装置包括用于支撑含有至少一个分子的样品的基底，用于发射激光束以产生来自至少一个分子的拉曼光发射的激光源， 以识别的频率调制激光束和衬底之间的空间关系，以使所述拉曼光以所识别的频率从所述至少一个分子发射;至少一个检测器，用于检测从所述至少一个分子发射的拉曼光 以及后信号处理单元，被配置为处理所识别的频率处的所检测的拉曼光发射以检测所述至少一个分子。

公开(公告)号：US07907275B2

公开(公告)日：2011-03-15

申请号：US12488318

申请日：2009-06-19

Applicant: Jingjing Li ,  Zhiyong Li ,  Wei Wu

Inventor： Jingjing Li ,  Zhiyong Li ,  Wei Wu

IPC: G01J3/44

CPC classification number: G01J3/44 ,  G01J3/02 ,  G01J3/0224 ,  G01N21/658

Abstract: A type and polarization selective device for Raman spectroscopy includes a set of at least two antennas and a gap at their intersection. First antenna geometry is such that it is configured to resonate, for first or second (different from the first) polarization, at a predetermined stimulation frequency of a material for which Raman scattering is to be studied, or at a Stokes or anti-Stokes frequency corresponding with the material when excited at stimulation frequency. Second antenna geometry is such that it is configured to resonate, for the other of second or first polarization, at the Stokes frequency when the first antenna is configured to resonate at the stimulation or anti-Stokes frequency, or at the anti-Stokes frequency when the first antenna is configured to resonate at the stimulation or Stokes frequency, or at the stimulation frequency when the first antenna is configured to resonate at the Stokes or anti-Stokes frequency.

Abstract translation: 用于拉曼光谱的类型和偏振选择装置包括至少两个天线的集合和它们的相交处的间隙。 第一天线几何形状使得其被配置为在要研究拉曼散射的材料的预定刺激频率下或在斯托克斯或反斯托克斯频率下谐振第一或第二（不同于第一极化）的极化 在刺激频率下激发时对应材料。 第二天线几何形状使得当第一天线被配置为以刺激或反斯托克斯频率或反斯托克斯频率谐振时，或者在反斯托克斯频率下，其被配置为在第二或第一极化中的另一个中以斯托克斯频率谐振， 第一天线被配置为在刺激或斯托克斯频率或刺激频率下谐振，当第一天线被配置为以斯托克斯或反斯托克斯频率谐振时。