公开(公告)号：US20140346357A1

公开(公告)日：2014-11-27

申请号：US14372779

申请日：2013-01-23

Applicant: The Regents of the University of Michigan

Inventor： Mona Jarrahi ,  Christopher W. Berry ,  Ning Wang ,  Shang-Hua Yang ,  Mohammed Reza Mahmoodi Hashemi

IPC: G01J3/10 ,  H01L33/38 ,  H01L33/04 ,  H01L31/0224 ,  H01L31/0352

CPC classification number: G01J3/108 ,  H01L31/0224 ,  H01L31/02327 ,  H01L31/035209 ,  H01L31/09 ,  H01L33/04 ,  H01L33/38

Abstract: A photoconductive device that includes a semiconductor substrate, an antenna assembly, and a photoconductive assembly with one or more plasmonic contact electrodes. The photoconductive assembly can be provided with plasmonic contact electrodes that are arranged on the semiconductor substrate in a manner that improves the quantum efficiency of the photoconductive device by plasmonically enhancing the pump absorption into the photo-absorbing regions of semiconductor substrate. In one exemplary embodiment, the photoconductive device is arranged as a photoconductive source and is pumped at telecom pump wavelengths (e.g., 1.0-1.6 μm) and produces milliwatt-range power levels in the terahertz (THz) frequency range.

Abstract translation: 一种光电导装置，其包括半导体衬底，天线组件和具有一个或多个等离子体激元接触电极的光电导组件。 光电导组件可以设置有等离子体接触电极，这些等离子体激元接触电极以通过等离子体增强泵吸收到半导体衬底的光吸收区域中的方式提供光导器件的量子效率的方式设置在半导体衬底上。 在一个示例性实施例中，光电导器件被布置为光电导源，并且以电信泵浦波长（例如，1.0-1.6μm）泵浦，并产生太赫兹（THz）频率范围内的毫瓦范围功率电平。

公开(公告)号：US20140326899A1

公开(公告)日：2014-11-06

申请号：US14305769

申请日：2014-06-16

Applicant: Cabot Security Materials, Inc.

Inventor： Scott T. Haubrich ,  Jainisha Shah ,  Steven R. Cordero

IPC: G01N21/64

CPC classification number: G01N21/64 ,  C09K11/7792 ,  F41J2/02 ,  G01J3/108 ,  G01N2021/6495 ,  G01N2021/6497 ,  G07D7/12 ,  G07D7/1205 ,  H04N5/33 ,  Y10T428/2982

Abstract: A particulate composition comprises a plurality of particles wherein at least one of the particles comprises at least two different crystalline and/or glass phases, each phase comprising a host lattice and a dopant sensitive to electromagnetic radiation. The different phases simultaneously produce different responses on exposure to photons of the same energy, whereby the output from the particulate composition when exposed to said photons is the sum of the responses from the different phases.

Abstract translation: 颗粒组合物包含多个颗粒，其中至少一个颗粒包含至少两个不同的晶体和/或玻璃相，每个相包含主体晶格和对电磁辐射敏感的掺杂剂。 不同的相同时在暴露于相同能量的光子时产生不同的响应，由此当暴露于所述光子时，颗粒组合物的输出是来自不同相的响应的总和。

公开(公告)号：US08859303B2

公开(公告)日：2014-10-14

申请号：US13466626

申请日：2012-05-08

Applicant: Florin Udrea ,  Julian Gardner ,  Syed Zeeshan Ali ,  Mohamed Foysol Chowdhury ,  Ilie Poenaru

Inventor： Florin Udrea ,  Julian Gardner ,  Syed Zeeshan Ali ,  Mohamed Foysol Chowdhury ,  Ilie Poenaru

IPC: H01L21/00 ,  H05B3/26

CPC classification number: H05B3/267 ,  G01J3/108 ,  H05B2203/032

Abstract: An IR source in the form of a micro-hotplate device including a CMOS metal layer made of at least one layer of embedded on a dielectric membrane supported by a silicon substrate. The device is formed in a CMOS process followed by a back etching step. The IR source also can be in the form of an array of small membranes —closely packed as a result of the use of the deep reactive ion etching technique and having better mechanical stability due to the small size of each membrane while maintaining the same total IR emission level. SOI technology can be used to allow high ambient temperature and allow the integration of a temperature sensor, preferably in the form of a diode or a bipolar transistor right below the IR source.

Abstract translation: 微电子装置形式的IR源，其包括由至少一层嵌入在由硅衬底支撑的电介质膜上的CMOS金属层。 该器件以CMOS工艺形成，随后是背蚀刻步骤。 红外光源还可以是小型膜阵列的形式，由于使用了深反应离子蚀刻技术而被密封包装，并且由于每个膜的小尺寸而具有更好的机械稳定性，同时保持相同的总IR 排放水平。 可以使用SOI技术来允许高环境温度并且允许温度传感器的集成，优选地在IR源的正下方的二极管或双极晶体管的形式。

公开(公告)号：US08643532B1

公开(公告)日：2014-02-04

申请号：US12710138

申请日：2010-02-22

Applicant: Irina Puscasu ,  Edward A. Johnson

Inventor： Irina Puscasu ,  Edward A. Johnson

IPC: H01Q17/00 ,  H01Q15/14 ,  H04K3/00 ,  G01S7/02 ,  G01S13/00

CPC classification number: G02F1/174 ,  G01J3/108 ,  G01N21/3504 ,  G02F1/19 ,  G02F2201/083 ,  G02F2201/307 ,  G02F2202/10 ,  G02F2202/32 ,  G02F2203/055 ,  G02F2203/10 ,  G02F2203/11 ,  G02F2203/48 ,  H01Q15/006 ,  H01Q15/0066

Abstract: Methods and apparatus for providing a tunable absorption-emission band in a wavelength selective device are disclosed. A device for selectively absorbing incident electromagnetic radiation includes an electrically conductive surface layer including an arrangement of multiple surface elements. The surface layer is disposed at a nonzero height above a continuous electrically conductive layer. An electrically isolating intermediate layer defines a first surface that is in communication with the electrically conductive surface layer. The continuous electrically conductive backing layer is provided in communication with a second surface of the electrically isolating intermediate layer. When combined with an infrared source, the wavelength selective device emits infrared radiation in at least one narrow band determined by a resonance of the device. In some embodiments, the device includes a control feature that allows the resonance to be selectively modified. The device has broad applications including gas detection devices and infrared imaging.

Abstract translation: 公开了一种用于在波长选择装置中提供可调吸收发射带的方法和装置。 用于选择性地吸收入射电磁辐射的装置包括包括多个表面元件的布置的导电表面层。 表层设置在连续导电层上方的非零高度处。 电隔离中间层限定与导电表面层连通的第一表面。 连续导电背衬层设置成与电绝缘中间层的第二表面连通。 当与红外源组合时，波长选择装置在由装置的谐振确定的至少一个窄带中发射红外辐射。 在一些实施例中，该装置包括允许选择性地修改共振的控制特征。 该装置具有广泛的应用，包括气体检测装置和红外成像。

公开(公告)号：US20130292571A1

公开(公告)日：2013-11-07

申请号：US13481695

申请日：2012-05-25

Applicant: Anadi Mukherjee ,  Manu Prasanna ,  Nandini Mukherjee

Inventor： Anadi Mukherjee ,  Manu Prasanna ,  Nandini Mukherjee

IPC: G01J3/10

CPC classification number: G01J3/108 ,  A61B1/00172 ,  A61B1/0638 ,  G01J3/1804 ,  G01J3/2823 ,  G01J2003/104 ,  G01N21/35 ,  G01N2201/06113 ,  G02B26/105 ,  G02B27/102 ,  G02B27/48

Abstract: Optically multiplexed mid-infrared laser systems and the use of such systems for detection and measurement of target materials using multispectral image analysis are disclosed. The systems and methods disclosed herein are useful for detecting and measuring materials in applications such as trace detection, medical diagnostics, medical monitoring, quality control, and high-throughput molecular recognition.

Abstract translation: 公开了光复用中红外激光系统以及使用这种系统用于使用多光谱图像分析来检测和测量目标材料。 本文公开的系统和方法可用于检测和测量诸如痕量检测，医学诊断，医学监测，质量控制和高通量分子识别等应用中的材料。

公开(公告)号：US20130120830A1

公开(公告)日：2013-05-16

申请号：US13298066

申请日：2011-11-16

Applicant: Andreas G. Nowatzyk

Inventor： Andreas G. Nowatzyk

IPC: H01S5/50

CPC classification number: G02F1/39 ,  G01J3/0264 ,  G01J3/108 ,  G01N21/27 ,  G01N21/64 ,  G01N21/645 ,  G01N2201/123 ,  G02B21/0096 ,  G02F2001/392 ,  H03F3/08 ,  H03F7/00

Abstract: A solid state detection system includes a degenerate photo-parametric amplifier (PPA), wherein the PPA comprises a photo diode, and a periodically pulsed light source, wherein the photo-parametric amplifier (PPA) is synchronized to the pulsed light source with a phase locked loop that generates a pump waveform for the PPA at twice the frequency of the excitation pulse rate.

Abstract translation: 固态检测系统包括退化光参数放大器（PPA），其中PPA包括光电二极管和周期性脉冲光源，其中光参数放大器（PPA）与脉冲光源同步相位 锁定环路，以激励脉冲频率的两倍产生PPA的泵浦波形。

公开(公告)号：US20120239013A1

公开(公告)日：2012-09-20

申请号：US13241900

申请日：2011-09-23

Applicant: Mohammed N. Islam

Inventor： Mohammed N. Islam

IPC: A61B18/22

CPC classification number: G01J3/108 ,  G01B9/02091 ,  G01J3/0218 ,  G01J3/0245 ,  G01J3/42 ,  G01J2003/102 ,  G01J2003/423 ,  G02B6/29349 ,  G02F1/365 ,  G02F2001/3528 ,  G02F2202/32 ,  H01S3/06725 ,  H01S3/06754 ,  H01S3/094007 ,  H01S3/094069 ,  H01S3/094076 ,  H01S3/1024 ,  H01S3/302 ,  H01S5/0064 ,  H01S5/0085 ,  H01S5/0092 ,  H01S5/1092 ,  H01S5/146 ,  H01S5/4012 ,  H01S2301/085

Abstract: A broadband light source includes one or more laser diodes that are capable of generating a pump signal having a wavelength shorter than 2.5 microns, a pulse width of at least 100 picoseconds and a pump optical spectral width. The light source also includes one or more optical amplifiers that are coupled to the pump signal and are capable of amplifying the pump signal to a peak power of at least 500 W. The light source further includes a first fiber that is coupled to the one or more optical amplifiers. The first fiber including an anomalous group-velocity dispersion regime and a modulational instability mechanism that operates to modulate the pump signal. The light source also includes a nonlinear element that is coupled to the first fiber that is capable of broadening the pump optical spectral width to at least 100 nm through a nonlinear effect in the nonlinear element.

Abstract translation: 宽带光源包括能够产生波长短于2.5微米的泵浦信号，至少100皮秒的脉冲宽度和泵浦光谱宽度的一个或多个激光二极管。 光源还包括耦合到泵浦信号并且能够将泵浦信号放大到至少500W的峰值功率的一个或多个光放大器。光源还包括第一光纤，其耦合到一个或 更多的光放大器。 第一光纤包括异常组 - 速度色散方案和用于调制泵浦信号的调制不稳定机制。 光源还包括耦合到第一光纤的非线性元件，其能够通过非线性元件中的非线性效应将泵浦光谱宽度扩展至至少100nm。

公开(公告)号：US08228129B2

公开(公告)日：2012-07-24

申请号：US12265930

申请日：2008-11-06

Applicant: Delmar L. Barker ,  William R. Owens ,  Patrick O. Kano

Inventor： Delmar L. Barker ,  William R. Owens ,  Patrick O. Kano

IPC: H03B5/32 ,  G01J3/44

CPC classification number: G01J3/42 ,  G01J3/10 ,  G01J3/108 ,  G01N21/3581

Abstract: A thermally powered source of IR or THz radiation combines low dimension nano-scale oscillators such as nano-wires and nano-tubes with micro-scale photonic crystal resonant defect cavities for efficient generation, coupling and transmission of electromagnetic radiation. The oscillators have M=0, 1 or 2 resonant dimensions on a micro-scale (approximately 1 um to approximately 1 mm) to emit radiation having a local peak at a desired wavelength in the IR or THz regions. The oscillators have at least one non-resonant dimension on a nano-scale (less than approximately 100 nm) to suppress vibration modes in that dimension and channel more thermal energy into the local peak. The photonic crystal defect cavities have N=1, 2 or 3 (N>M) resonant dimensions on the microscale with lengths comparable to the length of the oscillator and the desired wavelength to exhibit a cavity resonant that overlaps the local peak to accept and transmit emitted radiation. The energy from multiple oscillator/defect cavities pairs can be collected and transmitted by an internal waveguide or external mirrors and lens to a specified location where it is output. To improve coupling efficiency, the oscillators and defect cavities preferably exhibit a physical symmetry so that they are substantially “mode matched”. The integration of nano-scale emitters with micro-scale photonic crystal defect cavities creates a new class of metamaterials that more efficient generate radiation.

Abstract translation: IR或THz辐射的热源来源组合了纳米线和纳米管的小尺寸纳米级振荡器，具有微尺度光子晶体谐振缺陷腔，用于有效地产生，耦合和传输电磁辐射。 振荡器在微尺度（大约1到大约1毫米）上具有M = 0,1或2个共振尺寸以发射在IR或THz区域中具有期望波长的局部峰的辐射。 振荡器在纳米级（小于约100nm）具有至少一个非谐振尺寸，以抑制该尺寸中的振动模式，并将更多的热能引入局部峰。 光子晶体缺陷腔在微尺度上具有N = 1,2或3（N> M）谐振尺寸，其长度与振荡器的长度和期望的波长相当，以呈现与局部峰值重叠的腔谐振，以接受和发射 发射辐射。 来自多个振荡器/缺陷腔对的能量可以被内部波导或外部反射镜和透镜收集并传输到其输出的指定位置。 为了提高耦合效率，振荡器和缺陷腔优选地呈现物理对称性，使得它们基本上“模式匹配”。 纳米尺度发射器与微尺度光子晶体缺陷腔的集成产生了更有效地产生辐射的新类型的超材料。

公开(公告)号：US20120153155A1

公开(公告)日：2012-06-21

申请号：US11974856

申请日：2007-10-15

Applicant: Timothy J. Johnson

Inventor： Timothy J. Johnson

IPC: G01N21/59

CPC classification number: G01J3/108 ,  G01N21/3504

Abstract: Novel systems and methods for remotely detecting at least one constituent of a gas via infrared detection are provided. A system includes at least one extended source of broadband infrared radiation and a spectrally sensitive receiver positioned remotely from the source. The source and the receiver are oriented such that a surface of the source is in the field of view of the receiver. The source includes a heating component thermally coupled to the surface, and the heating component is configured to heat the surface to a temperature above ambient temperature. The receiver is operable to collect spectral infrared absorption data representative of a gas present between the source and the receiver. The invention advantageously overcomes significant difficulties associated with active infrared detection techniques known in the art, and provides an infrared detection technique with a much greater sensitivity than passive infrared detection techniques known in the art.

公开(公告)号：US20120062871A1

公开(公告)日：2012-03-15

申请号：US13255946

申请日：2010-03-12

Applicant: Renato Bugge

Inventor： Renato Bugge

IPC: G01N21/55 ,  G01J3/00 ,  G01N21/47

CPC classification number: G01N21/39 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0237 ,  G01J3/108 ,  G01N21/3577 ,  G01N21/4738 ,  G01N21/53 ,  G01N21/55 ,  G01N33/1833 ,  G01N2021/1797

Abstract: The invention relates to measurement of chemical spillage, such as oil spillage, by the use of one or more IR-lasers, necessary optics and optical sensors. The measurements are performed by reflecting the emitted light from the laser(s) back from the chemical and registered by optical sensors. To accurately detecting the chemical the system utilizes at least three different wavelengths which are emitted from one or more lasers. The wavelengths are chosen so that the reflection from the chemical is different for at least three of these, and that it can be distinguished from the background.

Abstract translation: 本发明涉及通过使用一个或多个IR激光器，必要的光学元件和光学传感器来测量化学品溢出物，例如溢油。 通过将来自激光器的发射光从化学物质反射回并由光学传感器注册来进行测量。 为了准确地检测化学物质，系统利用从一个或多个激光器发出的至少三种不同的波长。 选择波长使得来自化学品的反射对于这些中的至少三个而言是不同的，并且其可以与背景区分开。