公开(公告)号：US20140052003A1

公开(公告)日：2014-02-20

申请号：US14113528

申请日：2012-04-04

Applicant: Zhi-Xing Jiang ,  Anthony Pierry

Inventor： Zhi-Xing Jiang ,  Anthony Pierry

IPC: A61B5/08

CPC classification number: A61B5/082 ,  G01J3/108 ,  G01N21/274 ,  G01N21/3504 ,  G01N21/85

Abstract: An infrared detector includes a radiation source configured to emit electromagnetic radiation. The detector includes a source monitoring apparatus configured to generate output signals (62) related to electrical resistance through the radiation source. The output signals are used to account for radiation source temperature in measurements by the detector. The output signals may be used (72) in the provision of power to the radiation source to maintain the temperature of the detector at a beneficial level. The detector is configured to monitor a level of a gaseous molecular species within a flow of breathable gas.

Abstract translation: 红外检测器包括被配置为发射电磁辐射的辐射源。 检测器包括源监测装置，其被配置为产生与通过辐射源的电阻相关的输出信号（62）。 输出信号用于考虑检测器测量中的辐射源温度。 可以使用输出信号（72）来向辐射源提供功率以将检测器的温度维持在有益水平。 检测器被配置为监测可呼吸气体流中的气态分子物质的水平。

公开(公告)号：US08610067B2

公开(公告)日：2013-12-17

申请号：US13592549

申请日：2012-08-23

Applicant: Jiri Holoubek ,  Ratnesh Thapliyal ,  Florian Krogmann ,  Thomas Burgler

Inventor： Jiri Holoubek ,  Ratnesh Thapliyal ,  Florian Krogmann ,  Thomas Burgler

IPC: G01J5/00

CPC classification number: G01J3/108 ,  G01J3/0218 ,  G01J3/42 ,  H01K1/10

Abstract: A radiation source for emitting infrared electromagnetic radiation and having at least one source element. The radiation source is characterized by features including that: the source element is embodied in the form of a silicon carbide fiber; the source element is coated at least sectionally with a metal coating, via which the source element can be heated; and the metal coating heats the source element at least at times in such a manner that the source element emits infrared radiation at least at times. A method for the manufacture of a radiation source is likewise relevant.

Abstract translation: 一种用于发射红外电磁辐射并具有至少一个源元件的辐射源。 辐射源的特征在于特征包括：源元件以碳化硅纤维的形式体现; 源元件至少以金属涂层分段涂覆，源元件可以通过其加热; 并且金属涂层至少有时以这样的方式加热源元件，使得源元件至少有时发射红外辐射。 用于制造辐射源的方法同样是相关的。

公开(公告)号：US20130240740A1

公开(公告)日：2013-09-19

申请号：US13795978

申请日：2013-03-12

Applicant: CANON KABUSHIKI KAISHA

Inventor： Toshihiko Ouchi

IPC: G01J5/08

CPC classification number: G01J5/0818 ,  G01J3/108 ,  G01J3/42 ,  G01N21/3581 ,  G01N21/3586 ,  G01N21/553

Abstract: A sensor device has an optical waveguide containing an electro-optic crystal for propagating light, a coupler provided adjacent to the optical waveguide to propagate a terahertz wave generated from the electro-optic crystal as a result of the propagation of light in the optical waveguide, and a detector for detecting the terahertz wave propagating through the coupler or the light propagating through the optical waveguide. The terahertz wave is totally reflected in a section of the coupler opposite to a section where the coupler is adjacent to the optical waveguide while passing through and propagating in the optical waveguide, and in the total reflection section, the terahertz wave interacts with a subject placed close to the total reflection section.

Abstract translation: 传感器装置具有包含用于传播光的电光晶体的光波导，邻近光波导设置的耦合器，由于光在光波导中的传播而传播由电光晶体产生的太赫兹波， 以及检测器，用于检测通过耦合器传播的太赫波或通过光波导传播的光。 太赫兹波在耦合器与光波导相邻的部分相反的部分中完全反射，同时穿过并在光波导中传播，并且在全反射部分中，太赫兹波与被放置的对象相互作用 靠近全反射部分。

公开(公告)号：US08514482B2

公开(公告)日：2013-08-20

申请号：US13272638

申请日：2011-10-13

Applicant: Masato Okano

Inventor： Masato Okano

IPC: G02F1/35 ,  G02F2/02 ,  H01S3/10

CPC classification number: G02F1/353 ,  G01J3/108 ,  G01N21/3563 ,  G01N21/3581 ,  G02B5/1814 ,  G02F1/3534 ,  G02F2001/3505 ,  G02F2001/3509 ,  G02F2203/13

Abstract: A terahertz electromagnetic wave generating element can include a generation layer, and a plurality of pairs of layer structures provided on opposite sides thereof. The layer structures are each provided with a first layer, a second layer on the side of the first layer opposite to the generation layer, and a first grating and a second grating, and having a grating period smaller than the wavelength of the terahertz electromagnetic wave to be used. The first and second gratings are configured so that the refractive index of a medium between the first layer and the second layer continuously varies between a first refractive index and a second refractive index. The thickness of the first and second layers and the grating period, and the grating height are determined so that a terahertz electromagnetic wave having a desired bandwidth with respect to a central wavelength of the terahertz electromagnetic wave generated by the generation layer can be generated.

Abstract translation: 太赫兹电磁波发生元件可以包括发生层和设置在其相对侧上的多对层结构。 层结构分别设置有与第一层相反的第一层，与第一层相反的第二层，以及第一栅格和第二栅格，并且具有小于太赫兹电磁波的波长的光栅周期 要使用的。 第一和第二光栅被配置成使得第一层和第二层之间的介质的折射率在第一折射率和第二折射率之间连续变化。 确定第一层和第二层的厚度以及光栅周期和光栅高度，使得可以产生相对于由发生层产生的太赫兹电磁波的中心波长具有期望带宽的太赫兹电磁波。

公开(公告)号：US08424292B2

公开(公告)日：2013-04-23

申请号：US12650825

申请日：2009-12-31

Applicant: Scott M. Hoyte ,  Vivek V. Badami ,  Chayan Mitra ,  Ayan Banerjee

Inventor： Scott M. Hoyte ,  Vivek V. Badami ,  Chayan Mitra ,  Ayan Banerjee

IPC: F01N3/00

CPC classification number: G01J3/10 ,  B01D53/8631 ,  B01D53/9431 ,  B01D53/9495 ,  F01N3/208 ,  F01N11/00 ,  F01N2560/021 ,  F01N2560/026 ,  F01N2560/028 ,  F01N2560/12 ,  F01N2610/02 ,  G01J3/02 ,  G01J3/0294 ,  G01J3/108 ,  G01J3/32 ,  G01J3/36 ,  G01J3/42 ,  G01J2003/104 ,  G01M15/108 ,  G01N21/3504 ,  G01N21/359 ,  G01N21/39 ,  G01N2021/399 ,  Y02T10/24 ,  Y02T10/47

Abstract: A system for the monitoring and/or controlling emission levels of nitrogen oxide and a reductant from a stream of combustion exhaust, wherein the internal combustion engine includes a SCR unit disposed in the stream of combustion exhaust between an upstream conduit and a downstream conduit, the SCR unit having a catalyst that is configured to catalytically reduce nitrogen oxides contained in the combustion exhaust to elemental nitrogen in the presence of a reductant and oxygen, and wherein the internal combustion engine further includes a reductant injector; the system comprising: a laser absorption spectroscopy unit that is disposed in the downstream conduit and configured to measure the concentration level of at least nitrogen oxide and the reductant in the exhaust; and a control unit.

Abstract translation: 一种用于监测和/或控制来自燃烧排气流的氮氧化物和还原剂的排放水平的系统，其中所述内燃机包括设置在上游管道和下游管道之间的燃烧排气流中的SCR单元， SCR单元，其具有催化剂，其被配置为在还原剂和氧气存在下将包含在燃烧废气中的氮氧化物催化还原成元素氮，并且其中所述内燃机还包括还原剂喷射器; 所述系统包括：激光吸收光谱单元，其设置在所述下游导管中并且被配置为测量所述排气中的至少氮氧化物和所述还原剂的浓度水平; 和控制单元。

公开(公告)号：US08391660B2

公开(公告)日：2013-03-05

申请号：US13241900

申请日：2011-09-23

Applicant: Mohammed N. Islam

Inventor： Mohammed N. Islam

IPC: G02B6/00

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：US20120235067A1

公开(公告)日：2012-09-20

申请号：US13299492

申请日：2011-11-18

Applicant: Ismail Emre ARACI ,  Veysi Demir ,  Aleksandr V. Kropachev

Inventor： Ismail Emre ARACI ,  Veysi Demir ,  Aleksandr V. Kropachev

IPC: B01J19/12

CPC classification number: B82Y20/00 ,  G01J3/108 ,  H01L49/00

Abstract: Provided are methods of tuning the emission wavelength from a tunable infrared plasmonic emitting structure, which structure comprises: (a) a perforated or patterned first conductive layer having a plurality of relief features provided in a periodic spatial configuration, wherein the relief features are separated from each other by adjacent recessed features, wherein the distance between features is between 1-15 μm; (b) a dielectric layer underlying the first conductive layer; (c) a second conductive layer underlying the dielectric film; and (d) a substrate underlying the second conductive layer; wherein the emission wavelength is tuned by applying a force in a biaxial direction parallel to the substrate, changing the distance between relief features, or changing the resistivity and dielectric constant of the dielectric layer.

Abstract translation: 提供了从可调谐红外等离子体发射结构调谐发射波长的方法，该结构包括：（a）具有设置在周期性空间配置中的多个浮雕特征的穿孔或图案化的第一导电层，其中所述浮雕特征与 彼此相邻的凹陷特征，其中特征之间的距离在1-15μm之间; （b）位于第一导电层下面的电介质层; （c）介电膜下面的第二导电层; 和（d）第二导电层下面的衬底; 其中发射波长通过在平行于衬底的双轴方向施加力，改变凸起特征之间的距离或改变电介质层的电阻率和介电常数来调谐。

公开(公告)号：US20120228502A1

公开(公告)日：2012-09-13

申请号：US13400284

申请日：2012-02-20

Applicant: Peter M. Willis ,  Joshua Allen Slavens

Inventor： Peter M. Willis ,  Joshua Allen Slavens

IPC: G01J5/00

CPC classification number: G01J3/433 ,  G01J3/108 ,  G01J5/02 ,  G01J5/10 ,  G01J5/20

Abstract: A pulse-width-modulated voltage is applied to an IR emitter during the on-time of a primary drive voltage having a frequency of about 2.5 Hz in order to control the power to a predetermined desired level. The secondary modulation is at about 800 Hz. The lower response time of the emitter will, in effect, filter the higher frequency, and it will appear that an average power is being applied to the emitter during the on-time.

Abstract translation: 在频率约为2.5Hz的初级驱动电压的接通时间内，向IR发射器施加脉冲宽度调制电压，以将功率控制到预定的期望电平。 二次调制在约800Hz。 发射器的较低响应时间实际上将过滤较高的频率，并且在导通时间期间会发现平均功率被施加到发射器。

公开(公告)号：US08153998B2

公开(公告)日：2012-04-10

申请号：US11699977

申请日：2007-01-30

Applicant: Dietmar Neuhaus

Inventor： Dietmar Neuhaus

IPC: H05B6/00

CPC classification number: G01J3/42 ,  G01J3/02 ,  G01J3/0256 ,  G01J3/108

Abstract: A temperature radiator, which comprises an emission surface emitting a thermal radiation, is provided with a radiation converter to which a laser beam is irradiated. The radiation converter comprises a micro-structured receiving surface and a micro-structured emission surface. These two surfaces are surrounded by a smooth boundary. The laser radiation is absorbed at the receiving surface and converted into thermal radiation which is emitted in a uniformly distributed manner at the emission surface.

Abstract translation: 包括发射热辐射的发射表面的温度辐射器设置有照射激光束的辐射转换器。 辐射转换器包括微结构的接收表面和微结构的发射表面。 这两个表面被平滑的边界包围。 激光辐射在接收表面被吸收，并被转换为以均匀分布的方式在发射表面发射的热辐射。

公开(公告)号：US20120060510A1

公开(公告)日：2012-03-15

申请号：US12880681

申请日：2010-09-13

Applicant: Vivek Venugopal Badami ,  Scott Mordin Hoyte ,  Chayan Mitra ,  Ayan Banerjee

Inventor： Vivek Venugopal Badami ,  Scott Mordin Hoyte ,  Chayan Mitra ,  Ayan Banerjee

IPC: F02C7/20 ,  H01S3/10

CPC classification number: G01K13/02 ,  G01J3/108 ,  G01J3/427 ,  G01K11/12 ,  G01K2013/024

Abstract: A combustion gas measurement apparatus mounted in a gas turbine including: a tunable laser generating a radiation beam passing through a combustion gas path; a controller tuning the laser to emit radiation having at least a first selected wavelength and a second selected wavelength which both correspond to temperature-dependent transitions of a combustion species of the gas, wherein the first selected wavelength and the second selected wavelength are not near absorption peaks of neighboring wavelengths; a detector sensing the radiation beam passing through the combustion gas and generating an absorption signal indicative of an absorption of the beam by the combustion gas at each of the first wavelength and the second wavelength, and a processor executing a program stored on a non-transitory storage medium determining a combustion gas temperature based on a ratio of the adoption signals for the first wavelength and the second wavelength.

Abstract translation: 一种安装在燃气轮机中的燃烧气体测量装置，包括：可调谐激光器，其产生通过燃烧气体路径的辐射束; 调谐所述激光器以发射具有至少第一选定波长和第二选定波长的辐射的控制器，其对应于所述气体的燃烧物质的温度依赖性跃迁，其中所述第一选定波长和所述第二选定波长不接近吸收 相邻波长的峰; 检测器，其感测通过燃烧气体的辐射束，并且产生指示在第一波长和第二波长中的每一个处由燃烧气体吸收光束的吸收信号，以及处理器，其执行存储在非瞬时的程序 存储介质基于第一波长和第二波长的采用信号的比率来确定燃烧气体温度。