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1. 发明申请

US20190129277A1 VARIABLE-ASTIGMATISM BEAM ADAPTATION DEVICE AND FREQUENCY CONVERSION UNITS 审中-公开
公开(公告)号：US20190129277A1
公开(公告)日：2019-05-02
申请号：US16223486
申请日：2018-12-18
申请人： TRUMPF LASER GMBH
发明人： Ivo Zawischa , Markus Graf , Carolin Wagner
IPC分类号： G02F1/35 , G02F1/355 , G02F1/377
CPC分类号： G02F1/3532 , G02B27/0911 , G02F1/353 , G02F1/3544 , G02F1/3551 , G02F1/377 , G02F2001/3503 , G02F2001/354
摘要： Beam adaptation devices are disclosed for variable-astigmatic adjustment of electromagnetic radiation propagating along a beam axis of the beam adaptation device. The devices include a first astigmatism lens unit, which provides at least one first lens tiltable with respect to the beam axis for astigmatism adjustment, a divergence matching lens unit with a second lens for adjusting the divergence, wherein the distance between the second lens and the first lens along the beam axis is adjustable, and a second astigmatism lens unit with at least one third lens tiltable with respect to the beam axis for astigmatism adjustment. To adjust the magnitude of the electromagnetic radiation on the third lens, the distance between the second lens and the third lens along the beam axis is adjustable. The beam adaptation device can be used, for example, for astigmatic pre-compensation in frequency conversion.

2. 发明申请

US20180164657A1 OPTICAL QUANTIFICATION OF INTERFACIAL CHARGE STATES 审中-公开
公开(公告)号：US20180164657A1
公开(公告)日：2018-06-14
申请号：US15834250
申请日：2017-12-07
申请人： Northwestern University , Battelle Memorial Institute , The Trustees of Columbia University in the City of New York
发明人： Franz M. Geiger , Paul E. Ohno , Hong-fei Wang , Kenneth B. Eisenthal
IPC分类号： G02F1/35 , G01N21/63 , G01N21/84 , G02F1/377 , G02F1/355
CPC分类号： G02F1/3532 , G01N21/636 , G01N21/84 , G02F1/355 , G02F1/37 , G02F1/377
摘要： Methods of generating second harmonic generation (SHG) signals from interfaces formed with, or formed over, a noncentrosymmetric material, e.g., α-quartz, are provided. The methods make use of the noncentrosymmetric material as an internal phase reference for the determination of a variety of interfacial electrostatic parameters, including interfacial potential, interfacial charge density, and the sign of the interfacial charge (i.e., net positive or net negative).

3. 发明申请

US20180157149A1 QUASI-PHASE-MATCHED FREQUENCY DOUBLING OF BROADBAND LIGHT WITH UNCORRELATED SPECTRAL PHASE 审中-公开
公开(公告)号：US20180157149A1
公开(公告)日：2018-06-07
申请号：US15822922
申请日：2017-11-27
申请人： Dolby Laboratories Licensing Corporation
发明人： Alireza MARANDI , Gennady IMESHEV , Dzhakhangir V. KHAYDAROV , Gregory David MILLER
IPC分类号： G02F1/377 , H01S3/109 , G03B21/20
CPC分类号： G02F1/3775 , G02F1/3532 , G03B21/2033 , G03B21/204 , G03B21/206 , H01S3/109 , H01S5/0092 , H01S5/4012 , H01S5/405 , H01S5/4087
摘要： A device for quasi-phase-matched frequency doubling of broadband light with uncorrelated spectral phase includes a nonlinear optical material, which in turn includes a domain-reversed grating organized in a series of sections along propagation direction of the broadband light through the nonlinear optical material. Each of the sections is characterized by a respective period of the domain-reversed grating. The period within a first connected subset of the series alternates between two discrete values along the propagation direction. A method for designing the domain-reversed grating includes determining a grating function model describing an ideal nonlinear coefficient of a domain-reversed grating, and discretizing the grating function model to a manufacturable grating function having period restricted to a discrete set of manufacturable periods.

4. 发明授权

US09897893B2 Terahertz wave generation apparatus 有权
公开(公告)号：US09897893B2
公开(公告)日：2018-02-20
申请号：US15411086
申请日：2017-01-20
申请人： SHIBUYA CORPORATION
发明人： Kodo Kawase , Toshiaki Naka , Motoi Sasaki , Akito Tsuchiya
IPC分类号： G02F1/35 , G02F1/39 , H01S3/00 , G02F2/02
CPC分类号： G02F1/3501 , G02F1/3532 , G02F1/39 , G02F2001/3503 , G02F2001/3507 , G02F2001/392 , G02F2201/302 , G02F2203/13 , H01S3/0092 , H01S2302/02
摘要： In a terahertz wave generation apparatus including a first non-linear optical crystal 3 on which first laser L1 and second laser L2 from laser generation means 2 are incident to generate terahertz wave TH1, the laser generation means includes a second non-linear optical crystal 7 on which laser having the same wavelength as that of the second laser is incident to generate idler light L1 including a plurality of wavelengths, and makes the idler light L1 generated from the second non-linear optical crystal incident on the first non-linear optical crystal as the first laser L1, to generate terahertz wave including a plurality of wavelengths from the first non-linear optical crystal 3, and wavelength selection means including a transmission section which transmits an idler light having the specific wavelength in the idler light including the plurality of wavelengths can be provided, as needed. Thus, terahertz wave having a high output power and including a plurality of wavelengths can be obtained, and the wavelength selection means easily obtains a required terahertz wave having the specific wavelength.

5. 发明申请

US20170219911A1 TERAHERTZ WAVE GENERATION APPARATUS 有权
公开(公告)号：US20170219911A1
公开(公告)日：2017-08-03
申请号：US15411086
申请日：2017-01-20
申请人： SHIBUYA CORPORATION
发明人： Kodo KAWASE , Toshiaki NAKA , Motoi SASAKI , Akito TSUCHIYA
IPC分类号： G02F1/35 , G02F1/39
CPC分类号： G02F1/3501 , G02F1/3532 , G02F1/39 , G02F2001/3503 , G02F2001/3507 , G02F2001/392 , G02F2201/302 , G02F2203/13 , H01S3/0092 , H01S2302/02
摘要： In a terahertz wave generation apparatus including a first non-linear optical crystal 3 on which first laser L1 and second laser L2 from laser generation means 2 are incident to generate terahertz wave TH1, the laser generation means includes a second non-linear optical crystal 7 on which laser having the same wavelength as that of the second laser is incident to generate idler light L1 including a plurality of wavelengths, and makes the idler light L1 generated from the second non-linear optical crystal incident on the first non-linear optical crystal as the first laser L1, to generate terahertz wave including a plurality of wavelengths from the first non-linear optical crystal 3, and wavelength selection means including a transmission section which transmits an idler light having the specific wavelength in the idler light including the plurality of wavelengths can be provided, as needed. Thus, terahertz wave having a high output power and including a plurality of wavelengths can be obtained, and the wavelength selection means easily obtains a required terahertz wave having the specific wavelength.

6. 发明申请

US20160349177A1 CARBON ISOTOPE ANALYSIS DEVICE AND CARBON ISOTOPE ANALYSIS METHOD 有权
标题翻译：碳同位素分析装置和碳同位素分析方法
公开(公告)号：US20160349177A1
公开(公告)日：2016-12-01
申请号：US15234554
申请日：2016-08-11
申请人： SEKISUI MEDICAL CO., LTD. , National University Corporation Nagoya University
发明人： Tetsuo IGUCHI , Hideki TOMITA , Norihiko NISHIZAWA , Toshinari OH-HARA , Akira IDENO
IPC分类号： G01N21/3504 , G02F1/35 , G02F1/365 , G02B17/00 , G02F1/355
CPC分类号： G01N21/3504 , G01N21/031 , G01N21/39 , G01N2201/06113 , G01N2201/08 , G02B17/004 , G02F1/3532 , G02F1/3534 , G02F1/3551 , G02F1/365 , G02F2201/02 , G02F2203/56
摘要： Provided are a simple and convenient apparatus capable of analyzing carbon isotope 14C and a method of analyzing the carbon isotope. A carbon isotope analyzer 1 including an isotopic carbon dioxide generator 40 to generate isotopic carbon dioxide from a carbon isotope; a spectrometer 10 including an optical resonator 11 having a pair of mirrors 12, and a photodetector 15 to determine the intensity of light transmitted from the optical resonator 11; and a light generator 20 including a light source 23, a first optical fiber 21 to transmit a light beam from the light source 23, a second optical fiber 22 for wavelength conversion, the second optical fiber 22 branching from the first optical fiber 21 at a point and combining with the first optical fiber 21 at another point downstream of the branching point, and a non-linear optical crystal 25 to generate light having the absorption wavelength of the isotopic carbon dioxide on the basis of the difference in frequency between light beams transmitted through the optical crystal 25.
摘要翻译：提供了能够分析碳同位素14C的简单方便的装置和分析碳同位素的方法。碳同位素分析仪1，其包括同位素二氧化碳发生器40，用于从碳同位素产生同位素二氧化碳; 包括具有一对反射镜12的光学谐振器11的光谱仪10和用于确定从光学谐振器11传输的光的强度的光电检测器15; 以及包括光源23的光发生器20，用于透射来自光源23的光束的第一光纤21，用于波长转换的第二光纤22，第二光纤22从第一光纤21分支并且在分支点下游的另一点处与第一光纤21组合，以及非线性光学晶体25，其基于透射的光束之间的频率差产生具有同位素二氧化碳的吸收波长的光通过光学晶体25。

7. 发明申请

US20160004138A1 WAVELENGTH CONVERSION DEVICE AND PROJECTOR 有权
标题翻译：波长转换器和投影仪
公开(公告)号：US20160004138A1
公开(公告)日：2016-01-07
申请号：US14753024
申请日：2015-06-29
申请人： Coretronic Corporation
发明人： Kun-Liang Jao , Ko-Shun Chen , Chi-Hsun Wang , Chi-Tang Hsieh
IPC分类号： G02F1/35 , G03B21/20
CPC分类号： G02F1/3532 , G03B21/204 , G03B33/08
摘要： A wavelength conversion device including a main body and a transparent element is provided. The main body has at least one wavelength conversion region, a containing recess portion, and a stop portion. The containing recess portion and the stop portion encircle a closed slot. The transparent element is disposed in the closed slot to construct a light penetration region. The stop portion stops the transparent element along a radial direction of the main body. Moreover, a projector using the wavelength conversion device is also mentioned.
摘要翻译：提供了包括主体和透明元件的波长转换装置。主体具有至少一个波长转换区域，容纳凹部和停止部分。容纳凹部和止动部围绕闭合槽。透明元件设置在封闭槽中以构成透光区域。止动部沿着主体的径向停止透明元件。此外，还提及使用波长转换装置的投影仪。

8. 发明授权

US09057927B2 High-power multi-function millimeter-wave signal generation using OPO and DFG 有权
标题翻译：使用OPO和DFG的大功率多功能毫米波信号生成
公开(公告)号：US09057927B2
公开(公告)日：2015-06-16
申请号：US13828875
申请日：2013-03-14
申请人： Lockheed Martin Corporation
发明人： Yongdan Hu , Andrew Xing , Angus J. Henderson
IPC分类号： G02F1/35 , G02F1/39
CPC分类号： G02F1/3534 , G02F1/0128 , G02F1/3501 , G02F1/353 , G02F1/3532 , G02F1/3551 , G02F1/39 , G02F2001/3503 , G02F2001/3507 , G02F2203/13 , H01S3/0078 , H01S3/0092 , H01S3/0675
摘要： Apparatus and method for high-power multi-function millimeter-wavelength (THz-frequency) signal generation using OPO and DFG in a single cavity. In some embodiments, the OPO-DFG cavity includes an optical parametric oscillator (OPO) non-linear material that receives pump light IP having pump-light frequency and generates two different lower intermediate frequencies of light—an OPO-signal beam IS and a spatially/temporally overlapping OPO-idler beam II. A difference-frequency generator non-linear material then receives the two intermediate-frequency beams II and IS, and the DFG then generates a THz-frequency output signal that has a frequency equal to the difference between the two intermediate frequencies. In some embodiments, a single-piece crystal of non-linear material is used for both OPO and DFG functions. Some embodiments use a bow-tie ring having four mirrors that define the optical path: an IP-beam-entry mirror, an IP-light-extraction mirror to remove unconverted IP-beam, an II-beam-extraction mirror, and an IS-beam-extraction mirror, and a fifth ITHz-beam-extraction mirror.
摘要翻译：在单腔中使用OPO和DFG的大功率多功能毫米波（THz频）信号产生装置和方法。在一些实施例中，OPO-DFG腔包括光学参量振荡器（OPO）非线性材料，其接收具有泵浦光频率的泵浦光IP并产生两个不同的较低的中间频率的光 - OPO信号光束IS和空间上 /时间重叠的OPO惰轮II。然后，差分频率发生器非线性材料接收两个中频光束II和IS，然后DFG产生具有等于两个中间频率之间的差的频率的THz频率输出信号。在一些实施例中，非线性材料的单片晶体用于OPO和DFG功能。一些实施例使用具有限定光路的四个反射镜的蝴蝶结环：IP光束入射镜，用于去除未转换的IP光束的IP光提取镜，II光束提取镜和IS 光束提取镜和第五个ITHz光束提取镜。

9. 发明申请

US20150153234A1 Systems and methods for high-contrast, near-real-time acquisition of terahertz images 有权
标题翻译：用于高对比度，近实时采集太赫兹图像的系统和方法
公开(公告)号：US20150153234A1
公开(公告)日：2015-06-04
申请号：US14561141
申请日：2014-12-04
申请人： Microtech Instruments, Inc.
发明人： Vladimir G. Kozlov , Patrick F. Tekavec
IPC分类号： G01J5/08 , G01J5/20 , G01J3/28
CPC分类号： G01J5/0806 , G01J5/0803 , G01J5/0815 , G01J5/20 , G01J9/00 , G01J2005/0077 , G01N21/3581 , G01N21/636 , G01V8/005 , G02B5/208 , G02F1/3532 , G02F1/3534 , G02F1/3544 , G02F2001/3503 , G02F2001/3548 , G02F2203/13
摘要： A terahertz image beam is upconverted by a nonlinear optical process (e.g., sum- or difference-frequency generation with a near IR upconverting beam). The upconverted image is acquired by a near IR image detector. The terahertz image beam and upconverting beam comprise trains of picosecond pulses. The bandwidths and center wavelengths of the terahertz image beam and the upconverting beam are such that wavelength filtering can be employed to permit an upconverted image beam to reach the detector while blocking or substantially attenuating the upconverting beam.
摘要翻译：太赫兹图像波束通过非线性光学过程（例如，具有近IR上变频波束的和频或差频产生）上变频。上变换的图像由近红外图像检测器获取。太赫兹图像波束和上变频波束包括皮秒脉冲序列。太赫兹图像束和上变频束的带宽和中心波长使得可以采用波长滤波来允许上变换的图像光束到达检测器，同时阻挡或基本衰减上变频束。

10. 发明授权

US09008132B2 Multiple wavelength raman laser 有权
标题翻译：多波长拉曼激光
公开(公告)号：US09008132B2
公开(公告)日：2015-04-14
申请号：US13090585
申请日：2011-04-20
申请人： Gregory L. Keaton , Manuel J. Leonardo , Mark W. Byer , Kiyomi Monro
发明人： Gregory L. Keaton , Manuel J. Leonardo , Mark W. Byer , Kiyomi Monro
IPC分类号： H01S3/30 , H01S3/067 , G02F1/35 , H01S3/00 , H01S3/08 , H01S3/0941 , H01S3/23
CPC分类号： H01S3/302 , G02F1/3532 , G02F2001/3548 , H01S3/0092 , H01S3/0675 , H01S3/06754 , H01S3/08086 , H01S3/094003 , H01S3/0941 , H01S3/09415 , H01S3/1086 , H01S3/109 , H01S3/2316
摘要： A pulsed laser system may include a Raman fiber that is configured to act as multiple wavelength Raman laser. The fiber is configured to receive a pulsed input beam from an input source and convert the input beam to an output beam having narrow band outputs at first and second frequencies v1 and v2.
摘要翻译：脉冲激光系统可以包括被配置为用作多波长拉曼激光器的拉曼光纤。光纤配置成从输入源接收脉冲输入光束，并将输入光束转换成具有第一和第二频率v1和v2的窄带输出的输出光束。

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