公开(公告)号：US20230358684A1

公开(公告)日：2023-11-09

申请号：US18026181

申请日：2021-08-03

Applicant: Thermo Fisher Scientific (Ecublens) SAR

Inventor： Fabio Demarco

IPC: G01N21/71 ,  G01J3/443

CPC classification number: G01N21/718 ,  G01J3/443 ,  G01N2201/06113

Abstract: A method for compositional analysis includes providing a sample having a surface and determining with a controller a plurality of equidistant positions along an oscillatory path along the surface. The oscillatory path is sinusoid in at least one orthogonal dimension within a plane approximately parallel to the surface. The method further includes, for each equidistant position of the plurality of equidistant position, moving an ablation point along the oscillatory path to the each equidistant position, pulsing an energy source to provide an electromagnetic energy beam to ablate material at the ablation point, and collecting an emission spectrum with a spectrographic instrument in response to pulsing the energy source. The method also includes analyzing the emission spectrum to determine a composition at the surface.

公开(公告)号：US11796459B1

公开(公告)日：2023-10-24

申请号：US18329585

申请日：2023-06-06

Applicant: Xinjiang Technical Institute of Physics and Chemistry, CAS

Inventor： Linjun Li ,  Shilie Pan ,  Yu Zhou ,  Xiaoming Duan ,  Qianqian Hao ,  Yingjie Shen ,  Xin He ,  Hongsheng Shi ,  Zheng Cui

IPC: G01N21/3504 ,  G01N21/45

CPC classification number: G01N21/3504 ,  G01N21/45 ,  G01N2021/451 ,  G01N2201/0631 ,  G01N2201/0636 ,  G01N2201/06113

Abstract: A method for measuring multiple parameters of mixed gases based on broadband infrared light source is provided, including: filtering a broadband infrared laser, and forming a laser beam including three narrow-linewidth wavelengths; dividing the laser beam into a first sub-laser beam and a second sub-laser beam; focusing and transmitting the first sub-laser beam to a gas sample cell; focusing and transmitting the first sub-laser beam to a first reflector; reflecting and transmitting the first sub-laser beam; reflecting and transmitting the second sub-laser beam to the second beam splitter; combing the first sub-laser beam transmitted by the second beam splitter and the second sub-laser beam reflected by the second beam splitter, measuring the multiple parameters; combining and transmitting the second sub-laser beam transmitted by the second beam splitter and the first sub-laser beam reflected by the second beam splitter to a spectrometer for measuring concentrations the mixed gases.

公开(公告)号：US20230333015A1

公开(公告)日：2023-10-19

申请号：US18188839

申请日：2023-03-23

Applicant: University of Virginia Patent Foundation

Inventor： Brian M. Foley ,  John T. Gaskins ,  Patrick E. Hopkins

IPC: G01N21/55 ,  G01N21/17 ,  G01B11/06

CPC classification number: G01N21/55 ,  G01N21/17 ,  G01B11/0633 ,  G01N21/1717 ,  G01N2021/1731 ,  G01N2201/06113

Abstract: An apparatus related method for measuring a property of a target material. The system may include a pump device that generates a pump beam. A modulation device may receive the pump beam and generate a modulated pump beam by modulating an intensity amplitude of the pump beam, which may be directed to the target material. A probe device may generate a probe beam, which is directed to the target material. A part of the probe beam may be reflected off of the target material, and has similar frequency characteristic as the modulated pump beam. A detection device may detect the reflected probe beam and produce a signal. An analyzing device may receive the signal and calculate the target material property by comparing the modulated frequency characteristics of the signal to those of the pump beam. At least one of the pump and the probe beams may be infrared light.

公开(公告)号：US20230333009A1

公开(公告)日：2023-10-19

申请号：US18135692

申请日：2023-04-17

Applicant: GenXComm, inc.

Inventor： Brian Mattis ,  Taran Huffman

IPC: G01N21/31 ,  B01L3/00 ,  G02B6/125

CPC classification number: G01N21/31 ,  B01L3/502715 ,  G02B6/125 ,  B01L2300/0654 ,  B01L2300/168 ,  G01N2201/06113

Abstract: A photonic circuit and electronic device incorporating the same including a waveguide defining different regions having different widths and cladding thicknesses. The width and cladding thickness in a particular region are configured to loosely confine light in a first set of conditions and to tightly/highly confine light in a second set of conditions. The first and second set of conditions can correspond to the waveguide being positioned proximate to different materials having different indices of refraction.

公开(公告)号：US11777272B2

公开(公告)日：2023-10-03

申请号：US17020913

申请日：2020-09-15

Applicant: Booz Allen Hamilton Inc.

Inventor： James A Davis

IPC: H01S3/10 ,  H01S3/067 ,  H01S3/13 ,  H01S3/00 ,  H01S3/223 ,  H01S3/225 ,  H01S3/0943 ,  H01S3/094 ,  G02F1/01 ,  G01N21/59 ,  G02B27/28

CPC classification number: H01S3/10 ,  H01S3/0085 ,  H01S3/06716 ,  H01S3/06754 ,  H01S3/1003 ,  H01S3/10015 ,  H01S3/1301 ,  H01S3/1305 ,  H01S3/1307 ,  G01N21/59 ,  G01N2201/06113 ,  G02B27/283 ,  G02F1/0136 ,  H01S3/0943 ,  H01S3/094003 ,  H01S3/223 ,  H01S3/225

Abstract: Systems and methods include a radiation source configured to generate a first waveform, a first separator configured to separate the first waveform into linearly polarized second and third waveforms, a first modulator configured to modulate at least one of a phase and a polarization of the second waveform to generate a fourth waveform, a second modulator configured to modulate at least one of a phase and a polarization of the third waveform to generate a fifth waveform, a first combiner configured to combine the fourth and fifth waveforms to generate a sixth waveform, an amplifier configured to amplify the sixth waveform to generate a seventh waveform, a second separator configured to separate the seventh waveform into a plurality of amplified waveforms, and beam directing optics configured to direct the plurality of amplified waveforms to form an output waveform at a target location.

公开(公告)号：US20230304934A1

公开(公告)日：2023-09-28

申请号：US18125519

申请日：2023-03-23

Applicant: The University of North Carolina at Chapel Hill ,  Mizar Imaging, LLC

Inventor： Paul Samuel Maddox ,  Joel Carter Smith ,  Bryan William Heck ,  Christopher T. Baumann

IPC: G01N21/64 ,  G02B21/16 ,  G02B21/06 ,  G02B17/00

CPC classification number: G01N21/6458 ,  G02B21/16 ,  G02B21/06 ,  G02B17/006 ,  G01N2021/6463 ,  G01N2201/06113 ,  G01N2021/6484 ,  G02B27/60

Abstract: Methods and systems for imaging a sample using fluorescence microscopy. High resolution lenses can be used for light sheet microscopy by tilting the excitation beam relative to the imaging optical axis. The excitation beam can be tilted using mirrors, instead of lenses, to generate the tilted illumination sheet. In some examples, a light path starts at a top downward-facing cone of light as it emerges from an optic fiber; a first off-axis parabolic mirror collimates in the x-axis, while a second off-axis parabolic mirror collimates in the y-axis, followed by the photomask to create four primary light sheets, which are then focused by a third off-axis parabolic mirror. As the four primary light sheets converge they create an interference pattern at an objective lens.

公开(公告)号：US20230296526A1

公开(公告)日：2023-09-21

申请号：US18123679

申请日：2023-03-20

Applicant: The United States of America, as represented by the Secretary of the Navy

Inventor： Kin Chiu Ng ,  Subrata Sanyal

IPC: G01N21/65 ,  G01N21/64

CPC classification number: G01N21/65 ,  G01N21/6486 ,  G01N2201/06113 ,  G01N2201/0221

Abstract: Provided is a portable biosensor that includes a sample filter cartridge, a filter collector, an optical sphere, an electromagnetic radiation emitter, a photo-detector, a processor, a signal display, a vacuum pump, and a power supply. The sample filter cartridge selectively removes small molecules to minimize spectral interference in the detection signal. The sample is concentrated onto the filter collector and subjected to illumination by the electromagnetic radiation emitter, producing Raman-scattering. The optical sphere collects and distributes the Raman-scattering shifts, which then pass through a spectral filter to produce spectral filtered scattering, which is then reflected by the concave holographic flat-field grating onto the photo-detector. The data is displayed graphically to provide the Raman-scattering shift data. The data is compared with a database for sample identification. The device is contained within a housing that is small enough to be easily transported for field use.

公开(公告)号：US20230296508A1

公开(公告)日：2023-09-21

申请号：US18184019

申请日：2023-03-15

Applicant: KineoLabs

Inventor： Walid A. Atia ,  Dale C. Flanders

IPC: G01N21/39 ,  G01B9/02091

CPC classification number: G01N21/39 ,  G01B9/02091 ,  G01N2201/0633 ,  G01N2201/105 ,  G01N2201/06113

Abstract: A line field optical coherence tomography (OCT) system and an absorption spectrometer system employing a tunable or swept laser architecture. The laser is a cat's-eye configuration with a preferably transmissive tilt tuned interference thin film filter.

公开(公告)号：US20230296248A1

公开(公告)日：2023-09-21

申请号：US17695908

申请日：2022-03-16

Applicant: Valmet AB

Inventor： Mikhail Y. Shekhter ,  Kristen K. Bandle ,  Robert H. Miller, III

IPC: F23N5/00 ,  D06F58/26 ,  G01N21/39 ,  D06F58/50

CPC classification number: F23N5/003 ,  D06F58/263 ,  G01N21/39 ,  D06F58/50 ,  F23N2241/08 ,  F23N2900/05005 ,  G01N2201/06113

Abstract: A mounting system for a laser detection sensor in a ductwork for the detection of unburnt fuel is provided. The mounting system includes a laser transmitter mount configured to provide adjustment of a laser transmitter and a laser receiver mount configured to provide adjustment of a laser receiver. The mounting system also includes a laser path extending between the laser transmitter and the laser receiver that includes an entrance port in the ductwork and an exit port in the ductwork. The mounting system also includes a flexible joint in the mounting system, where the flexible joint is configured to isolate at least one of the laser transmitter and the laser receiver from movement of the ductwork.

公开(公告)号：US11762180B2

公开(公告)日：2023-09-19

申请号：US16622542

申请日：2018-06-15

Applicant: UNIVERSITY COURT OF THE UNIVERSITY OF ST ANDREWS

Inventor： Kishan Dholakia

IPC: G02B21/00 ,  G01N21/64

CPC classification number: G02B21/0032 ,  G01N21/6458 ,  G01N21/6486 ,  G02B21/0076 ,  G01N2201/0633 ,  G01N2201/0634 ,  G01N2201/06113 ,  G01N2201/08 ,  G02B2207/114

Abstract: A light sheet imaging system, such as a light sheet microscope, comprises an illumination arrangement for generating a light sheet for three-photon excitation of a fluorescent sample, and a fluorescence collection arrangement for collecting fluorescence generated in the sample as a result of three-photon excitation by the light sheet. The light sheet may be a non-diffractive, propagation-invariant light sheet. The light sheet may be formed from and/or comprise a Bessel beam. A method of light sheet imaging comprises using a light sheet for three-photon excitation of a fluorescent sample, and collecting fluorescence generated in the sample as a result of three-photon excitation of the sample by the light sheet. Such a method may be used for light sheet microscopy.