公开(公告)号：US20180156991A1

公开(公告)日：2018-06-07

申请号：US15831565

申请日：2017-12-05

Applicant: IMEC VZW ,  Samsung Electronics Co. Ltd.

Inventor： Tom Claes ,  Rita Van Hoof ,  Gillis Winderickx

IPC: G02B6/42 ,  G02B6/122 ,  G02B6/13 ,  G01J3/28

CPC classification number: G02B6/4214 ,  G01J3/021 ,  G01J3/0218 ,  G01J3/0259 ,  G01J3/2803 ,  G01J3/2823 ,  G01J2003/2813 ,  G02B6/12007 ,  G02B6/1228 ,  G02B6/13 ,  G02B6/425 ,  G02B2006/12147

Abstract: An example embodiment relates to a photonic integrated circuit device and a method for its manufacture. An example device includes a planar detector having at least one photodetector. The device may further include a waveguide layer arranged substantially parallel to the planar detector, the waveguide layer including a first integrated waveguide for guiding a first light signal. A cavity may be formed in the waveguide layer in a region spaced away from the edges of the waveguide layer such as to terminate the first integrated waveguide in that region. A first reflective surface may be provided in the cavity to reflect the first light signal guided by the first integrated waveguide toward a first photodetector of the planar detector.

公开(公告)号：US20180106671A1

公开(公告)日：2018-04-19

申请号：US15569879

申请日：2016-04-28

Applicant: IMEC VZW ,  Samsung Electronics Co. Ltd.

Inventor： Tom Claes

IPC: G01J3/02 ,  G01J3/44 ,  G01B9/02

CPC classification number: G01J3/0218 ,  G01B9/02015 ,  G01B9/02083 ,  G01J3/021 ,  G01J3/0259 ,  G01J3/44 ,  G01J3/4531 ,  G02B6/29346 ,  G02B6/29349

Abstract: An example embodiment may include an interferometer. The interferometer may include a multimode waveguide with an input waveguide optically coupled to a first side of the multimode waveguide, for feeding a light signal to the multimode waveguide. The interferometer may also include a first waveguide at one end optically coupled to a second side of the multimode waveguide, and at the other end terminated by a first waveguide mirror. The interferometer may also include a second waveguide at one end optically coupled to the second side of the multimode waveguide and at the other end terminated by a second waveguide mirror. The multimode waveguide may be adapted to distribute the light signal towards the first and second waveguide mirror via the first waveguide and via the second waveguide.

公开(公告)号：US20180087963A1

公开(公告)日：2018-03-29

申请号：US15714454

申请日：2017-09-25

Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.

Inventor： Heinrich Grueger ,  Jens Knobbe ,  Tino Puegner

IPC: G01J3/18 ,  G01J3/02 ,  G01J3/04

CPC classification number: G01J3/1804 ,  G01J3/0202 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0229 ,  G01J3/0256 ,  G01J3/04 ,  G01J3/06 ,  G01J2003/1885

Abstract: An optical arrangement for a spectral analysis system, a method for producing an optical arrangement for a spectral analysis system and a spectral analysis system are disclosed. In an embodiment the optical arrangement includes a carrier substrate having a placement area for a frame and a base area, and a diffraction grating movably arranged in the frame, wherein the frame is arranged on the placement area in an inclined placement position with respect to the base area so that the diffraction grating, arranged in a base position, is inclined with respect to the base area.

公开(公告)号：US09921102B2

公开(公告)日：2018-03-20

申请号：US15104905

申请日：2015-02-10

Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Tianxu Zhang ,  Xiaobing Dai ,  Xiangyan Liu ,  Jindong Fei ,  Li Liu ,  Hongtao Yu ,  Shoukui Yao

IPC: G01J3/02 ,  H04N5/33 ,  G01J3/45 ,  G01H9/00 ,  G01J3/28 ,  H04N5/225 ,  H04N5/232

CPC classification number: G01J3/0202 ,  G01H9/004 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0218 ,  G01J3/0264 ,  G01J3/2823 ,  G01J3/45 ,  G01J2003/2836 ,  H04N5/2251 ,  H04N5/2252 ,  H04N5/2254 ,  H04N5/23241 ,  H04N5/33

Abstract: A moving platform borne infrared image-spectrum associated detection system includes an optical hood, a broadband optical system, a two-dimensional servo system, an infrared optical fiber, a Fourier interference spectrum module, an image-spectrum associated detection processing module, a power supply module, and a display module. Incident light enters from the optical hood to the broadband optical system, and is split by a spectroscope. Transmitted light is focused by a long-wave imaging lens group on an infrared detector for imaging. Reflected light is focused by a broadband spectrum lens group to an optical fiber coupler, enters the Fourier interference spectrum module through the infrared optical fiber to form an interference pattern, and undergoes Fourier transform to obtain spectral data.

公开(公告)号：US09915563B2

公开(公告)日：2018-03-13

申请号：US15046835

申请日：2016-02-18

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

Inventor： Michael K. Yetzbacher ,  Christopher W. Miller ,  Michael J. Deprenger ,  Andrew J. Boudreau

IPC: G01J3/26 ,  G01N21/45 ,  G01N21/41 ,  G01J3/02 ,  G01J3/45

CPC classification number: G01J3/26 ,  G01J3/021 ,  G01J3/45 ,  G01N21/41 ,  G01N21/45

Abstract: A method of optical spectroscopy and a device for use in optical spectroscopy. The device includes a substrate, and a plurality of etalon cavities affixed to or coupled to the substrate. A signal is received from a Fabry-Perot interferometer. The signal is sampled using the device according to a generalized Nyquist-Shannon sampling criterion. The signal is sampled using the device according to a phase differential criterion for wave number resolution. An input spectrum for the signal is reconstructed based on the signal sampled according to the generalized Nyquist-Shannon sampling criterion and the signal sampled according to the phase differential criterion for wave number resolution.

公开(公告)号：US09915562B2

公开(公告)日：2018-03-13

申请号：US15235401

申请日：2016-08-12

Applicant: ABB, Inc.

Inventor： John Brian Leen ,  Nathan E. Bramall

IPC: G01J5/02 ,  G01J3/02 ,  G01J3/42 ,  G01N21/3504

CPC classification number: G01J3/021 ,  G01J3/0208 ,  G01J3/0243 ,  G01J3/0286 ,  G01J3/0291 ,  G01J3/42 ,  G01N21/3504 ,  G01N21/39 ,  G01N2021/391 ,  G01N2021/399 ,  G01N2201/06113

Abstract: A cavity-enhanced absorption spectroscopy instrument has an optical cavity with two or more cavity mirrors, one mirror of which having a hole or other aperture for injecting a light beam, and the same or another mirror of which being partially transmissive to allow exit of light to a detector. A spherical-spherical configuration with at least one astigmatic mirror or a spherical-cylindrical configuration where the spherical mirror could also be astigmatic prevents a reentrant condition wherein the injected beam would prematurely exit the cavity through the aperture. This combination substantially increases the number of passes of the injected beam through a sample volume for sensitive detection of chemical species even in less than ideal conditions including low power laser or LED sources, poor mirror reflectivity or detector noise at the wavelengths of interest, or cavity alignment issues such as vibration or temperature and pressure changes.

公开(公告)号：US20180045566A1

公开(公告)日：2018-02-15

申请号：US15723409

申请日：2017-10-03

Applicant: Gregory Alan Fish ,  Jonathan Edgar Roth ,  Brandon Buckley

Inventor： Gregory Alan Fish ,  Jonathan Edgar Roth ,  Brandon Buckley

IPC: G01J3/18 ,  G02B6/34 ,  G01J3/02 ,  G02F1/025 ,  G02B6/42 ,  G02B6/12 ,  H01S5/40 ,  G01J3/10 ,  H01S5/026 ,  H01S5/02

CPC classification number: G01J3/1895 ,  G01J3/0205 ,  G01J3/021 ,  G01J3/0259 ,  G01J3/108 ,  G01J2003/102 ,  G01J2003/104 ,  G02B6/12004 ,  G02B6/34 ,  G02B6/4214 ,  G02F1/025 ,  H01S5/021 ,  H01S5/026 ,  H01S5/4075 ,  H01S5/4087

Abstract: Described herein are optical sensing devices for photonic integrated circuits (PICs). A PIC may comprise a plurality of waveguides formed in a silicon on insulator (SOI) substrate, and a plurality of heterogeneous lasers, each laser formed from a silicon material of the SOI substrate and to emit an output wavelength comprising an infrared wavelength. Each of these lasers may comprise a resonant cavity included in one of the plurality of waveguides, and a gain material comprising a non-silicon material and adiabatically coupled to the respective waveguide. A light directing element may direct outputs of the plurality of heterogeneous lasers from the PIC towards an object, and one or more detectors may detect light from the plurality of heterogeneous lasers reflected from or transmitted through the object.

公开(公告)号：US20180024040A1

公开(公告)日：2018-01-25

申请号：US15659610

申请日：2017-07-25

Applicant: CYTEK BIOSCIENCES, INC.

Inventor： Ming Yan ,  Yung-Chieh Hsieh ,  David Vrane ,  Eric Chase

IPC: G01N15/14 ,  G01J1/08 ,  G01N21/47

CPC classification number: G01N15/1436 ,  G01J1/08 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0218 ,  G01J3/0256 ,  G01J3/0291 ,  G01J3/36 ,  G01J2003/1213 ,  G01N15/1434 ,  G01N15/1459 ,  G01N21/47 ,  G01N2015/1006 ,  G01N2015/145

Abstract: In one embodiment, a flow cytometer is disclosed having a compact light detection module. The compact light detection module includes an image array with a transparent block, a plurality of micro-mirrors in a row coupled to a first side of the transparent block, and a plurality of filters in a row coupled to a second side of the transparent block opposite the first side. Each of the plurality of filters reflects light to one of the plurality of micro-mirrors and passes light of a differing wavelength range and each of the plurality of micro-mirrors reflects light to one of the plurality of filters, such that incident light into the image array zigzags back and forth between consecutive filters of the plurality of filters and consecutive micro-mirrors of the plurality of micro-mirrors. A radius of curvature of each of the plurality of micro-mirrors images the fiber aperture onto the odd filters and collimates the light beam on the even filters.

公开(公告)号：US09851247B2

公开(公告)日：2017-12-26

申请号：US15042356

申请日：2016-02-12

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Katsumi Shibayama ,  Takafumi Yokino

IPC: G01J3/28 ,  G01J3/02 ,  G01J3/18 ,  G01J3/36

CPC classification number: G01J3/021 ,  G01J3/02 ,  G01J3/0202 ,  G01J3/0256 ,  G01J3/0262 ,  G01J3/0291 ,  G01J3/18 ,  G01J3/36

Abstract: A spectroscopic module 1 is provided with a spectroscopic unit 8 and a photodetector 9 in addition to a spectroscopic unit 7 and a photodetector 4 and thus can enhance its detection sensitivity for light in a wide wavelength range or different wavelength regions of light. A light-transmitting hole 4b is disposed between light detecting portions 4a, 9a, while a reflection unit 6 is provided so as to oppose a region R in a light-absorbing substrate 2, whereby the size can be kept from becoming larger. Ambient light La is absorbed by the region R in the substrate 2. Any part of the light La transmitted through the region R in the substrate 2 is reflected to the region R by the unit 6 formed so as to oppose the region R, whereby stray light can be inhibited from being caused by the incidence of the light La.

公开(公告)号：US09846079B2

公开(公告)日：2017-12-19

申请号：US15190727

申请日：2016-06-23

Applicant: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration

Inventor： Mark A. Stephen ,  Molly E. Fahey ,  Michael A. Krainak

IPC: G01B9/02 ,  G01J3/45 ,  G02B5/28 ,  G02B5/122 ,  G01J3/26

CPC classification number: G01J3/45 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/26 ,  G01J3/2803 ,  G02B5/122 ,  G02B5/284

Abstract: Systems, methods, and devices may provide an optical scheme that achieves simultaneous wavelength channels and maintains the resolution and luminosity of an etalon. Various embodiments may provide a method to optically recirculate the light reflected from the etalon back through the same etalon at new angles. Various embodiments create an etalon spectrometer based on angular dispersion without moving parts and without losing the light that is not initially transmitted. Various embodiments may provide a spectrally-resolved receiver and/or transmitter. Various embodiments may provide a system including a retro-reflector, a detector or transmitter array, and an etalon disposed between the retro-reflector and the detector or transmitter array, wherein the retro-reflector is configured to redirect light reflected by the etalon back to the etalon at a different angle of incidence than an original angle of incidence on the etalon of the light reflected by the etalon.