公开(公告)号：US11209593B2

公开(公告)日：2021-12-28

申请号：US16580298

申请日：2019-09-24

Applicant: University of Southampton

Inventor： Xia Chen ,  Milan Milosevic ,  Graham Trevor Reed ,  David John Thomson

IPC: G02B6/34 ,  G02B6/134 ,  C23C14/48 ,  G01M11/00 ,  G02B6/12

Abstract: The disclosure provides a method of forming an erasable optical coupler in a photonic device comprising a conventional optical waveguide formed in a crystalline wafer. The method comprises selectively implanting ions in a localized region of the wafer material adjacent to the conventional waveguide of the photonic device, to cause modification of the crystal lattice structure of, and a change in refractive index in, the ion implanted region of the wafer material to thereby form an ion implanted waveguide optically coupled to the adjacent conventional waveguide to couple light out therefrom, or in thereto. The crystalline wafer material and ion implanted waveguide are such that the crystal lattice structure or composition can be modified to adjust or remove the optical coupling with the conventional waveguide by further modification of the refractive index in the ion implanted region.

公开(公告)号：US20210360924A1

公开(公告)日：2021-11-25

申请号：US16625580

申请日：2018-06-25

Applicant: University of Southampton

Inventor： Lindy Holden-Dye ,  Vincent O'Connor ,  Peter Urwin

IPC: A01N43/90 ,  A01N43/38 ,  A01P5/00

Abstract: A method of inhibiting or preventing damage to plants or seeds by a PPN (Plant Parasitic Nematode). The method comprises applying an effective amount of a biogenic amine signalling pathway inhibitor to a plant or a seed. The biogenic amine signalling pathway inhibitor may be a serotonin signalling pathway inhibitor. In particular, the biogenic amine signalling pathway inhibitor may be reserpine or an active analogue or derivative thereof.

公开(公告)号：US20210311250A1

公开(公告)日：2021-10-07

申请号：US17266685

申请日：2019-07-31

Applicant: University of Southampton

Inventor： Gregory Teofil JASION ,  Francesco POLETTI

IPC: G02B6/032 ,  G02B6/02 ,  C03B37/027

Abstract: A hollow core optical fibre comprises a tubular jacket; a cladding comprising a plurality of primary capillaries spaced apart from one another in a ring and each bonded to an inner surface of the jacket at a peripheral location around the circumference of the jacket; and a hollow core formed by a central void within the ring of primary capillaries; wherein the cladding further comprises, within each primary capillary, two secondary capillaries and no more, the two secondary capillaries spaced apart from one another and each bonded to an inner surface of the primary capillary at an azimuthal location around the circumference of the primary capillary which is displaced from the peripheral location of the primary capillary.

公开(公告)号：US20210155936A1

公开(公告)日：2021-05-27

申请号：US17159881

申请日：2021-01-27

Applicant: University of Southampton

Inventor： Igor VORECHOVSKY ,  Jana KRALOVICOVA

IPC: C12N15/113 ,  C12Q1/6883 ,  C12Q1/6886

Abstract: Disclosed herein include compositions and methods of modulating protein expression that utilizes an activator or a repressor of a non-sense mediated RNA decay switch exon (NSE). In some embodiments, also included herein are compositions and methods of modulating protein expression that uses an agent that targets a transposed element.

公开(公告)号：US20210140755A1

公开(公告)日：2021-05-13

申请号：US16676578

申请日：2019-11-07

Applicant: University of Southampton ,  Nanyang Technological University

Inventor： Nikolay Ivanovich ZHELUDEV ,  Guanghui YUAN

IPC: G01B9/02

Abstract: A method of determining a displacement comprises: generating an interferometric superoscillatory field from coherent electromagnetic radiation, the interferometric superoscillatory field comprising an interference pattern between a reference field and a superoscillatory field; detecting with a detector a first set of intensity distributions of the interferometric superoscillatory field, each intensity distribution from a different polarisation state of the electromagnetic radiation; detecting with the detector a second set of intensity distributions of the interferometric superoscillatory field, each intensity distribution from the same polarisation states of the electromagnetic radiation as the first set of intensity distributions; extracting a first local wavevector distribution from the first set of intensity distributions and a second local wavevector distribution from the second set of intensity distributions; comparing the first local wavevector distribution and the second local wavevector distribution to identify any change in position of one or more features in the local wavevector distributions; and ascertaining that a lateral displacement has occurred between the interferometric superoscillatory field and the detector if a change in position is identified.

公开(公告)号：US10969547B2

公开(公告)日：2021-04-06

申请号：US16619706

申请日：2018-06-07

Applicant: University of Southampton

Inventor： Frederic Yannick Gardes ,  Katarzyna Monika Grabska

IPC: G02B6/12 ,  G02B6/122 ,  G02B6/134 ,  G02B6/136

Abstract: An optoelectronic device and method of manufacturing the same. The device includes: a layer disposed above a substrate, the layer having a first cavity therein, which cavity is at least partially defined by an inclined interface between the cavity and an insulating liner, the interface being disposed at an angle relative to the substrate of greater than 0° and less than or equal to 90°; and a regrown semiconductor material, providing or forming a part of a waveguide, the regrown semiconductor material being at least partly disposed in the first cavity and including an inclined interface between the regrown semiconductor material and the insulating liner, the interface being disposed at an angle relative to the substrate of greater than 0° and less than or equal to 90°.

公开(公告)号：US20210100089A1

公开(公告)日：2021-04-01

申请号：US17054248

申请日：2019-05-10

Applicant: University of Southampton

Inventor： Alexander Joey Nikolaos Daykin-Iliopoulos ,  Stephen Bernard Gabriel ,  Igor Golosnoy

IPC: H05H1/24 ,  H05H1/46 ,  H01J1/30

Abstract: A hollow cathode apparatus includes an outer tubular dielectric barrier circumferentially surrounding an outer tubular surface of the cathode tube, the outer tubular dielectric barrier being composed of a barrier material which is electrically non-conductive. Also disclosed is a system comprising the hollow cathode apparatus, an anode which is spaced from the output end of the tubular cathode, and electrical circuitry connected between the cathode tube and the anode for connection to a source of electrical power for providing an electrical potential between the cathode and anode to cause an electric current to pass from the emitter into the input gas to form a plasma which is then output through the output end of the cathode tube to form a plasma plume. The electrical circuitry comprises: a first power supply for connecting the cathode and the cathode electrode to a first source of DC power in an ignition power mode, wherein the first power supply comprises a current control device which is adapted to control the current between the cathode and the cathode electrode, wherein the current control device is arranged to function as an anti-surge current stabiliser; and a second power supply for connecting the anode and the cathode to a second source of DC power in a steady state power mode.

公开(公告)号：US20210033430A1

公开(公告)日：2021-02-04

申请号：US16996373

申请日：2020-08-18

Applicant: University of Southampton

Inventor： Andrei Donko ,  Ali Masoudi ,  Martynas Beresna ,  Gilberto Brambilla

IPC: G01D5/353 ,  G01H9/00

Abstract: A sensor system includes a radiation source, an optical fiber, and a detection device. The radiation source is arranged to emit pulses of radiation. The optical fiber comprises a first end and a core. The first end is arranged to receive pulses of radiation output from the radiation source such that, in use, the pulses of radiation are coupled into the fiber. The core is arranged to support propagation of the pulses of radiation along the fiber. The core includes a plurality of reflectors each comprising a portion of the core having a refractive index which is different to the refractive index of adjacent regions of the core. Reflections of a pulse of radiation from adjacent reflectors output at the first end of the fiber are resolvable from each other in the time domain. The detection device is arranged to measure radiation output from the first end of the fiber and resolve radiation reflected at different locations in the core of the fiber.

公开(公告)号：US10805720B2

公开(公告)日：2020-10-13

申请号：US16435332

申请日：2019-06-07

Applicant: Huawei Technologies Co., Ltd. ,  University of Southampton

Inventor： Simone Fontana ,  Yue Lang ,  Filippo Fazi ,  Mincheol Shin ,  Ferdinando Oliveri

IPC: H04R1/40 ,  H04R5/02 ,  H04R3/12

Abstract: The disclosure relates to an audio signal processing apparatus for processing an input audio signal, comprising a filter unit comprising a plurality of filters, each filter configured to filter the input audio signal to obtain a plurality of filtered audio signals, each filter designed according to an extended mode matching beamforming applied to a surface of a half revolution, the surface partially characterizing a loudspeaker enclosure shape, a plurality of scaling units, each scaling unit configured to scale the plurality of filtered audio signals using a plurality of gain coefficients to obtain a plurality of scaled filtered audio signals, and a plurality of adders, each adder configured to combine the plurality of scaled filtered audio signals, thereby providing an output audio signal for producing a sound field having a beam directivity pattern defined by the plurality of gain coefficients.

公开(公告)号：US20200156987A1

公开(公告)日：2020-05-21

申请号：US16628423

申请日：2018-07-04

Applicant: University of Southampton

Inventor： Natalie WHEELER ,  Peter SHARDLOW ,  Francesco POLETTI

IPC: C03B37/012 ,  C03B23/207 ,  G02B6/02

Abstract: A method of making an optical fibre preform comprising providing a hollow outer tube of glass, providing a hollow primary capillary tube of glass with an outer diameter smaller than an inner diameter of the outer tube, positioning the primary capillary tube inside the outer tube such that an outer surface of the primary capillary tube lies against an inner surface of the outer tube along a contact line parallel to the longitudinal axes of the primary capillary tube and the outer tube, and bonding the primary capillary tube into its position inside the outer tube by directing a laser beam onto a surface of the outer tube or the primary capillary at one or more locations aligned with the contact line.