公开(公告)号：US20210331249A1

公开(公告)日：2021-10-28

申请号：US17366442

申请日：2021-07-02

Applicant: University of Central Florida Research Foundation, Inc.

Inventor： Aravinda Kar ,  Ranganathan Kumar ,  Eduardo Castillo Orozco

IPC: B22F12/00 ,  B05B5/025 ,  H01L31/0352 ,  B33Y10/00 ,  B33Y70/00 ,  B22F1/00 ,  B29C64/00 ,  H01L31/0745 ,  H01L31/06 ,  H01L31/0312 ,  H01L31/075 ,  B33Y30/00 ,  H01L31/18 ,  C03B19/01 ,  C03B19/06 ,  B05D3/06 ,  B05D1/04 ,  B22F10/10

Abstract: A laser-assisted microfluidics manufacturing process has been developed for the fabrication of additively manufactured structures. Roll-to-roll manufacturing is enhanced by the use of a laser-assisted electrospray printhead positioned above the flexible substrate. The laser electrospray printhead sprays microdroplets containing nanoparticles onto the substrate to form both thin-film and structural layers. As the substrate moves, the nanoparticles are sintered using a laser beam directed by the laser electrospray printhead onto the substrate.

公开(公告)号：US10788373B2

公开(公告)日：2020-09-29

申请号：US16424742

申请日：2019-05-29

Applicant: UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC.

Inventor： Aravinda Kar ,  Jeffrey Jennings ,  Rajan Vaidyanathan

IPC: G01J5/26 ,  G01J5/24 ,  G01J5/00 ,  G01J5/20 ,  G01J5/02 ,  A61B5/05

Abstract: An imaging device may include an RF source configured to irradiate an object with RF radiation, and an array of RE antenna elements. Each RF antenna element may include a loop bolometer configured to receive the RF radiation after interaction with the object. The imaging device may include a processor configured to generate an image based upon respective outputs from the array of RF antenna elements, and a display coupled to the processor and configured to display the image of the object.

公开(公告)号：US10358723B2

公开(公告)日：2019-07-23

申请号：US13969055

申请日：2013-08-16

Applicant: University of Central Florida Research Foundation, Inc.

Inventor： Rajan Vaidyanathan ,  Aravinda Kar

IPC: C23C16/56 ,  C23C16/48 ,  C23C16/54 ,  A61L27/30 ,  A61L31/08 ,  C23C10/28 ,  A61N1/375 ,  A61N1/08

Abstract: A method of forming surface modified substrates includes providing a substrate of material (M) having a bulk portion and an outer surface integrated with the bulk portion. A coating is deposited including metal organic molecules including at least one metal X or particles of metal X onto the outer surface. The coating is laser irradiated with a laser beam, where atoms of metal X diffuse into the outer surface to form a modified surface layer including both M and atoms of metal X on the bulk portion. The modified surface layer has a thickness of at least 1 nm, and a 25° C. electrical conductivity that is at least 2.5% above or 2.5% below a 25° C. electrical conductivity in the bulk portion.

公开(公告)号：US09601902B2

公开(公告)日：2017-03-21

申请号：US14307057

申请日：2014-06-17

Applicant: University of Central Florida Research Foundation, Inc.

Inventor： Aravinda Kar ,  Tariq Manzur

IPC: H01S5/00 ,  H01S5/026 ,  B82Y20/00 ,  G01J1/42 ,  H01L21/223 ,  H01L21/268 ,  H01L27/146 ,  H01S5/183 ,  H01S5/343 ,  H01S5/42

CPC classification number: H01S5/0264 ,  B82Y20/00 ,  G01J1/42 ,  H01L21/223 ,  H01L21/2233 ,  H01L21/268 ,  H01L27/14643 ,  H01S5/0028 ,  H01S5/0262 ,  H01S5/183 ,  H01S5/34306 ,  H01S5/426

Abstract: A method of optical signal amplification. Incident photons are received at a photodetector including a doped semiconductor biased by a power source. The photons generate a change in a reflective property, refractive index, or electrical conductivity of the doped semiconductor. For the change in reflective property or refractive index, a first optical signal is reflected off the photodetector to provide a reflected beam, or the photodetector includes a reverse biased semiconductor junction including the doped semiconductor within a laser resonator including a laser medium, wherein a second optical signal is emitted. For the change in electrical conductivity the photodetector includes a reversed biased semiconductor junction that is within an electrical circuit along with an electrically driven light emitting device, where a drive current provided to the light emitting device increases as the electrical conductivity of the photodetector decreases, and the light emitting device emits a third optical signal.

公开(公告)号：US11692270B2

公开(公告)日：2023-07-04

申请号：US16431519

申请日：2019-06-04

Applicant: University of Central Florida Research Foundation, Inc.

Inventor： Rajan Vaidyanathan ,  Aravinda Kar

IPC: C23C16/48 ,  C23C16/54 ,  C23C16/56 ,  A61L27/30 ,  A61L31/08 ,  C23C10/28 ,  A61N1/08

CPC classification number: C23C16/56 ,  A61L27/306 ,  A61L31/088 ,  C23C10/28 ,  C23C16/483 ,  C23C16/545 ,  A61L2420/02 ,  A61L2420/06 ,  A61N1/086

Abstract: A system for forming surface modified substrates includes a laser system, and a laser processing chamber. A laser scanner automatically controls a position of the laser beam or an x-y translating stage upon which the laser processing chamber is mounted thereon for scanning the laser beam relative to a substrate of material (M) having a bulk portion and an outer surface integrated with the bulk portion, and a coating including metal organic molecules including at least one metal X or particles of metal X on the outer surface. At laser-heated spots atoms of X from the metal coating diffuse into the outer surface to form a modified surface layer including both M and X. The modified surface layer has a thickness of 1 nm, and a 25° C. electrical conductivity ≥2.5% above or ≤2.5% below a 25° C. electrical conductivity in the bulk portion.

公开(公告)号：US10732118B2

公开(公告)日：2020-08-04

申请号：US16597277

申请日：2019-10-09

Applicant: UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC. ,  THE U.S.A. AS REPRESENTED BY THE SECRETARY OF THE NAVY

Inventor： Chandraika Sugrim ,  Ranganathan Kumar ,  Aravinda Kar ,  Robert Burkhart

IPC: G01N21/76 ,  H01L27/146 ,  H01S5/00 ,  H01S5/026

Abstract: A detector is for identifying chemicals in a sample. The detector may include a photodetector comprising SiC semiconductor material and configured to have an acceptor energy band of range Ea−ΔEa to Ea+ΔEa. The SiC semiconductor material may be doped with a dopant to exceed a threshold dopant concentration level. The photodetector may be configured to receive fluorescence information from the sample.

公开(公告)号：US11084100B2

公开(公告)日：2021-08-10

申请号：US16110668

申请日：2018-08-23

Applicant: University of Central Florida Research Foundation, Inc.

Inventor： Aravinda Kar ,  Ranganathan Kumar ,  Eduardo Castillo Orozco

IPC: B29C64/00 ,  B22F12/00 ,  B33Y10/00 ,  B33Y30/00 ,  B05B5/025 ,  B33Y70/00 ,  H01L31/0352 ,  H01L31/0312 ,  H01L31/0745 ,  H01L31/18 ,  H01L31/06 ,  B22F1/00 ,  H01L31/075 ,  B05D1/04 ,  B05D3/06 ,  C03B19/01 ,  C03B19/06 ,  B22F10/10

Abstract: A laser-assisted microfluidics manufacturing process has been developed for the fabrication of additively manufactured structures. Roll-to-roll manufacturing is enhanced by the use of a laser-assisted electrospray printhead positioned above the flexible substrate. The laser electrospray printhead sprays microdroplets containing nanoparticles onto the substrate to form both thin-film and structural layers. As the substrate moves, the nanoparticles are sintered using a laser beam directed by the laser electrospray printhead onto the substrate.

公开(公告)号：US20190284699A1

公开(公告)日：2019-09-19

申请号：US16431519

申请日：2019-06-04

Applicant: University of Central Florida Research Foundation, Inc.

Inventor： Rajan Vaidyanathan ,  Aravinda Kar

IPC: C23C16/56 ,  A61L27/30 ,  A61L31/08 ,  C23C16/48 ,  C23C10/28 ,  C23C16/54

Abstract: A system for forming surface modified substrates includes a laser system, and a laser processing chamber. A laser scanner automatically controls a position of the laser beam or an x-y translating stage upon which the laser processing chamber is mounted thereon for scanning the laser beam relative to a substrate of material (M) having a bulk portion and an outer surface integrated with the bulk portion, and a coating including metal organic molecules including at least one metal X or particles of metal X on the outer surface. At laser-heated spots atoms of X from the metal coating diffuse into the outer surface to form a modified surface layer including both M and X. The modified surface layer has a thickness of 1 nm, and a 25° C. electrical conductivity ≥2.5% above or ≤2.5% below a 25° C. electrical conductivity in the bulk portion.

公开(公告)号：US20190061000A1

公开(公告)日：2019-02-28

申请号：US16110668

申请日：2018-08-23

Applicant: University of Central Florida Research Foundation, Inc.

Inventor： Aravinda Kar ,  Ranganathan Kumar ,  Eduardo Castillo Orozco

IPC: B22F3/105 ,  B33Y10/00 ,  B33Y30/00 ,  B05B5/025 ,  B05D1/04 ,  B05D3/06 ,  C03B19/01

Abstract: A laser-assisted microfluidics manufacturing process has been developed for the fabrication of additively manufactured structures. Roll-to-roll manufacturing is enhanced by the use of a laser-assisted electrospray printhead positioned above the flexible substrate. The laser electrospray printhead sprays microdroplets containing nanoparticles onto the substrate to form both thin-film and structural layers. As the substrate moves, the nanoparticles are sintered using a laser beam directed by the laser electrospray printhead onto the substrate.

公开(公告)号：US11534833B2

公开(公告)日：2022-12-27

申请号：US17366442

申请日：2021-07-02

Applicant: University of Central Florida Research Foundation, Inc.

Inventor： Aravinda Kar ,  Ranganathan Kumar ,  Eduardo Castillo Orozco

IPC: B22F12/00 ,  B33Y10/00 ,  B33Y30/00 ,  B05B5/025 ,  B33Y70/00 ,  H01L31/0352 ,  H01L31/0312 ,  H01L31/0745 ,  H01L31/18 ,  B29C64/00 ,  H01L31/06 ,  H01L31/075 ,  B22F1/054 ,  B05D1/04 ,  B05D3/06 ,  C03B19/01 ,  C03B19/06 ,  B22F10/10

Abstract: A laser-assisted microfluidics manufacturing process has been developed for the fabrication of additively manufactured structures. Roll-to-roll manufacturing is enhanced by the use of a laser-assisted electrospray printhead positioned above the flexible substrate. The laser electrospray printhead sprays microdroplets containing nanoparticles onto the substrate to form both thin-film and structural layers. As the substrate moves, the nanoparticles are sintered using a laser beam directed by the laser electrospray printhead onto the substrate.