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公开(公告)号：US12152091B1
公开(公告)日：2024-11-26
申请号：US18798890
申请日：2024-08-09
Applicant: IMAM MOHAMMAD IBN SAUD ISLAMIC UNIVERSITY
Inventor： Hajo Idriss Mohammed Idriss , Khalid Hassan Ibnouf Ahmed , Osamah Abdulrahman Aldaghri , Abueliz Khalid Modwi Khalid , Amin Osman Elzupir Alamalhuda
Abstract: A method of making a smart optical material (SOM) including mixing polypropylene in a solvent to form a first solution. The method further includes mixing a zinc salt in 2-hydroxyethyl methacrylate and heating it to form a second solution. The method further includes mixing rhodamine B and a peroxide into the second solution to form a third solution. The method further includes mixing the third solution into the first solution to form a reaction solution, wherein the peroxide initiates polymerization of the 2-hydroxyethyl methacrylate to form poly (2-hydroxyethyl methacrylate). The method further includes separating the SOM from the reaction solution. The SOM has at least two bandgaps, a first bandgap is from 1.4-1.5 eV, and a second bandgap is from 1.8-1.9 eV.
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公开(公告)号：US12110350B1
公开(公告)日：2024-10-08
申请号：US18647753
申请日：2024-04-26
Applicant: IMAM MOHAMMAD IBN SAUD ISLAMIC UNIVERSITY
Inventor： Hajo Idriss Mohammed Idriss , Khalid Hassan Ibnouf Ahmed , Osamah Abdulrahman Aldaghri , Abueliz Khalid Modwi Khalid , Amin Osman Elzupir Alamalhuda
CPC classification number: C08F120/06 , C08F2/06 , C08F2/44 , H01S5/36
Abstract: A method of making a smart optical material (SOM) including mixing polypropylene in a solvent to form a first solution. The method further includes mixing a zinc salt in 2-hydroxyethyl methacrylate and heating it to form a second solution. The method further includes mixing rhodamine B and a peroxide into the second solution to form a third solution. The method further includes mixing the third solution into the first solution to form a reaction solution, wherein the peroxide initiates polymerization of the 2-hydroxyethyl methacrylate to form poly(2-hydroxyethyl methacrylate). The method further includes separating the SOM from the reaction solution. The SOM has at least two bandgaps, a first bandgap is from 1.4-1.5 eV, and a second bandgap is from 1.8-1.9 eV.
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3.发明授权
公开(公告)号：US11955776B2
公开(公告)日：2024-04-09
申请号：US18170106
申请日：2023-02-16
Inventor： Sangarange Don Atula Sandanayaka , Fatima Bencheikh , Kenichi Goushi , Jean-Charles Ribierre , Chihaya Adachi , Takashi Fujihara , Toshinori Matsushima
CPC classification number: H01S5/36 , H01S5/026 , H01S5/04253 , H01S5/1206
Abstract: Disclosed is a current-injection organic semiconductor laser diode comprising a pair of electrodes, an optical resonator structure, and one or more organic layers including a light amplification layer composed of an organic semiconductor, which has a sufficient overlap between the distribution of exciton density and the electric field intensity distribution of the resonant optical mode during current injection to emit laser light.
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公开(公告)号：US20240006857A1
公开(公告)日：2024-01-04
申请号：US18344987
申请日：2023-06-30
Applicant: ZHEJIANG UNIVERSITY
Inventor： Dawei DI , Xuhui CAO , Shiyu XING , Yaxiao LIAN
CPC classification number: H01S5/36 , H01S5/14 , H01S2304/04
Abstract: Disclosed are an external-cavity-free low-threshold perovskite laser device and an application thereof. A gain medium is a perovskite material or a combination of the perovskite material and other materials. An ingredient of the perovskite is A′2An−1BnX3n+1, or ABX3, A′ is an organic amine cation, A is a monovalent cation, B is a metal cation, and X is an anion; and a preparation method of the gain medium comprises dissolving A′ X, AX and BX in a solvent to obtain a precursor solution of perovskite or a nanocrystalline, and the gain medium is prepared by a solution method. Or, the A′ X, the AX and the BX are prepared by non-solution methods such as evaporation, vapor deposition, magnetron sputtering and solid-state reaction. According to the laser device in the invention, a resonant cavity does not need to be additionally designed and machined, so that compactness and integration of the device are improved.
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5.发明公开
公开(公告)号：US20230198230A1
公开(公告)日：2023-06-22
申请号：US18170106
申请日：2023-02-16
Inventor： Sangarange Don Atula SANDANAYAKA , Fatima BENCHEIKH , Kenichi GOUSHI , Jean-Charles RIBIERRE , Chihaya ADACHI , Takashi FUJIHARA , Toshinori MATSUSHIMA
CPC classification number: H01S5/36 , H01S5/026 , H01S5/1206 , H01S5/04253
Abstract: Disclosed is a current-injection organic semiconductor laser diode comprising a pair of electrodes, an optical resonator structure, and one or more organic layers including a light amplification layer composed of an organic semiconductor, which has a sufficient overlap between the distribution of exciton density and the electric field intensity distribution of the resonant optical mode during current injection to emit laser light.
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公开(公告)号：US20220376460A1
公开(公告)日：2022-11-24
申请号：US17879826
申请日：2022-08-03
Applicant: SHIMADZU CORPORATION
Inventor： Yusuke NAGAI , Kotaro KAJIKAWA
IPC: H01S3/16 , G01N15/06 , G01N21/05 , G01N21/64 , H01S5/36 , H01S3/213 , H01S3/23 , H01S3/108 , H01S3/30
Abstract: A tube preparation step of preparing a resin tube that has a tube wall impregnable with a solution including a fine substance and is made of a light-transmitting resin material, a solution preparation step of preparing a solution that includes a fine fluorescent substance that emits fluorescence or a fine scattering substance that scatters light as an oscillation material and an impregnation step of causing the resin tube to be immersed in the solution and causing the tube wall of the resin tube to be impregnated with the oscillation material, are included.
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公开(公告)号：US11509118B2
公开(公告)日：2022-11-22
申请号：US16629891
申请日：2018-07-04
Inventor： Markus Karl , Malte C. Gather , Ifor David William Samuel , Graham A. Turnbull
IPC: G06K7/10 , H01S5/36 , B42D25/328 , B42D25/36 , B42D25/45 , G06K7/12 , G06K7/14 , H01S5/04 , H01S5/183 , B42D25/21 , B42D25/29 , G07D7/1205 , G07D7/202
Abstract: A security or identification device comprises a membrane laser structure configured to be optically pumped. The membrane laser structure comprises a flexible emission layer comprising a gain material; and one or more structures formed in or associated with the flexible emission layer and configured to provide optical feedback in the emission layer to produce a laser light output having at least one property representing an identifier.
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公开(公告)号：US20220231481A1
公开(公告)日：2022-07-21
申请号：US17438108
申请日：2020-03-11
Inventor： Sangarange Don Atula SANDANAYAKA , Toshinori MATSUSHIMA , Fatima BENCHEIKH , Jean-Charles RIBIERRE , Ryutaro KOMATSU , Shinobu TERAKAWA , Jong Uk KIM , Adikari Mudiyanselage Chathuranganie SENEVIRATHNE , Chihaya ADACHI , Anthony D'ALEO , Takashi FUJIHARA
Abstract: Disclosed is an electrically driven organic semiconductor laser diode comprising a pair of electrodes, an optical resonator structure having a distributed feedback (DFB) structure, and one or more organic layers including a light amplification layer composed of an organic semiconductor, in which the distributed feedback structure is composed of a first-order Bragg scattering region, a two-dimensional distributed feedback, or a circular distributed feedback.
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公开(公告)号：US11298957B2
公开(公告)日：2022-04-12
申请号：US16614763
申请日：2018-05-04
Inventor： Yongsheng Zhao , Jiannian Yao , Jinyang Zhao , Yongli Yan
IPC: H01S5/40 , B41J2/44 , B41J3/54 , C09D11/328 , C09D11/107 , C09D11/108 , H01S5/36 , B41M3/00 , B41M5/00 , G09G3/02
Abstract: A laser panel, a laser array device, and a laser display. The laser panel and the laser array device separately comprise multiple groups of independent laser light source modules; each group of laser light source modules comprises plural light sources; the plural light sources are all produced by inkjet printing; the laser display and a voltage-driven laser display separately comprise the laser panel. Producing a laser panel by inkjet printing provides a novel technical solution for cheap and industrial manufacturing of laser panels. It is difficult to generate laser coherent superposition between the light emitted by the laser light source module, and therefore, speckles caused by laser coherence in conventional laser display technologies are greatly eliminated. The present invention achieves a voltage-driven laser display, and facilitates achieving a better display effect while reducing the volume of the display.
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公开(公告)号：US11289879B2
公开(公告)日：2022-03-29
申请号：US16895914
申请日：2020-06-08
Applicant: THE GENERAL HOSPITAL CORPORATION
Inventor： Seok Hyun Yun
IPC: H01S3/06 , H01S5/10 , H01S3/16 , H01S3/213 , H01S5/04 , H01S5/40 , H01S5/36 , G01J3/28 , G01N21/64 , G01N15/10 , H01S3/091
Abstract: Disclosed are photonic particles and methods of using particles in biological samples. The particles are configured to emit laser light when energetically stimulated by, e.g., a pump source. The particles may include a gain medium with inorganic materials, an optical cavity with high refractive index, and a coating with organic materials. The particles may be smaller than 3 microns along their longest axes. The particles may attach to each other to form, e.g., doublets and triplets. The particles may be injection-locked by coupling an injection beam into a particle while pumping so that an injection seed is amplified to develop into laser oscillation. A microscopy system may include a pump source, beam scanner, spectrometer with resolution of less than 1 nanometer and acquisition rate of more than 1 kilohertz, and spectral analyzer configured to distinguish spectral peaks of laser output from broadband background.
