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公开(公告)号：US11320590B2
公开(公告)日：2022-05-03
申请号：US16836047
申请日：2020-03-31
Inventor： Yusheng Bian , Sujith Chandran , Jaime Viegas , Humarira Zafar , Ajey Poovannummoottil Jacob
Abstract: Structures for a polarizer and methods of fabricating a structure for a polarizer. A waveguide crossing includes a first arm and a second arm. A waveguide loop couples the first arm of the waveguide crossing to the second arm of the waveguide crossing. The waveguide crossing and the waveguide loop provide a structure for the polarizer.
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公开(公告)号：US20220100093A1
公开(公告)日：2022-03-31
申请号：US17485065
申请日：2021-09-24
Applicant: Khalifa University of Science and Technology
Inventor： Raquel FLORES , Ricardo JANEIRO , Jaime VIEGAS
IPC: G03F7/20 , H01L21/027 , H01L21/308 , H01L21/033 , H01L21/3065 , H01L21/311
Abstract: In this work is presented a method for fabrication of high-aspect ratio structures through spalling effect. The spalling is achieved through lithography, etching and sputtering processes, thus providing the flexibility to position the spalled structures according to the application requirements. This method has been successfully demonstrated for metal-oxides and metals. The width of the fabricated structures is dependent on the thickness of the film deposited by sputtering, where structures as small as 20 nm in width have been obtained.
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公开(公告)号：US20210389056A1
公开(公告)日：2021-12-16
申请号：US17279401
申请日：2019-10-29
Applicant: KHALIFA UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Nicolas CALVET , Jean-Francois HOFFMANN , Djawed BELASRI
IPC: F28D20/00
Abstract: There is provided a modular and high-temperature thermal energy storage system, which withstands temperature and mechanical conditions. The disclosed thermal energy storage system comprises a thermal energy storage assembly to adapt to storage capacity requirements of an energy consumer comprises a plurality of thermal energy storage modules are stacked on top of each other to increase energy storage capacity, wherein the stack of thermal energy storage modules acts as a single thermal energy storage unit. Also disclosed is a regenerator manufactured using a plurality of thermal energy storage modules comprises a first chamber to store heat from a hot source resulting in charging operation, and a second chamber to transfer the stored heat to air resulting in discharging. A parallel configuration of the thermal energy storage modules allows for simultaneous charging and discharging operations.
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公开(公告)号：US20210341634A1
公开(公告)日：2021-11-04
申请号：US17377219
申请日：2021-07-15
Applicant: Khalifa University of Science and Technology
Inventor： Baker Mohammad , Maguy Abi Jaoude , Heba Abunahla , Mahmoud Al-Qutayri , Curtis O'Kelly
Abstract: Devices, systems, and methods of using one or more memristors as a radiation sensor are enabled. A memristor can be attractive as a sensor due to its passive low power characteristics. Medical and environment monitoring are contemplated use cases. Sensing radiation as part of a security system (at an airport for example) and screening food for radiation exposure are also possible uses. The memristor as a radiation sensor may possibly provide an inexpensive and easy alternative to personal thermoluminescent dosimeters (TLD). Memristor devices with high current and low power operation may be attached with wearable plastic substrates. An example device includes two metal strips with a 50 μm thick layer of TiO2 memristor material. The device may be made large relative to traditional memristors which are nanometers in scale but its increased thickness can significantly increase the probability of radiation interaction with the memristor material.
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公开(公告)号：US11150407B2
公开(公告)日：2021-10-19
申请号：US16821299
申请日：2020-03-17
Inventor： Yusheng Bian , Ajey Poovannummoottil Jacob , Sujith Chandran
Abstract: Structures for an optical coupler and methods of fabricating a structure for an optical coupler. A first waveguide core has a first tapered section and a second waveguide core has a second tapered section positioned adjacent to the first tapered section. The first tapered section has a first shape determined by a first non-linear function, and the second tapered section has a second shape determined by a second non-linear function.
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Patent Agency Ranking
公开(公告)号：US20210318489A1
公开(公告)日：2021-10-14
申请号：US16848698
申请日：2020-04-14
Inventor： Haider BUTT , Mohamed ELSHERIF
Abstract: Embodiments include a fiber optic probe comprising an optical fiber, and a sensor component attached to the optical fiber, the sensor component including an asymmetric microlens array imprinted on a stimuli-responsive hydrogel. Embodiments further include a method of fabricating a fiber optic probe comprising depositing a stimuli-responsive hydrogel precursor solution on a substrate mold, the substrate mold including a concave asymmetric microlens array; contacting an end of an optical fiber with the stimuli-responsive hydrogel precursor solution deposited on the substrate mold; and exposing the end of the optical fiber and the stimuli-responsive hydrogel precursor solution to light to form a stimuli-responsive hydrogel sensor imprinted with a convex asymmetric microlens array and attached to the end of the optical fiber. Embodiments further include systems comprising the fiber optic probes.
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公开(公告)号：US20210245169A1
公开(公告)日：2021-08-12
申请号：US17241987
申请日：2021-04-27
Applicant: KHALIFA UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Fawzi Ahmed Ibraheem BANAT , Emad Yousef Mahmoud ALHSEINAT , Priyabrata PAL , Anjali ACHAZHIYATH EDATHIL
Abstract: An apparatus and a method for removing salts from a liquid are described. A first liquid containing at least one salt is mixed with magnetic composite particles. A subsequent separation of the particles from the liquid is achieved using an electromagnetic source.
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公开(公告)号：US20210208050A1
公开(公告)日：2021-07-08
申请号：US16737520
申请日：2020-01-08
Applicant: Khalifa University of Science and Technology
Inventor： Ali M. ALSUMAITI , Abdul Ravoof SHAIK , Waleed Alameri , Saikrishna Kanukollu
Abstract: There is provided a method and apparatus for accelerated in-situ prediction and dynamic visualization of characteristics of a porous medium, including an input source for inputting data from computer-aided simulations and real-time core flooding experiments, an embedded hardware unit comprising of a processor running a prediction model with inferences of porous medium samples, and a human-machine interface comprising a display unit for displaying the estimated plurality of characteristics of the porous medium and an input unit for accepting commands from a user. The input source is in real-time communication with the embedded hardware unit and the display unit and the apparatus reduces a total analysis time taken for characterizing the porous medium. Further, the porous medium is a rock sample and the plurality of properties of the porous medium comprises the relative permeability (Kr) and capillary pressure (Pc) characteristics of the porous medium.
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公开(公告)号：US11020752B2
公开(公告)日：2021-06-01
申请号：US16339479
申请日：2016-10-05
Applicant: Khalifa University of Science and Technology
Inventor： Fawzi Ahmed Ibraheem Banat , Emad Yousef Mahmoud Alhseinat , Priyabrata Pal , Anjali Achazhiyath Edathil
Abstract: An apparatus and a method for removing salts from a liquid are described. A first liquid containing at least one salt is mixed with magnetic composite particles. A subsequent separation of the particles from the liquid is achieved using an electromagnetic source.
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公开(公告)号：US10989873B1
公开(公告)日：2021-04-27
申请号：US16663696
申请日：2019-10-25
Inventor： Ajey Poovannummoottil Jacob , Yusheng Bian , Sujith Chandran , Marcus Dahlem
Abstract: Structures for a waveguide crossing and methods of fabricating a structure for a waveguide crossing. A waveguide crossing includes a central section and an arm positioned between a waveguide core and the central section. The arm and the waveguide core are aligned along a longitudinal axis. The arm is coupled to the waveguide core at a first interface, and the arm is coupled to a portion of the central section at a second interface. The arm has a first width at the first interface, a second width at the second interface, and a third width between the first interface and the second interface. The third width is greater than either the first width or the second width.
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