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公开(公告)号：US11960051B2
公开(公告)日：2024-04-16
申请号：US17292124
申请日：2019-10-14
Applicant: Agency for Science, Technology and Research
Inventor： Shiyang Zhu , Chih-Kuo Tseng , Ting Hu , Zhengji Xu , Yuan Dong , Alex Yuandong Gu
Abstract: Various embodiments may provide a method of fabricating a meta-lens structure. The method may include forming a first dielectric layer in contact with a silicon wafer. The method may also include forming a second dielectric layer in contact with the first dielectric layer. A refractive index of the second dielectric layer may be different from a refractive index of the first dielectric layer. The method may further include, in patterning the second dielectric layer. The method may additionally include removing at least a portion of the silicon wafer to expose the first dielectric layer.
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公开(公告)号：US20210063658A1
公开(公告)日：2021-03-04
申请号：US16961011
申请日：2019-01-16
Applicant: Agency for Science, Technology and Research
Inventor： Lennon Yao Ting Lee , Lionel You Liang Wong , Alex Yuandong Gu
IPC: G02B6/42 , G01N21/3504
Abstract: Various embodiments may relate to an optical device. The device may include an elongate substrate, an emitter portion at a distal end portion of the elongate substrate, the emitter portion configured to emit light, and an actuator portion at a proximal end portion of the elongate substrate opposite the distal end portion of the elongate substrate. The emitter portion may include a first electrode, a second electrode, and an active layer between the first electrode and the second electrode so that the light is emitted due to an increase in a temperature of the active layer upon application of a first potential difference between the first electrode and the second electrode. The active layer may be patterned to form a photonic crystal layer for enhancing directionality of the emitted light.
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公开(公告)号：US20200278289A1
公开(公告)日：2020-09-03
申请号：US16649448
申请日：2018-10-08
Applicant: Agency for Science, Technology and Research
Inventor： Hong Cai , Jifang Tao , Lennon Yao Ting Lee , Alex Yuandong Gu
IPC: G01N21/3504 , G01N21/77
Abstract: Various embodiments may relate a chemical sensor. The chemical sensor may include a substrate including a first sealed (or isolated) cavity and a second sealed (or isolated) cavity separate from the first sealed (or isolated) cavity. The chemical sensor may also include an emitter in the first sealed (or isolated) cavity, the emitter configured to emit infrared light. The chemical sensor may further include a detector in the second sealed (or isolated) cavity. The chemical sensor may also include a waveguide configured to carry the infrared light from the emitter to the detector. The waveguide may include a sensing portion configured such that a property of the infrared light carried through the sensing portion changes in response to a chemical entity in contact with the sensing portion. The detector may be configured to detect the change in the property (of the infrared light).
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公开(公告)号：US10578438B2
公开(公告)日：2020-03-03
申请号：US16076563
申请日：2017-01-24
Applicant: Agency for Science, Technology and Research
Inventor： Guoqiang Wu , Jifang Tao , Alex Yuandong Gu , Junfeng Song
Abstract: Various embodiments may provide an optical gyroscope. The optical gyroscope may include a ring resonator, an input source configured to generate or provide a first light beam and a second light beam to the ring resonator, and a switching pathway having an input end and an output end coupled to the ring resonator, and may include a plurality of switches. The optical gyroscope may include a control circuit configured to control the plurality of switches to allow the first light beam to propagate from the input end to the output end along the switching pathway during a first time interval, and allow the second light beam to propagate from the input end to the output end along the switching pathway during a second time interval. The optical gyroscope may additionally include a detector loop configured to receive the first light beam and the second light beam from the ring resonator.
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公开(公告)号：US10215692B2
公开(公告)日：2019-02-26
申请号：US15519011
申请日：2015-10-16
Applicant: Agency for Science, Technology and Research
Inventor： Jifang Tao , Hong Cai , Alex Yuandong Gu , Hyun Kee Chang
IPC: G02B6/00 , G02B6/10 , G01N21/3504 , G02B6/12
Abstract: There is provided an optical waveguide structure, including a substrate, an insulating layer disposed on the substrate whereby the insulating layer includes an air slot formed therein, a first material layer suspended over the air slot whereby the first material layer constitutes a waveguide core of the optical waveguide structure, and a second material layer disposed over the waveguide core whereby the waveguide core is suspended over the air slot by the second material layer. There is also provided an optical gas sensor incorporating the optical waveguide structure and methods of fabrication thereof.
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Patent Agency Ranking
公开(公告)号：US09829358B2
公开(公告)日：2017-11-28
申请号：US15031982
申请日：2014-11-21
Applicant: Agency for Science, Technology and Research
Inventor： Xiaojing Mu , Chengliang Sun , Alex Yuandong Gu
CPC classification number: G01F1/3218 , G01F1/3209 , G01F1/36 , G01F1/48 , G01F15/063 , H02N2/185
Abstract: In various embodiments, a device for determining a property of a fluid may be provided. The device may include a fluid receiving structure configured to receive the fluid having a first condition. The device may further include a flow control structure coupled to the fluid receiving structure. The flow control structure may be configured to change the first condition of the fluid to a second condition. The device may further include a determination mechanism configured to determine the property of the fluid based on the second condition. The device may also include a voltage generation mechanism a voltage generation mechanism configured to generate a voltage based on the second condition.
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7.发明申请公开(公告)号：US20170227456A1
公开(公告)日：2017-08-10
申请号：US15519011
申请日：2015-10-16
Applicant: Agency for Science, Technology and Research
Inventor： Jifang Tao , Hong Cai , Alex Yuandong Gu , Hyun Kee Chang
IPC: G01N21/3504 , G02B6/10
CPC classification number: G01N21/3504 , G02B6/00 , G02B6/10 , G02B2006/12097 , G02B2006/12138 , G02B2006/12176
Abstract: There is provided an optical waveguide structure, including a substrate, an insulating layer disposed on the substrate whereby the insulating layer includes an air slot formed therein, a first material layer suspended over the air slot whereby the first material layer constitutes a waveguide core of the optical waveguide structure, and a second material layer disposed over the waveguide core whereby the waveguide core is suspended over the air slot by the second material layer. There is also provided an optical gas sensor incorporating the optical waveguide structure and methods of fabrication thereof.
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公开(公告)号：US11385421B2
公开(公告)日：2022-07-12
申请号：US16961011
申请日：2019-01-16
Applicant: Agency for Science, Technology and Research
Inventor： Lennon Yao Ting Lee , Lionel You Liang Wong , Alex Yuandong Gu
IPC: G02B6/42 , G01N21/3504
Abstract: Various embodiments may relate to an optical device. The device may include an elongate substrate, an emitter portion at a distal end portion of the elongate substrate, the emitter portion configured to emit light, and an actuator portion at a proximal end portion of the elongate substrate opposite the distal end portion of the elongate substrate. The emitter portion may include a first electrode, a second electrode, and an active layer between the first electrode and the second electrode so that the light is emitted due to an increase in a temperature of the active layer upon application of a first potential difference between the first electrode and the second electrode. The active layer may be patterned to form a photonic crystal layer for enhancing directionality of the emitted light.
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公开(公告)号：US20210396910A1
公开(公告)日：2021-12-23
申请号：US17292124
申请日：2019-10-14
Applicant: Agency for Science, Technology and Research
Inventor： Shiyang Zhu , Chih-Kuo Tseng , Ting Hu , Zhengji Xu , Yuan Dong , Alex Yuandong Gu
Abstract: Various embodiments may provide a method of fabricating a meta-lens structure. The method may include forming a first dielectric layer in contact with a silicon wafer. The method may also include forming a second dielectric layer in contact with the first dielectric layer. A refractive index of the second dielectric layer may be different from a refractive index of the first dielectric layer. The method may further include, in patterning the second dielectric layer. The method may additionally include removing at least a portion of the silicon wafer to expose the first dielectric layer.
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公开(公告)号：US10033305B2
公开(公告)日：2018-07-24
申请号：US14550863
申请日：2014-11-21
Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
Inventor： Chengliang Sun , Xiaojing Mu , Ilker Ender Ocak , Alex Yuandong Gu
IPC: H02N2/18 , H01L41/113
CPC classification number: H02N2/188 , H01L41/1134 , H01L41/1136 , Y10T29/42
Abstract: According to embodiments of the present invention, an energy harvesting device is provided. The energy harvesting device includes a plurality of energy harvesting elements, each energy harvesting element including a transducer, and at least one spring arranged in between at least two energy harvesting elements of the plurality of energy harvesting elements to mechanically couple the at least two energy harvesting elements to each other. According to further embodiments of the present invention, a method for forming an energy harvesting device is also provided.
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