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公开(公告)号:US20180136397A1
公开(公告)日:2018-05-17
申请号:US15808640
申请日:2017-11-09
Inventor: Kyung Hyun PARK , Il Min LEE , Eui Su LEE , Ho Jin LEE , Sang Pil HAN , Hyun Soo KIM , Ki Won MOON , Dong Woo PARK
CPC classification number: G02B6/262 , G02B6/264 , G02B27/0927 , G02B27/0944
Abstract: An apparatus providing a terahertz (THz) wave may comprise at least one THz wave generator each of which generates a THz wave; at least one first phase adjuster adjusting a phase of the generated THz wave; at least one waveguide part receiving and combining the at least one phase-adjusted THz wave radiated from the at least one first phase adjuster, and guiding the combined THz wave; at least one second phase adjuster adjusting a phase of the combined THz wave from the at least one waveguide part, which is connected to the at least one waveguide part or disposed in a portion of the at least one waveguide part; and an output module outputting the THz wave guided from the at least one waveguide part.
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公开(公告)号:US20160320573A1
公开(公告)日:2016-11-03
申请号:US15143148
申请日:2016-04-29
Inventor: Eui Su LEE , Won Hui LEE , Kyung Hyun PARK
IPC: G02B6/42
CPC classification number: G02B6/4201 , H01L31/09 , H01S5/0262 , H01S5/1007
Abstract: Disclosed is a photo diode. The photo diode includes: at least two branched waveguides configured to receive beating signals; absorbing layers disposed in vertical directions to the waveguides, and disposed while being spaced apart from distal ends of the waveguides by a predetermined interval; and one or more intermediate layers formed based on the distal ends of the waveguides and disposed with the absorbing layers at upper end of the one or more intermediate layers.
Abstract translation: 公开了一种光电二极管。 所述光电二极管包括:至少两个分支波导,被配置为接收跳动信号; 沿垂直方向设置在波导上的吸收层,并且与波导的远端间隔开预定间隔; 以及基于波导的远端形成的一个或多个中间层,并且在一个或多个中间层的上端设置有吸收层。
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3.
公开(公告)号:US20240134036A1
公开(公告)日:2024-04-25
申请号:US18480795
申请日:2023-10-04
Inventor: Sungwoo JO , Mugeon KIM , JUNGSOO KIM , Kyung Hyun PARK , Il Min LEE , Eui Su LEE , DA HYE CHOI
Abstract: Disclosed is an image generating device, which includes a measurement device including a plurality of transmitters and a plurality of receivers for a multistatic measurement of an object, an image preprocessing device that receives a raw image signal corresponding to the multistatic measurement from the measurement device and generates a preprocessed image signal based on the raw image signal, an image amplifier that generates an amplified image signal based on the preprocessed image signal, and an image restorer that generates a restored image signal corresponding to the object based on the amplified image signal, and the image amplifier is further configured to set up a first virtual transmitter and a first virtual receiver, to obtain first measurement data of a first target transmitter closest to the first virtual transmitter among the plurality of transmitters and a first target receiver closest to the first virtual receiver among the plurality of receivers.
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公开(公告)号:US20230065768A1
公开(公告)日:2023-03-02
申请号:US17507796
申请日:2021-10-21
Inventor: Dong Woo PARK , Kyung Hyun PARK , Dong-Young KIM , Mugeon KIM , Jun-Hwan SHIN , Eui Su LEE , IL MIN LEE , Da Hye CHOI
IPC: H01L31/02 , H01L23/66 , H01L31/0232 , H01L31/0304 , H01L31/09 , H01L31/18
Abstract: Disclosed is a method for fabricating a terahertz device, the method including providing a substrate, doping a conductive impurity on an upper surface of the substrate to form an electrode layer, patterning the electrode layer to form antenna electrodes, and forming a photomixer between the antenna electrodes.
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公开(公告)号:US20200150420A1
公开(公告)日:2020-05-14
申请号:US16668574
申请日:2019-10-30
Inventor: Eui Su LEE , Kyung Hyun PARK , IL MIN LEE , Kiwon MOON , Dong Woo PARK , Hyun Soo KIM , Ho Jin LEE , Jeong Woo PARK , Jun Hwan SHIN , Kyeong Sun CHOI , Dahye CHOI
Abstract: Provided are a polygon mirror assembly and a scan device. A polygon mirror assembly includes: a polygon mirror including a plurality of reflection surfaces spaced apart from a rotation axis by a predetermined distance; a first motor for rotating the polygon mirror around the rotation axis; a second motor for moving the polygon mirror in a first axial direction such that the rotation axis is tilted while the first motor rotates the polygon mirror; and a clock signal extraction surface for extracting a clock signal for detecting a change in a rotational speed of the first motor.
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6.
公开(公告)号:US20190120756A1
公开(公告)日:2019-04-25
申请号:US16144504
申请日:2018-09-27
Inventor: Kiwon MOON , Kyung Hyun PARK , Eui Su LEE , Il Min LEE
IPC: G01N21/3581 , G01J3/42 , G01N21/47
Abstract: Disclosed is a terahertz, reflection imaging system using a rotating polyhedral mirror and a telecentric f-theta lens. The terahertz reflection imaging system may include a light source configured to output a terahertz, beam, a rotating polyhedral mirror of which a mirror is combined with each of polyhedral faces, and configured to reflect the terahertz beam transmitted from the light source in a direction in which a specimen is disposed, a telecentric f-theta lens configured to transmit the terahertz beam reflected from the rotating polyhedral mirror to the specimen and correct a chief ray of the terahertz beam reflected from the rotating polyhedral mirror to be parallel to an optical axis of the telecentric f-theta lens, and a detector configured to detect a terahertz beam reflected from the specimen.
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7.
公开(公告)号:US20150179842A1
公开(公告)日:2015-06-25
申请号:US14307856
申请日:2014-06-18
Inventor: Jeong Woo PARK , Sang Pil HAN , Dae Yong KIM , Hyun Sung KO , Nam Je KIM , Ki Won MOON , Il Min LEE , Eui Su LEE , Kyung Hyun PARK
IPC: H01L31/0352 , H01L31/18
Abstract: Disclosed is a rectifier capable of performing a high speed rectifying operation, and includes: a first semiconductor layer; a second semiconductor layer; and a third semiconductor layer, in which the first semiconductor layer and the third semiconductor layer are formed of semiconductor layers having the same type, and the second semiconductor layer is formed between the first semiconductor layer and the third semiconductor layer, is formed of a semiconductor layer having a different type from that of the first semiconductor layer and the third semiconductor layer, and is formed in graded doped state.
Abstract translation: 公开了一种能够执行高速整流操作的整流器,包括:第一半导体层; 第二半导体层; 以及第三半导体层,其中第一半导体层和第三半导体层由具有相同类型的半导体层形成,并且第二半导体层形成在第一半导体层和第三半导体层之间,由半导体 层与第一半导体层和第三半导体层的类型不同,并且以渐变掺杂状态形成。
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8.
公开(公告)号:US20240104801A1
公开(公告)日:2024-03-28
申请号:US18473843
申请日:2023-09-25
Inventor: Sungwoo JO , Kyung Hyun PARK , Il Min LEE , Mugeon KIM , JUNGSOO KIM , Eui Su LEE , DA HYE CHOI
CPC classification number: G06T11/006 , G01V8/10 , G06T2200/04 , G06T2211/421 , G06T2211/441
Abstract: Disclosed is an image data generating method. Operations of emitting electromagnetic waves to an object and receiving scan signals scanning the object are performed by using a multi-static transceiver. First image data of a low resolution are generated based on the scan signals. when a first condition associated with the first image data is satisfied, second image data of a high resolution associated with a sub-region of the first image data are generated. When a second condition associated with the second image is satisfied, third image data based on the first image data and the second image data are generated.
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公开(公告)号:US20220158355A1
公开(公告)日:2022-05-19
申请号:US17528033
申请日:2021-11-16
Inventor: Dong-Young KIM , Mugeon KIM , Kyung Hyun PARK , Dong Woo PARK , Eui Su LEE , IL MIN LEE
Abstract: Provided is an antenna structure. The structure includes a dielectric lens, an antenna substrate on the dielectric lens, and antenna electrodes on the antenna substrate. Here, each of the antenna electrodes may include a wire electrode and an empty plane having a triangular shape defined by the wire electrode.
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公开(公告)号:US20220140170A1
公开(公告)日:2022-05-05
申请号:US17513805
申请日:2021-10-28
Inventor: Kiwon MOON , Kyung Hyun PARK , Dong Woo PARK , Jun-Hwan SHIN , Eui Su LEE , Hyun Soo KIM , IL MIN LEE
IPC: H01L31/102 , G02F2/02 , H01L31/0304 , H03B7/08 , H01L29/88
Abstract: Provided is a terahertz light source device including an antenna, a plurality of wire electrodes configured to connect the antenna to a power source, a capacitor connected to the wire electrodes between the antenna and the power source, and a plurality of resonance tunneling diodes connected to the wire electrodes between the capacitor and the antenna, and configured to generate a terahertz wave by coupling with the capacitor as a parallel resonance circuit with respect to the power source.
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