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公开(公告)号：US11531146B2
公开(公告)日：2022-12-20
申请号：US16944005
申请日：2020-07-30
Applicant: Seagate Technology LLC
Inventor： Aditya Jain , Zoran Jandric , Dan Mohr , Kevin A. Gomez , Krishnan Subramanian
Abstract: An active metasurface includes a number of periodically-repeated unit cells arranged on a substrate, each of the unit cells including a high-index dielectric block; a heat source positioned to selectively modulate heat applied to the high-index dielectric block; and an insulating undercut region at an interface between the high-index dielectric block and the substrate.
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公开(公告)号：US20210199803A1
公开(公告)日：2021-07-01
申请号：US16810736
申请日：2020-03-05
Applicant: Seagate Technology LLC
Inventor： Daniel J. Klemme , Pierre Asselin , Zoran Jandric
Abstract: A device includes a controller with a processor and memory with instructions for controlling power to a light source such that the light source emits a frequency-modulated continuous light beam that, over time, includes an up region, a down region, and a flat region. The up region includes increasing a frequency of the continuous light beam, the down region includes decreasing the frequency of the continuous light beam, and the flat region includes maintaining the frequency of the continuous light beam at a constant frequency.
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公开(公告)号：US20200174103A1
公开(公告)日：2020-06-04
申请号：US16206831
申请日：2018-11-30
Applicant: Seagate Technology LLC
Inventor： Kevin A. Gomez , Zoran Jandric , Krishnan Subramanian , Pierre Asselin , Dan Mohr , Raghu Ambekar Ramachandra Rao
Abstract: An apparatus includes a detector, a light source configured to emit light, a reflecting apparatus having multiple reflective facets, and a mirror. The reflecting apparatus is configured to rotate around an axis and arranged to reflect the emitted light from the light source and reflect backscattered light. The mirror is arranged to reflect the backscattered light from the reflecting apparatus towards the detector.
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公开(公告)号：US20200174102A1
公开(公告)日：2020-06-04
申请号：US16206776
申请日：2018-11-30
Applicant: Seagate Technology LLC
Inventor： Pierre Asselin , Martin Giles Blaber , Zoran Jandric , Dan Mohr , Kevin A. Gomez
Abstract: An apparatus includes a detector, a light source configured to emit light, a plurality of disks, and a focusing apparatus. Each disk includes a set of prisms, and each disk is independently rotatable, arranged to receive the emitted light directly or indirectly from the light source, and arranged to receive backscattered light from an object. The focusing apparatus is arranged to focus the backscattered light from the plurality of disks towards the detector.
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公开(公告)号：US20150364152A1
公开(公告)日：2015-12-17
申请号：US14834140
申请日：2015-08-24
Applicant: Seagate Technology LLC
Inventor： Michael Thomas Johnson , Manuel Charles Anaya-Dufresne , Zoran Jandric
IPC: G11B7/1263
CPC classification number: G11B7/1263 , G11B5/02 , G11B5/3136 , G11B5/40 , G11B5/455 , G11B5/607 , G11B11/10515 , G11B11/10595 , G11B13/08 , G11B2005/0021
Abstract: A light source is configured to produce light, a waveguide is optically coupled to the light source and configured to direct the light to an intended focus location, and a slider is configured to use the light as an energy source for heating a region of a magnetic recording medium. A thermal sensor is situated on the slider at a location outside of a light path that includes the intended focus location. The thermal sensor is configured for sensing a short time constant change in temperature resulting from light source heating of the thermal sensor, wherein the sensed change in thermal sensor temperature is representative of optical intensity of the light delivered to the intended focus location.
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Patent Agency Ranking
公开(公告)号：US20150325261A1
公开(公告)日：2015-11-12
申请号：US14709705
申请日：2015-05-12
Applicant: Seagate Technology LLC
Inventor： Ruoxi Yang , James Gary Wessel , Rachel Frakie , Chubing Peng , Werner Scholz , Chris Rea , Zoran Jandric , Mourad Benakli , Tae-Woo Lee
CPC classification number: G11B5/6088 , G02B6/02042 , G02B6/02052 , G02B6/1226 , G02B2006/12121 , G11B5/3133 , G11B5/314 , G11B5/4866 , G11B7/24062 , G11B2005/0021
Abstract: An apparatus is includes a near field transducer positioned adjacent a media-facing surface and at the end of a waveguide having at least one core layer and a cladding layer. The apparatus also includes at least one optical reflector positioned adjacent opposing cross-track edges of the near field transducer and/or adjacent a down-track side of the near-field transducer.
Abstract translation: 一种装置包括邻近面向介质的表面定位的近场传感器，以及位于具有至少一个芯层和包覆层的波导的端部。 该装置还包括至少一个光学反射器，其位于近场换能器的相对的交叉轨道边缘附近和/或邻近近场换能器的下轨道侧。
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7.发明申请公开(公告)号：US20150036469A1
公开(公告)日：2015-02-05
申请号：US13954142
申请日：2013-07-30
Applicant: Seagate Technology LLC
Inventor： Michael Thomas Johnson , Manuel Charles Anaya-Dufresne , Zoran Jandric
IPC: G11B13/08
CPC classification number: G11B7/1263 , G11B5/02 , G11B5/3136 , G11B5/40 , G11B5/455 , G11B5/607 , G11B11/10515 , G11B11/10595 , G11B13/08 , G11B2005/0021
Abstract: A light source is configured to produce light, a waveguide is optically coupled to the light source and configured to direct the light to an intended focus location, and a slider is configured to use the light as an energy source for heating a region of a magnetic recording medium. A thermal sensor is situated on the slider at a location outside of a light path that includes the intended focus location. The thermal sensor is configured for sensing a short time constant change in temperature resulting from light source heating of the thermal sensor, wherein the sensed change in thermal sensor temperature is representative of optical intensity of the light delivered to the intended focus location.
Abstract translation: 光源被配置为产生光，波导光学耦合到光源并且被配置为将光引导到预期的焦点位置，并且滑块被配置为使用光作为加热磁性区域的能量源 记录介质。 热传感器位于包括预期焦点位置的光路外部位置的滑块上。 热传感器被配置用于感测由热传感器的光源加热引起的短时间恒定温度变化，其中感测到的热传感器温度的变化代表传送到预期焦点位置的光的光强度。
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公开(公告)号：US11754711B2
公开(公告)日：2023-09-12
申请号：US16810736
申请日：2020-03-05
Applicant: Seagate Technology LLC
Inventor： Daniel J. Klemme , Pierre Asselin , Zoran Jandric
CPC classification number: G01S17/34 , G01S7/4808 , G01S17/89
Abstract: A device includes a controller with a processor and memory with instructions for controlling power to a light source such that the light source emits a frequency-modulated continuous light beam that, over time, includes an up region, a down region, and a flat region. The up region includes increasing a frequency of the continuous light beam, the down region includes decreasing the frequency of the continuous light beam, and the flat region includes maintaining the frequency of the continuous light beam at a constant frequency.
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公开(公告)号：US11635553B2
公开(公告)日：2023-04-25
申请号：US16943972
申请日：2020-07-30
Applicant: Seagate Technology LLC
Inventor： Aditya Jain , Zoran Jandric , Dan Mohr , Kevin A. Gomez , Krishnan Subramanian
Abstract: An active metasurface includes a number of periodically-repeated unit cells arranged on a substrate that each include a plasmonic waveguide shaped and sized to provide a cutoff mode that captures light of a target wavelength. The active metasurface includes an index modulation controller that controllably varies a voltage differential across each one of the periodically-repeated cells to change a phase of light incident on the metasurface.
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公开(公告)号：US20220276354A1
公开(公告)日：2022-09-01
申请号：US17747832
申请日：2022-05-18
Applicant: Seagate Technology LLC
Inventor： Kevin A. Gomez , Zoran Jandric , Krishnan Subramanian , Pierre Asselin , Dan Mohr , Raghu Ambekar Ramachan Rao
Abstract: An apparatus includes a detector, a light source configured to emit light, a reflecting apparatus having multiple reflective facets, and a mirror. The reflecting apparatus is configured to rotate around an axis and arranged to reflect the emitted light from the light source and reflect backscattered light. The mirror is arranged to reflect the backscattered light from the reflecting apparatus towards the detector.
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