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公开(公告)号：US20180299535A1
公开(公告)日：2018-10-18
申请号：US15490554
申请日：2017-04-18
Inventor： Jeffrey L. Jew , Paul R. Moffitt , Leonard A. Pomeranz , Hermanus S. Pretorius
CPC classification number: G01S7/4865 , G01S7/4863 , G01S7/487 , G01S17/10
Abstract: An active receiver having a digital-pixel focal plane array (DFPA) ranges a target when observing return pulses from a pulsed laser beam synced with the receiver. The DFPA establishes a time when the pulsed laser beam contacts a target and the range can then be established because the speed at which the laser beam travels is known. Various basis functions may be implemented with the DFPA data to establish when the laser beam contacts the target. Some exemplary basis functions are binary basis functions, and other exemplary basis functions are Fourier basis functions.
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公开(公告)号：US10535495B2
公开(公告)日：2020-01-14
申请号：US15949168
申请日：2018-04-10
Inventor： Chris L. Willis , Eugene M. Lavely , Adam J. Marcinuk , Paul R. Moffitt , Jonathan R. Takahashi
IPC: H01J37/20 , H01J37/24 , H01J37/244
Abstract: A system and method for imaging a sample having a complex structure (such as an integrated circuit). The sample is placed on a motion system that moves the sample with respect to an electron beam generator that is used in imaging the sample. The motion system affords thirteen degrees-of-freedom for movement of the sample, by providing a rotation stage, a fine 6-axis piezoelectric-driven stage, and a coarse 6-axis hexapod stage. Various detectors gather information to image the sample. Interferometric and/or capacitive sensors are used to measure the position of the sample and motion system.
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公开(公告)号：US09667021B2
公开(公告)日：2017-05-30
申请号：US14876085
申请日：2015-10-06
Inventor： Daniel J. Creeden , Peter A. Ketteridge , Paul R. Moffitt , Katherine J. Snell
CPC classification number: H01S3/0092 , H01S3/06716 , H01S3/06741 , H01S3/06754 , H01S3/094007 , H01S3/1611 , H01S3/1618
Abstract: In the method for generating blue laser light with high optical and electrical efficiency, wherein the improvement comprises the step of using a phosphate glass photonic crystal fiber rod as a gain medium.
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公开(公告)号：US20190311881A1
公开(公告)日：2019-10-10
申请号：US15949166
申请日：2018-04-10
Inventor： Eugene M. Lavely , Adam J. Marcinuk , Amrita V. Masurkar , Paul R. Moffitt , Michael S. Richman , Jonathan R. Takahashi , Jonathan K. Tong , Chris L. Willis
IPC: H01J37/244 , H01J37/20 , H01J37/28 , H01J37/22
Abstract: A system and method for imaging a sample having a complex structure (such as an integrated circuit) implements two modes of operation utilizing a common electron beam generator that produces an electron beam within a chamber. In the first mode, the electron beam interacts directly with the sample, and backscattered electrons, secondary electrons, and backward propagating fluorescent X-rays are measured. In the second mode, the electron beam interrogates the sample via X-rays generated by the electron beam within a target that is positioned between the electron beam generator and the sample. Transmitted X-rays are measured by a detector within the vacuum chamber. The sample is placed on a movable platform to precisely position the sample with respect to the electron beam. Interferometric and/or capacitive sensors are used to measure the position of the sample and movable platform to provide high accuracy metadata for performing high resolution three-dimensional sample reconstruction.
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公开(公告)号：US20190311877A1
公开(公告)日：2019-10-10
申请号：US15949168
申请日：2018-04-10
Inventor： Chris L. Willis , Eugene M. Lavely , Adam J. Marcinuk , Paul R. Moffitt , Jonathan R. Takahashi
IPC: H01J37/20 , H01J37/244
Abstract: A system and method for imaging a sample having a complex structure (such as an integrated circuit). The sample is placed on a motion system that moves the sample with respect to an electron beam generator that is used in imaging the sample. The motion system affords thirteen degrees-of-freedom for movement of the sample, by providing a rotation stage, a fine 6-axis piezoelectric-driven stage, and a coarse 6-axis hexapod stage. Various detectors gather information to image the sample. Interferometric and/or capacitive sensors are used to measure the position of the sample and motion system.
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Patent Agency Ranking
公开(公告)号：US20190011803A1
公开(公告)日：2019-01-10
申请号：US15641683
申请日：2017-07-05
Inventor： Paul R. Moffitt , Peter A. Ketteridge , Peter G. Schunemann
Abstract: A solid state optical beam steering device and method of operation includes converting a frequency or wavelength of a signal in a non-linear converter associated with one channel just before launch. A second channel has a similar constructions and operation. A processor compares the phase difference between the two channels and uses the difference to horizontally steer a beam without moving mechanical parts. This establishes the solid-state nature of the present disclosure. The non-linear converter may be a quasi-phase matched non-linear converter with alternating crystal domains.
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7.发明授权公开(公告)号：US11614365B1
公开(公告)日：2023-03-28
申请号：US17229310
申请日：2021-04-13
Inventor： Jeremy B. Reeves , Steven R. Jost , Paul R. Moffitt , Ian B. Murray , David J. Shelton , Raymond D. Tower, Jr.
Abstract: A luminescent diode surface within the cold shield of an infrared camera to allow for continuous non-uniformity correction with uniform irradiance across an infrared IR detector array. Further provided by the inclusion of a luminescent diode surface within the cold shield paneling is the ability to change the diode bias providing a negative luminescent effect while utilizing reverse bias and an electro-luminescent effect while utilizing a forward bias. This may then further allow for multiple set points to provide continuous offset and gain correction and to correct non-linear response effects.
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公开(公告)号：US10520590B2
公开(公告)日：2019-12-31
申请号：US15490554
申请日：2017-04-18
Inventor： Jeffrey L. Jew , Paul R. Moffitt , Leonard A. Pomeranz , Hermanus S. Pretorius
Abstract: An active receiver having a digital-pixel focal plane array (DFPA) ranges a target when observing return pulses from a pulsed laser beam synced with the receiver. The DFPA establishes a time when the pulsed laser beam contacts a target and the range can then be established because the speed at which the laser beam travels is known. Various basis functions may be implemented with the DFPA data to establish when the laser beam contacts the target. Some exemplary basis functions are binary basis functions, and other exemplary basis functions are Fourier basis functions.
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公开(公告)号：US10468230B2
公开(公告)日：2019-11-05
申请号：US15949166
申请日：2018-04-10
Inventor： Eugene M. Lavely , Adam J. Marcinuk , Amrita V. Masurkar , Paul R. Moffitt , Michael S. Richman , Jonathan R. Takahashi , Jonathan K. Tong , Chris L. Willis
Abstract: A system and method for imaging a sample having a complex structure (such as an integrated circuit) implements two modes of operation utilizing a common electron beam generator that produces an electron beam within a chamber. In the first mode, the electron beam interacts directly with the sample, and backscattered electrons, secondary electrons, and backward propagating fluorescent X-rays are measured. In the second mode, the electron beam interrogates the sample via X-rays generated by the electron beam within a target that is positioned between the electron beam generator and the sample. Transmitted X-rays are measured by a detector within the vacuum chamber. The sample is placed on a movable platform to precisely position the sample with respect to the electron beam. Interferometric and/or capacitive sensors are used to measure the position of the sample and movable platform to provide high accuracy metadata for performing high resolution three-dimensional sample reconstruction.
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公开(公告)号：US10234745B2
公开(公告)日：2019-03-19
申请号：US15641683
申请日：2017-07-05
Inventor： Paul R. Moffitt , Peter A. Ketteridge , Peter G. Schunemann
Abstract: A solid state optical beam steering device and method of operation includes converting a frequency or wavelength of a signal in a non-linear converter associated with one channel just before launch. A second channel has a similar constructions and operation. A processor compares the phase difference between the two channels and uses the difference to horizontally steer a beam without moving mechanical parts. This establishes the solid-state nature of the present disclosure. The non-linear converter may be a quasi-phase matched non-linear converter with alternating crystal domains.
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