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公开(公告)号：US11619581B2
公开(公告)日：2023-04-04
申请号：US17239683
申请日：2021-04-26
Applicant: Purdue Research Foundation
Inventor： Garth Jason Simpson , Fengyuan Deng , Changqin Ding , Chen Li
Abstract: A system including a first micro-retarder array, wherein the first micro-retarder array is configured to convert a purely polarized light of an incident light into two components. The system additionally includes an optical device, wherein the optical device is configured to collimate the two components to two foci planes. Moreover, the system includes a second micro-retarder array, wherein the second micro-retarder array is configured to combine a set of two components of the incident light, thereby producing a second purely polarized light. Further the system includes a detector, wherein the detector is configured to receive the second purely polarized light.
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2.发明申请公开(公告)号：US20220057266A1
公开(公告)日：2022-02-24
申请号：US17518761
申请日：2021-11-04
Applicant: Purdue Research Foundation
Inventor： Garth Jason Simpson , Chen Li , Changqin Li
Abstract: A method for phase contrasting-correlation spectroscopy: converting an incident linearly polarized light into two polarized components (polarized divergent and convergent components, wherein the polarized divergent component is orthogonal to the polarized convergent component), focusing each of the polarized divergent component and the polarized convergent component into a focal plane, thereby producing two focus planes constituting a reference focus (RF) plane and a sample focus (SF) plane; placing a sample at the SF plane and ambient conditions of the sample at the RF plane, resulting in a phase shift between the two polarized components; reconstituting the two phase-shifted polarized components into a phase-shifted linearly polarized light; detecting the phase-shifted linearly polarized light; calculating phase and intensity of the sample from the phase-shifted linearly polarized light; establishing an autocorrelation of phase and intensity of the phase-shifted linearly polarized light; and generating correlograms of intensity and phase of the phase-shifted linearly polarized light.
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公开(公告)号：US11009456B2
公开(公告)日：2021-05-18
申请号：US16560949
申请日：2019-09-04
Applicant: Purdue Research Foundation
Inventor： Garth Jason Simpson , Fengyuan Deng , Changqin Ding , Chen Li
Abstract: A system including a first micro-retarder array, wherein the first micro-retarder array is configured to convert a purely polarized light of an incident light into two components. The system additionally includes an optical device, wherein the optical device is configured to collimate the two components to two foci planes. Moreover, the system includes a second micro-retarder array, wherein the second micro-retarder array is configured to combine a set of two components of the incident light, thereby producing a second purely polarized light. Further the system includes a detector, wherein the detector is configured to receive the second purely polarized light.
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Patent Agency Ranking
公开(公告)号：US11656164B2
公开(公告)日：2023-05-23
申请号：US17329017
申请日：2021-05-24
Applicant: Purdue Research Foundation
Inventor： Garth Jason Simpson , Chen Li , Changqin Ding
CPC classification number: G01N15/0211 , G01J3/0224 , G01J3/457 , G01N15/0227
Abstract: A method of obtaining a measurement signal representative of the particle size distributions in nanocrystal suspensions that includes a step of providing a first light beam along a first axis to a first micro-retarder array to generate polarization wavefront shaped light. The shaped light is applied to an objective configured to focus two orthogonally polarized components of the polarization wavefront shaped light to produce first and second axially offset foci along the first axis. A sample having particles in suspension is disposed in one foci to produce a measurement optical signal having phase and intensity values corresponding to at least some of the particles in suspension. The method also includes determining intensity and quantitative phase information as a function of time based on the optical signals.
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5.发明授权公开(公告)号：US11692877B2
公开(公告)日：2023-07-04
申请号：US17518761
申请日：2021-11-04
Applicant: Purdue Research Foundation
Inventor： Garth Jason Simpson , Chen Li , Changqin Ding
CPC classification number: G01J3/447 , G01J3/021 , G01J2003/1291 , G01J2003/4275
Abstract: A method for phase contrasting-correlation spectroscopy: converting an incident linearly polarized light into two polarized components (polarized divergent and convergent components, wherein the polarized divergent component is orthogonal to the polarized convergent component), focusing each of the polarized divergent component and the polarized convergent component into a focal plane, thereby producing two focus planes constituting a reference focus (RF) plane and a sample focus (SF) plane; placing a sample at the SF plane and ambient conditions of the sample at the RF plane, resulting in a phase shift between the two polarized components; reconstituting the two phase-shifted polarized components into a phase-shifted linearly polarized light; detecting the phase-shifted linearly polarized light; calculating phase and intensity of the sample from the phase-shifted linearly polarized light; establishing an autocorrelation of phase and intensity of the phase-shifted linearly polarized light; and generating correlograms of intensity and phase of the phase-shifted linearly polarized light.
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公开(公告)号：US20220026331A1
公开(公告)日：2022-01-27
申请号：US17329017
申请日：2021-05-24
Applicant: Purdue Research Foundation
Inventor： Garth Jason Simpson , Chen Li , Changqin Li
Abstract: A method of obtaining a measurement signal representative of the particle size distributions in nanocrystal suspensions that includes a step of providing a first light beam along a first axis to a first micro-retarder array to generate polarization wavefront shaped light. The shaped light is applied to an objective configured to focus two orthogonally polarized components of the polarization wavefront shaped light to produce first and second axially offset foci along the first axis. A sample having particles in suspension is disposed in one foci to produce a measurement optical signal having phase and intensity values corresponding to at least some of the particles in suspension. The method also includes determining intensity and quantitative phase information as a function of time based on the optical signals.
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公开(公告)号：US20210262930A1
公开(公告)日：2021-08-26
申请号：US17239683
申请日：2021-04-26
Applicant: Purdue Research Foundation
Inventor： Garth Jason Simpson , Fengyuan Deng , Changqin Ding , Chen Li
Abstract: A system including a first micro-retarder array, wherein the first micro-retarder array is configured to convert a purely polarized light of an incident light into two components. The system additionally includes an optical device, wherein the optical device is configured to collimate the two components to two foci planes. Moreover, the system includes a second micro-retarder array, wherein the second micro-retarder array is configured to combine a set of two components of the incident light, thereby producing a second purely polarized light. Further the system includes a detector, wherein the detector is configured to receive the second purely polarized light.
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公开(公告)号：US20200072745A1
公开(公告)日：2020-03-05
申请号：US16560949
申请日：2019-09-04
Applicant: Purdue Research Foundation
Inventor： Garth Jason Simpson , Fengyuan Deng , Changqin Ding , Chen Li
Abstract: A system including a first micro-retarder array, wherein the first micro-retarder array is configured to convert a purely polarized light of an incident light into two components. The system additionally includes an optical device, wherein the optical device is configured to collimate the two components to two foci planes. Moreover, the system includes a second micro-retarder array, wherein the second micro-retarder array is configured to combine a set of two components of the incident light, thereby producing a second purely polarized light. Further the system includes a detector, wherein the detector is configured to receive the second purely polarized light.
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