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公开(公告)号：US12159369B2
公开(公告)日：2024-12-03
申请号：US17858722
申请日：2022-07-06
Applicant: Purdue Research Foundation
Inventor： Zhaxylyk A. Kudyshev , Demid Sychev , Zachariah Olson Martin , Simeon I. Bogdanov , Xiaohui Xu , Alexander Kildishev , Alexandra Boltasseva , Vladimir Shalaev
IPC: G06T3/40 , G02B21/00 , G06T3/4046 , G06T3/4053
Abstract: A method of providing super-resolved images of a photon emitting particle is disclosed, which includes providing a machine-learning (ML) platform, wherein the ML platform is configured to receive pixel-based sparse autocorrelation data and generate a predicted super-resolved image of a photon emitting particle, receiving photons from the photon emitting particle by two or more photon detectors, each generating an electrical pulse associated with receiving an incident photon thereon, generating sparse autocorrelation data from the two or more photon detectors for each pixel within an image area, and inputting the pixel-based sparse autocorrelation data to the ML platform, thereby generating a predicted super-resolved image of the imaging area, wherein the resolution of the super-resolved image is improved by √n as compared to a classical optical microscope limited by Abbe diffraction limit.
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12.发明申请公开(公告)号：US20200025610A1
公开(公告)日：2020-01-23
申请号：US16362598
申请日：2019-03-22
Applicant: Purdue Research Foundation
Inventor： Rohith Chandrasekar , Amr Shaltout , Vladimir Shalaev , Alexander Chubykin , Alexei Lagoutchev
Abstract: A spectroscopic microscope device, comprising at least one array of metasurfaces, and at least one CCD array integrated with the array of metasurfaces. The metasurfaces in the array are configured to separately direct LCP an RCP components of light incident on the metasurface to separate pixels in the CCD array.
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公开(公告)号：US20180292581A1
公开(公告)日：2018-10-11
申请号：US16000843
申请日：2018-06-05
Applicant: Purdue Research Foundation
Inventor： Vladimir Shalaev , Alexander Kildishev , Xingjie Ni , Satoshi Ishii
CPC classification number: G02B5/008 , B82Y20/00 , G02B1/002 , Y10S977/834
Abstract: An ultra-thin planar device is used for arbitrary waveform formation on a micrometer scale, regardless of the incident light's polarization. Patterned perforations are made in a 30 nm-thick metal film, creating discrete phase shifts and forming a desired wavefront of cross-polarized, scattered light. The signal-to-noise ratio of these devices is at least one order of magnitude higher than current metallic nano-antenna designs. The focal length of a lens built on such principle can also be adjusted by changing the wavelength of the incident light. All proposed embodiments can be embedded, for example, on a chip or at the end of an optical fiber.
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公开(公告)号：US10042091B2
公开(公告)日：2018-08-07
申请号：US14431544
申请日：2013-09-26
Applicant: Purdue Research Foundation
Inventor： Alexander Kildishev , Satoshi Ishii , Vladimir Shalaev
IPC: G02F1/03 , G02B3/08 , G02B1/00 , G02B3/00 , G02F1/225 , G02F1/365 , G02F1/39 , G02B5/00 , G02B6/122 , G02B6/26 , B82Y20/00
Abstract: A planar optical device, comprised of sets of nanometer-scale holes milled into a thin metal or ceramic film of subwavelength thickness serves to form arbitrary waveform of light. The holes form a pattern, preferrably rings, of various sizes in order to achieve a given phase front of light due to photonic effect. When designed as a lens, the device focuses incident light into a tight focal spot. In symmetric design, the focusing property of the device does not depend on the incident polarization angle. The lens can be manufactured based on high-throughput fabrication methods and easily integrated with a chip or placed at the end of an optical fiber.
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Patent Agency Ranking
公开(公告)号：US09784888B2
公开(公告)日：2017-10-10
申请号：US14434697
申请日：2013-10-09
Applicant: Purdue Research Foundation
Inventor： Gururaj Naik , Bivas Saha , Timothy Sands , Vladimir Shalaev , Alexandra Boltasseva
CPC classification number: G02B1/002 , B32B9/00 , B82Y20/00 , G02B5/008 , H01L51/5262 , Y10S977/761 , Y10T428/24975
Abstract: A titanium nitride-based metamaterial, and method for producing the same, is disclosed, consisting of ultrathin, smooth, and alternating layers of a plasmonic titanium nitride (TiN) material and a dielectric material, grown on a substrate to form a superlattice. The dielectric material is made of A1-xScxN, where ‘x’ ranges in value from 0.2 to 0.4. The layers of alternating material have sharp interfaces, and each layer can range from 1-20 nanometers in thickness. Metamaterials based on titanium TiN, a novel plasmonic building block, have many applications including, but not ‘limited to emission enhancers, computer security, etc. The use of nitrogen vacancy centers in diamond, and light emitting diode (LED) efficiency enhancement is of particular interest.
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公开(公告)号：US20190033496A1
公开(公告)日：2019-01-31
申请号：US16057130
申请日：2018-08-07
Applicant: Purdue Research Foundation
Inventor： Alexander Kildishev , Satoshi Ishii , Vladimir Shalaev
IPC: G02B3/08 , G02B1/00 , G02B3/00 , G02B5/00 , G02F1/225 , G02B6/122 , G02F1/365 , G02F1/39 , G02B6/26 , B82Y20/00
Abstract: A method of making an optical device including forming a plurality of holes with varying radii milled vertically into a film, wherein said holes form a pattern. The radius of each hole determines an effective refractive index for said hole. The effective refractive index modifies a phase and an intensity of an incoming electromagnetic radiation as the radiation propagates through said hole. The device is configured to be operating equally for each linearly polarized radiation simultaneously, wherein the each linearly polarized radiation is normally incident on the device.
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公开(公告)号：US20170235162A1
公开(公告)日：2017-08-17
申请号：US15209737
申请日：2016-07-13
Applicant: Purdue Research Foundation
Inventor： Amr Shaltout , Alexander Kildishev , Vladimir Shalaev
CPC classification number: G02F1/0063 , G02B1/002 , G02B3/0081 , G02B2207/101 , G02F1/0136 , G02F1/093 , G02F1/29 , G02F1/355 , G02F2202/30 , G02F2203/10 , G03H2001/0224
Abstract: A time-varying optical metasurface, comprising a plurality of modulated nano-antennas configured to vary dynamically over time. The metasurface may be implemented as part of an optical isolator, wherein the time-varying metasurface provides uni-directional light flow. The metasurface allows the breakage of Lorentz reciprocity in time-reversal. The metasurface may operate in a transmission mode or a reflection mode.
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公开(公告)号：US20150285953A1
公开(公告)日：2015-10-08
申请号：US14434697
申请日：2013-10-09
Applicant: PURDUE RESEARCH FOUNDATION
Inventor： Gururaj Viveka Naik , Bivas Saha , Timothy D. Sands , Vladimir Shalaev , Alexandra Boltasseva
CPC classification number: G02B1/002 , B32B9/00 , B82Y20/00 , G02B5/008 , H01L51/5262 , Y10S977/761 , Y10T428/24975
Abstract: A titanium nitride-based metamaterial, and method for producing the same, is disclosed, consisting of ultrathin, smooth, and alternating layers of a plasmonic titanium nitride (TiN) material and a dielectric material, grown on a substrate to form a superlattice. The dielectric material is made of A1-xScxN, where ‘x’ ranges in value from 0.2 to 0.4. The layers of alternating material have sharp interfaces, and each layer can range from 1-20 nanometers in thickness. Metamaterials based on titanium TiN, a novel plasmonic building block, have many applications including, but not ‘limited to emission enhancers, computer security, etc. The use of nitrogen vacancy centers in diamond, and light emitting diode (LED) efficiency enhancement is of particular interest.
Abstract translation: 公开了一种氮化钛基超材料及其制造方法，其由在衬底上生长以形成超晶格的等离子体氮化钛（TiN）材料和电介质材料的超薄，平滑和交替层组成。 介电材料由A1-xScxN制成，其中'x'的范围为0.2至0.4。 交替材料层具有尖锐的界面，每个层的厚度可以为1-20纳米。 基于钛TiN的超材料，一种新颖的等离子体结构单元，具有许多应用，包括但不限于发射增强剂，计算机安全性等。在金刚石和发光二极管（LED）中使用氮空位中心的效率提高是 特别感兴趣。
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公开(公告)号：US20150247960A1
公开(公告)日：2015-09-03
申请号：US14431544
申请日：2013-09-26
Applicant: PURDUE RESEARCH FOUNDATION
Inventor： Alexander Kildishev , Ishii Satoshi , Vladimir Shalaev
CPC classification number: G02B3/08 , B82Y20/00 , G02B1/002 , G02B1/005 , G02B3/0087 , G02B5/008 , G02B6/1225 , G02B6/1226 , G02B6/262 , G02B2207/101 , G02F1/2255 , G02F1/365 , G02F1/397 , G02F2203/06 , G02F2203/13 , G02F2203/50 , Y10S977/888
Abstract: A planar optical device, comprised of sets of nanometer-scale holes milled into a thin metal or ceramic film of subwavelength thickness serves to form arbitrary waveform of light. The holes form a pattern, preferrably rings, of various sizes in order to achieve a given phase front of light due to photonic effect. When designed as a lens, the device focuses incident light into a tight focal spot. In symmetric design, the focusing property of the device does not depend on the incident polarization angle. The lens can be manufactured based on high-throughput fabrication methods and easily integrated with a chip or placed at the end of an optical fiber.
Abstract translation: 研磨成亚波长厚度的薄金属或陶瓷膜的由纳米级孔组成的平面光学器件用于形成任意波形的光。 孔由于光子效应而形成各种尺寸的图案，优选的环，以便实现给定的光的相位前沿。 当设计为镜头时，设备会将入射光聚焦到紧焦点。 在对称设计中，器件的聚焦特性不取决于入射偏振角。 透镜可以基于高通量制造方法制造，并且可以容易地与芯片集成或放置在光纤端部。
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