Patents by Inventor Vladimir M. Shalaev
Vladimir M. Shalaev has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 11971576Abstract: A method for producing a single photon source includes lithographically patterning a polymer on top of a plasmonic thin film, functionalizing top surfaces of the plasmonic thin film and the polymer, removing the polymer to form patterned functionalized sites on the top surface of the plasmonic thin film surface, and depositing nanodiamond particles to the patterned functionalized sites.Type: GrantFiled: December 5, 2022Date of Patent: April 30, 2024Assignee: Purdue Research FoundationInventors: Urcan Guler, Alexander Kildishev, Vladimir M. Shalaev, Alexei S. Lagutchev, Andrey N. Smolyaninov
-
Publication number: 20240045002Abstract: A nanodevice provides for electric-field control of magnon-QSD interactions. The nanodevice includes a ferroelectric substrate, a ferromagnetic material disposed over the ferroelectric substrate, and a nanodiamond including an ensemble of nitrogen-vacancy (NV) spins, each NV magnetically interfacing with the ferromagnetic material. An electric field is measured by applying a voltage across the ferroelectric substrate and the ferromagnetic material, changing a magnon excitation spectrum of the ferromagnetic material with respect to an electron spin resonance frequency of the ensemble of NV spins, and measuring a relaxation rate of the ensemble of NV spins.Type: ApplicationFiled: October 13, 2023Publication date: February 8, 2024Applicant: Purdue Research FoundationInventors: Vladimir M. Shalaev, Pramey Upadhyaya, Abhishek Bharatbhai Solanki, Simeon I. Bogdanov, Yong P. Chen, Mohammad Mushfiqur Rahman, Avinash Rustagi
-
Patent number: 11808955Abstract: A nanostructured material system for efficient collection of photo-excited carriers is provided. They system comprises a plurality of plasmonic metal nitride core material elements coupled to a plurality of semiconductor material elements. The plasmonic nanostructured elements form ohmic junctions at the surface of the semiconductor material or at close proximity with the semiconductor material elements. A nanostructured material system for efficient collection of photo-excited carriers is also provided, comprising a plurality of plasmonic transparent conducting oxide core material elements coupled to a plurality of semiconductor material elements. The field enhancement, local temperature increase and energized hot carriers produced by nanostructures of these plasmonic material systems play enabling roles in various chemical processes. They induce, enhance, or mediate catalytic activities in the neighborhood when excited near the resonance frequencies.Type: GrantFiled: July 7, 2022Date of Patent: November 7, 2023Assignee: Purdue Research FoundationInventors: Urcan Guler, Alberto Naldoni, Alexander V. Kildishev, Alexandra Boltasseva, Vladimir M. Shalaev
-
Patent number: 11807950Abstract: A thermoplasmonic device includes a titanium film and a plurality of titanium nitride tube elements disposed on the titanium film. Each of the titanium nitride tube elements includes an open top and a titanium nitride bottom. Each of the titanium nitride tube elements has titanium nitride tubular middle portion that extends from the open top to the titanium nitride bottom.Type: GrantFiled: May 2, 2022Date of Patent: November 7, 2023Assignee: Purdue Research FoundationInventors: Vladimir M. Shalaev, Zhaxylyk Kudyshev, Alexandra Boltasseva, Alberto Naldoni, Alexander Kildishev, Luca Mascaretti, {hacek over (S)}t{hacek over (e)}phán Kment, Radek Zbo{hacek over (r)}il, Jeong Eun Yoo, Patrik Schmuki
-
Patent number: 11802921Abstract: A nanodevice provides for electric-field control of magnon-QSD interactions. The nanodevice includes a ferroelectric substrate, a ferromagnetic material disposed over the ferroelectric substrate, and a nanodiamond including an ensemble of nitrogen-vacancy (NV) spins, each NV magnetically interfacing with the ferromagnetic material. An electric field is measured by applying a voltage across the ferroelectric substrate and the ferromagnetic material, changing a magnon excitation spectrum of the ferromagnetic material with respect to an electron spin resonance frequency of the ensemble of NV spins, and measuring a relaxation rate of the ensemble of NV spins.Type: GrantFiled: November 30, 2021Date of Patent: October 31, 2023Assignee: Purdue Research FoundationInventors: Vladimir M. Shalaev, Pramey Upadhyaya, Abhishek Bharatbhai Solanki, Simeon I. Bogdanov, Yong P. Chen, Mohammad Mushfiqur Rahman, Avinash Rustagi
-
Patent number: 11733507Abstract: An optical device, wherein the optical device includes a dielectric layer over a mirror layer. The optical device further includes a plurality of plasmonic nanoparticles over the dielectric layer. Additionally, the optical device includes a protective layer over the plurality of plasmonic nanoparticles.Type: GrantFiled: February 19, 2020Date of Patent: August 22, 2023Assignee: Purdue Research FoundationInventors: Piotr Nyga, Alexander V. Kildishev, Sarah Nahar Chowdhury, Alexandra Boltasseva, Zhaxylyk Kudyshev, Vladimir M. Shalaev
-
Patent number: 11726233Abstract: An optical sensor system, comprising refractory plasmonic elements that can withstand temperatures exceeding 2500° C. in chemically aggressive and harsh environments that impose stress, strain and vibrations. A plasmonic metamaterial or metasurface, engineered to have a specific spectral and angular response, exhibits optical reflection characteristics that are altered by varying physical environmental conditions including but not limited to temperature, surface chemistry or elastic stress, strain and other types of mechanical load. The metamaterial or metasurface comprises a set of ultra-thin structured layers with a total thickness of less than tens of microns that can be deployed onto surfaces of devices operating in harsh environmental conditions. The top interface of the metamaterial or metasurface is illuminated with a light source, either through free space or via an optical fiber, and the reflected signal is detected employing remote detectors.Type: GrantFiled: March 31, 2020Date of Patent: August 15, 2023Assignee: Purdue Research FoundationInventors: Urcan Guler, Alexander V. Kildishev, Krishnakali Chaudhury, Shaimaa Ibrahim Azzam, Esteban E. Marinero-Caceres, Harsha Reddy, Alexandra Boltasseva, Vladimir M. Shalaev
-
Patent number: 11698460Abstract: A laser beam steering system is disclosed. The system includes a laser source which produces a pulsed laser light beam with a frequency comb spectrum, a metasurface configured to i) receive the pulsed laser, ii) generate a diffracted pulsed laser output at different frequencies with a beam at a center frequency normal to the metasurface, and iii) directing light at different frequencies onto different foci at a focal plane, light propagating from the focal plane leads to generation of one or more optical beams that are controlled in space and time.Type: GrantFiled: April 17, 2018Date of Patent: July 11, 2023Assignees: Purdue Research Foundation, BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITYInventors: Amr Mohammad E. A. Shaltout, Vladimir M. Shalaev, Mark L. Brongersma
-
Patent number: 11656386Abstract: A plasmonic system is disclosed. The system includes at least one polarizer that is configured to provide at least one linearly polarized broadband light beam, an anisotropic plasmonic metasurface (APM) assembly having a plurality of nanoantennae each having a predetermined orientation with respect to a global axis representing encoded digital data, the APM assembly configured to receive the at least one linearly polarized broadband light beam and by applying localized surface plasmon resonance reflect light with selectable wavelengths associated with the predetermined orientations of the nanoantennae, and at least one analyzer that is configured to receive the reflected light with selectable wavelength, wherein the relative angles between each of the at least one analyzers and each of the at least one polarizers are selectable with respect to the global axis, thereby allowing decoding of the digital data.Type: GrantFiled: April 7, 2021Date of Patent: May 23, 2023Assignee: Purdue Research FoundationInventors: Alexander V. Kildishev, Di Wang, Zhaxylyk A. Kudyshev, Maowen Song, Alexandra Boltasseva, Vladimir M. Shalaev
-
Publication number: 20230101210Abstract: A method for producing a single photon source includes lithographically patterning a polymer on top of a plasmonic thin film, functionalizing top surfaces of the plasmonic thin film and the polymer, removing the polymer to form patterned functionalized sites on the top surface of the plasmonic thin film surface, and depositing nanodiamond particles to the patterned functionalized sites.Type: ApplicationFiled: December 5, 2022Publication date: March 30, 2023Applicant: Purdue Research FoundationInventors: Urcan Guler, Alexander Kildishev, Vladimir M. Shalaev, Alexei S. Lagutchev, Andrey N. Smolyaninov
-
Publication number: 20220397702Abstract: An optical sensor system, comprising refractory plasmonic elements that can withstand temperatures exceeding 2500° C. in chemically aggressive and harsh environments that impose stress, strain and vibrations. A plasmonic metamaterial or metasurface, engineered to have a specific spectral and angular response, exhibits optical reflection characteristics that are altered by varying physical environmental conditions including but not limited to temperature, surface chemistry or elastic stress, strain and other types of mechanical load. The metamaterial or metasurface comprises a set of ultra-thin structured layers with a total thickness of less than tens of microns that can be deployed onto surfaces of devices operating in harsh environmental conditions. The top interface of the metamaterial or metasurface is illuminated with a light source, either through free space or via an optical fiber, and the reflected signal is detected employing remote detectors.Type: ApplicationFiled: March 31, 2020Publication date: December 15, 2022Applicant: Purdue Research FoundationInventors: Urcan Guler, Alexander V. Kildishev, Krishnakali Chaudhury, Shaimaa Azzam, Esteban E. Marinero-Caceres, Harsha Reddy, Alexandra Boltasseva, Vladimir M. Shalaev
-
Patent number: 11520105Abstract: The invention related to single photon emission systems based on nano-diamonds. Single-photon sources have a broad range of applications in quantum communication, quantum computing and quantum metrology.Type: GrantFiled: November 5, 2015Date of Patent: December 6, 2022Assignee: Purdue Research FoundationInventors: Urcan Guler, Alexander V Kildishev, Vladimir M Shalaev, Alexei S. Lagutchev, Andrey N. Smolyaninov
-
Publication number: 20220350057Abstract: A nanostructured material system for efficient collection of photo-excited carriers is provided. They system comprises a plurality of plasmonic metal nitride core material elements coupled to a plurality of semiconductor material elements. The plasmonic nanostructured elements form ohmic junctions at the surface of the semiconductor material or at close proximity with the semiconductor material elements. A nanostructured material system for efficient collection of photo-excited carriers is also provided, comprising a plurality of plasmonic transparent conducting oxide core material elements coupled to a plurality of semiconductor material elements. The field enhancement, local temperature increase and energized hot carriers produced by nanostructures of these plasmonic material systems play enabling roles in various chemical processes. They induce, enhance, or mediate catalytic activities in the neighborhood when excited near the resonance frequencies.Type: ApplicationFiled: July 7, 2022Publication date: November 3, 2022Applicant: Purdue Research FoundationInventors: Urcan Guler, Alberto Naldoni, Alexander V. Kildishev, Alexandra Boltasseva, Vladimir M. Shalaev
-
Publication number: 20220333266Abstract: A thermoplasmonic device includes a titanium film and a plurality of titanium nitride tube elements disposed on the titanium film. Each of the titanium nitride tube elements includes an open top and a titanium nitride bottom. Each of the titanium nitride tube elements has titanium nitride tubular middle portion that extends from the open top to the titanium nitride bottom.Type: ApplicationFiled: May 2, 2022Publication date: October 20, 2022Inventors: Vladimir M. Shalaev, Zhaxylyk Kudyshev, Alexandra Boltasseva, Alberto Naldoni, Alexander Kildishev, Luca Mascaretti, Stêphán Kment, Radek Zboril, Jeong Eun Yoo, Patrik Schmuki
-
Publication number: 20220317335Abstract: A photon emitter includes a multi-layer film. The multi-layer film includes a first material layer and a second material layer, and the multi-layer film includes an interface surface between the first and second material layers. The first material layer includes silicon nitride. The multi-layer film is formed by positioning the silicon nitride over the second material layer and energetically activating the combination of the first material layer and the second material layer. The interface surface is operable to emit single photons.Type: ApplicationFiled: April 5, 2022Publication date: October 6, 2022Inventors: Vladimir M. Shalaev, Alexandra Boltasseva, Alexei Lagutchev, Alexander Senichev, Zachariah O. Martin, Demid Sychev, Samuel Peana, Xiaohui Xu
-
Patent number: 11385386Abstract: A nanostructured material system for efficient collection of photo-excited carriers is provided. They system comprises a plurality of plasmonic metal nitride core material elements coupled to a plurality of semiconductor material elements. The plasmonic nanostructured elements form ohmic junctions at the surface of the semiconductor material or at close proximity with the semiconductor material elements. A nanostructured material system for efficient collection of photo-excited carriers is also provided, comprising a plurality of plasmonic transparent conducting oxide core material elements coupled to a plurality of semiconductor material elements. The field enhancement, local temperature increase and energized hot carriers produced by nanostructures of these plasmonic material systems play enabling roles in various chemical processes. They induce, enhance, or mediate catalytic activities in the neighborhood when excited near the resonance frequencies.Type: GrantFiled: June 30, 2017Date of Patent: July 12, 2022Assignee: Purdue Research FoundationInventors: Urcan Guler, Alberto Naldoni, Alexander Kildishev, Alexandra Boltasseva, Vladimir M. Shalaev
-
Publication number: 20220179244Abstract: 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.Type: ApplicationFiled: July 28, 2021Publication date: June 9, 2022Applicant: Purdue Research FoundationInventors: Amr Mohammad E. Shaltout, Alexander V. Kildishev, Vladimir M. Shalaev
-
Publication number: 20220171000Abstract: A nanodevice provides for electric-field control of magnon-QSD interactions. The nanodevice includes a ferroelectric substrate, a ferromagnetic material disposed over the ferroelectric substrate, and a nanodiamond including an ensemble of nitrogen-vacancy (NV) spins, each NV magnetically interfacing with the ferromagnetic material. An electric field is measured by applying a voltage across the ferroelectric substrate and the ferromagnetic material, changing a magnon excitation spectrum of the ferromagnetic material with respect to an electron spin resonance frequency of the ensemble of NV spins, and measuring a relaxation rate of the ensemble of NV spins.Type: ApplicationFiled: November 30, 2021Publication date: June 2, 2022Applicant: Purdue Research FoundationInventors: Vladimir M. Shalaev, Pramey Upadhyaya, Abhishek Bharatbhai Solanki, Simeon I. Bogdanov, Yong P. Chen, Mohammad Mushfiqur Rahman, Avinash Rustagi
-
Patent number: 11319640Abstract: Titanium nitride (TiN) nanofurnaces are fabricated in a method that involves anodization of a titanium (Ti) foil to form TiO2 nanocavities. After anodization, the TiO2 nanocavities are converted to TiN at 600° C. under ammonia flow. The resulting structure is an array of refractory (high-temperature stable) subwavelength TiN cylindrical cavities that operate as plasmonic nanofurnaces capable of reaching temperatures above 600° C. under moderate concentrated solar irradiation. The nanofurnaces show near-unity solar absorption in the visible and near infrared spectral ranges and a maximum thermoplasmonic solar-to-heat conversion efficiency of 68 percent.Type: GrantFiled: May 3, 2020Date of Patent: May 3, 2022Assignee: Purdue Research FoundationInventors: Vladimir M. Shalaev, Zhaxylyk Kudyshev, Alexandra Boltasseva, Alberto Naldoni, Alexander Kildishev, Luca Mascaretti, Ŝtêphán Kment, Radek Zbo{circumflex over (r)}il, Jeong Eun Yoo, Patrik Schmuki
-
Patent number: 11193829Abstract: A circular dichroism spectrometer which comprises a metasurface. The metasurface has a plurality of anisotropic antennas configured to simultaneously spatially separate LCP and RCP spectral components from an incoming light beam. An optical detector array is included which detects the LCP and RCP spectral components. A transparent medium is situated between the metasurface and the optical detector array.Type: GrantFiled: July 20, 2020Date of Patent: December 7, 2021Assignee: Purdue Research FoundationInventors: Amr Mohammad E Shaltout, Alexander V. Kildishev, Vladimir M Shalaev, Jingjing Liu