Purdue Research Foundation

Bae Systems Information and Electronic Systems Integration Inc.

Alexander V Kildishev

Vladimir M Shalaev

Alexandra Boltasseva

Urcan Guler

Zhaxylyk A Kudyshev

Alberto Naldoni

Satoshi Ishii

Alexei S Lagutchev

Amr Shaltout

Jingjing Liu

Andrey N Smolyaninov

Esteban Ernesto Marinero-Caceres

Steven Truitt Wereley

Justus Chukwunonso Ndukaife

Evgueni E Narimanov

Luca Mascaretti

Krishnakali Chaudhury

Shaimaa Ibrahim Azzam

Harsha Reddy

Amr Mohammad E Shaltout

Wenshan Cai

Jeong Eun Yoo

Sajid Choudhury

Patrik Schmuki

Xingjie Ni

Igor I Smolyaninov

Agbai Nnanna

Vladimir P Drachev

Radek Zboril

Simeon I Bogdanov

Demid Sychev

Zachariah Olson Martin

Gururaj Naik

Di Wang

Maowen Song

Sarah Nahar Chowdhury

Piotr Nyga

Agbai (George) A Nnanna

Stephán Kment

Xiaohui Xu

Ŝtêphán Kment

Donald Stocks

Radek Zbo{circumflex Over (r)}il

Vera N Smolyaninova

Uday K Chettiar

A method for producing a single photon source includes functionalizing a top surface of a plasmonic thin film to form a functionalized thin film, depositing a polymer on top of the functionalized thin film, lithographically patterning the polymer to form patterned functionalized sites, and targeting nanodiamond particles to the patterned functionalized sites.

Single photon source

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.

Machine learning assisted super resolution microscopy

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.

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.

Plasmonic metal nitride and transparent conductive oxide nanostructures for plasmon assisted catalysis

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.

Solar thermoplasmonic nanofurnaces and method for making and using same

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.

Optical device, method of using the same, and method of making the same

An optical sensor system, comprising refractory plasmonic elements that can withstand temperatures exceeding 2500&#xb0; 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.

Method of making a metamaterial device

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.

Tunable plasmonic color device and method of making the same

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.

Titanium nitride (TiN) nanofurnaces are fabricated in a method that involves anodization of a titanium (Ti) foil to form TiOnanocavities. After anodization, the TiOnanocavities are converted to TiN at 600&#xb0; 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&#xb0; 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.

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.

Sub-millimeter real-time circular dichroism spectrometer with metasurfaces

A device for producing a subwavelength hologram. The device comprises a metasurface layer attached to a substrate. The metasurface layer includes an array of plasmonic antennas that simultaneously encode both wavelength and phase information of light directed through the array to produce a hologram. The wavelength is determined by the size of the antennas, and the phase is determined by the orientation of the antennas.

Ultra-thin color phase hologram with metasurfaces

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.

Ultra-thin, planar, plasmonic metadevices

Growing community of inventors

West Lafayette, IN, United States of America

Alexander V Kildishev