Purdue Research Foundation

Alexandra Boltasseva

Vladimir M Shalaev

Alexander V Kildishev

Justus Chukwunonso Ndukaife

Urcan Guler

Agbai Nnanna

Zhaxylyk A Kudyshev

Esteban Ernesto Marinero-Caceres

Alberto Naldoni

Steven Truitt Wereley

Amr Shaltout

Aveek Dutta

Gururaj Naik

Demid Sychev

Zachariah Olson Martin

Jeong Eun Yoo

Sajid Choudhury

Patrik Schmuki

Krishnakali Chaudhury

Shaimaa Ibrahim Azzam

Harsha Reddy

Luca Mascaretti

Timothy David Sands

Alexei S Lagutchev

Simeon I Bogdanov

Radek Zboril

Stephán Kment

Bivas Saha

Xiaohui Xu

Alexander Senichev

Donald Stocks

Samuel Peana

Avanish Mishra

Ŝtêphán Kment

Radek Zbo{circumflex Over (r)}il

Omer Yesilyurt

Vahagn Mkhitaryan

Di Wang

Maowen Song

Sarah Nahar Chowdhury

Agbai (George) A Nnanna

Piotr Nyga

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.

Systems and methods for single-photon emission

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 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

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 system of writing to and reading from a magnetic nanostructure is disclosed which includes an opto-magnetic write arrangement including a polarizer configured to receive incident light and provide a circularly or linearly polarized light, wherein light polarization is controlled by the polarizer and its orientation with respect to polarization of the incident light, a nanomagnetic structure configured to receive the polarized light including a substrate, and a nanomagnetic stack including a nanomagnet, and a capping layer, wherein the nanomagnetic stack is configured to receive the polarized light and thereby switch orientation of a magnetic moment associated with the magnetic nanostructure whereby the magnetic moment direction specifies a bit value held in the magnetic structure, and a magnetic read arrangement, configured to receive and interpret an optical signal from the magnetic nanostructure indicating the magnetic moment orientation from the nanomagnetic stack.

All-optical write/read scheme for magnetic nanostructures

An apparatus for trapping and sensing nanoparticles using plasmonic nanopores, comprising a conductive transparent layer, a conductive film layer mounted to a substrate, the film layer comprising a plurality of nanopores for trapping nanoparticles contained in a fluid situated between the conductive transparent layer and the conductive film layer, and an electric field source connected between the transparent layer and the film layer.

System and method for sensing and trapping nanoparticles with plasmonic nanopores

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

A magneto-plasmonic nanostructure is disclosed. The structure includes a substrate, and a magneto-plasmonic stack, comprising a nano-sized plasmonic resonator, a nanomagnet, and a capping layer, wherein the nano-sized plasmonic resonator is configured to receive circularly polarized light at an intensity to thereby increase normal component of plasmon-generated opto-magnetic field, H, at least at the interface of one of i) the nano-sized plasmonic resonator and the nanomagnet, or ii) the nanomagnet and the capping layer, whereby the Hdirection is perpendicular to the rotational direction of the circularly polarized light and the nanomagnets in the magneto-plasmonic stack switches its magnetic moment in response to a change of the Hdirection in response to a change of the rotational direction of the circularly polarized light.

Surface-plasmon opto-magnetic field enhancement for all-optical magnetization switching

Metamaterial device and method of making the same

Growing community of inventors

West Lafayette, IN, United States of America

Alexandra Boltasseva