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Purdue University News
Diamond Defects Enhance Single-Photon Emission
WEST LAFAYETTE, Ind., Jan. 14, 2015 — Nanodiamonds containing atomic-scale defects can enhance metamaterials’ emission of single photons — an important attribute of future quantum computers. A team at Purdue University, in cooperation with Russian researchers, coupled nanodiamonds with nitrogen vacancy centers with a metamaterial lattice made of titanium nitride (TiN) and aluminum scandium nitride (AlxSc1-xN). The metamaterial is pumped by a laser. “These results indicate that the brightness of the
Photoacoustics Exposes Arterial Plaques
WEST LAFAYETTE, Ind., Nov. 5, 2014 — Measuring ultrasound signals generated by a fast-pulsing laser could advance diagnosis of cardiovascular disease. A new technique called intravascular photoacoustic imaging takes precise 3-D images of plaques lining arteries and reveals the presence...
High-Speed, In Vivo Raman Technique Pinpoints Cholesterol
WEST LAFAYETTE, Ind., Sept. 9, 2014 — A new high-speed spectroscopy technique has helped pinpoint where cells store cholesterol, and could be used to study obesity and diabetes. Researchers at Purdue University used hyperspectral stimulated Raman scattering microscopy to map lipid...
Spectroscopy Measures Nanoscale Material Strain
LAFAYETTE, Ind., Aug. 28, 2014 — A new spectroscopy technique could lead to microelectronics that perform better under stress and heat. A team from Purdue University developed the technique, called nanomechanical Raman spectroscopy. Raman spectroscopy can provide information about...
4 Photonics Projects Get Defense Funding
WASHINGTON, June 3, 2014 — The U.S. Department of Defense has awarded funding totaling $28.3 million for four photonics graduate research projects under its Multidisciplinary University Research Initiative (MURI). Brief summaries of the projects follow. For further...
Goodman Prize Goes to Authors of Metamaterials Textbook
WEST LAFAYETTE, Ind., and ATLANTA, May 23, 2014 — Vladimir Shalaev of Purdue University and Wenshan Cai of the Georgia Institute of Technology have been named the 2014 recipients of the Joseph W. Goodman Book Writing Award. Their book, “Optical Metamaterials: Fundamentals and...
Hyperbolic Metamaterials Advance Practical Applications
WEST LAFAYETTE, Ind., May 14, 2014 — Optical imaging of objects as small as DNA strands could be possible using hyperbolic metamaterials. The ultrathin crystalline films act like metals when light passes through in one direction and like dielectrics when light passes in a perpendicular...
Nanocrystal Tags Aid Rapid Pathogen Detection
WEST LAFAYETTE, Ind., and SYDNEY, May 8, 2014 — Tunable nanoparticles could pave the way for screenings that identify thousands of target molecules simultaneously. A team from Purdue University and Macquarie University used tunable luminescent nanocrystals as tags, applying them to high-speed...
Plasmonic Probes Help Quantify Breast Cancer Gene Segments
WEST LAFAYETTE, Ind., April 25, 2014 — Hyperspectral imaging using plasmonic probes can ferret out a specific genetic telltale for breast cancer within individual cells, according to recent research from Purdue University. That genetic telltale is BRCA1, a tumor suppressor gene....
Ultracold Molecules Advance Quantum Computing
WEST LAFAYETTE, Ind., March 20, 2014 — Radical cooling could hold great potential for quantum computing and simulations. To that end, Purdue University researchers have created an ultracold molecule using lasers to remove the kinetic energy and to cool the atoms to -273 °C (-459...
Funding Furthers OnTarget Imaging Research
WEST LAFAYETTE, Ind., March 12, 2014 — Further development of optical imaging technology for cancer research is now possible, thanks to $15 million in funding recently awarded to OnTarget Labs.
Goetz Instrument Support Awards Announced
BOULDER, Colo., Feb. 20, 2014— Innovative research projects based on spectroscopy and remote sensing have been recognized by the Alexander Goetz Instrument Support Program awards for 2014. The awards program, now in its eighth year and supported by PANalytical Boulder (formerly...
Laser Sensor Speeds Up Salmonella Detection
WEST LAFAYETTE, Ind., Feb. 13, 2014 — A new laser sensor can identify salmonella bacteria in food samples as much as three times faster than conventional detection methods.
'Inverse Opal' Structure Enhances Solar Cell Efficiency
WEST LAFAYETTE, Ind., Jan. 23, 2014 — A technology called “photonic crystals” could increase the light-trapping capability of thin-film solar cells and help bring about lower-cost solar energy. Researchers from Purdue University’s Birck Nanotechnology Center and School...
Transparent electrode enables flexible solar cells
Aug 1, 2013 — A hybrid transparent electrode that overcomes the “electron-transport bottleneck” of polycrystalline thin films could pave the way for flexible solar cells and color monitors, head-up displays in car windshields and opto-electronic...
Speed Limit for Electrical Switching Revealed
MENLO PARK, Calif., July 31, 2013 — An optical laser pulse has shattered the ordered electronic structure in an insulating sample of magnetite, switching the material to electrically conducting in a picosecond (one-trillionth of a second). The discovery could lead to faster, more...
Fund Makes First Investment in Photonics Tech
BOSTON and MOSCOW, June 19, 2013 — A new venture capital fund has made its first round of investments in companies seeking to commercialize technology related to nanophotonics, metamaterials and quantum information processing. Quantum Wave Fund (QWave), a global venture capital fund...
’Temporal Cloaking’ for Communications
WEST LAFAYETTE, Ind., June 5, 2013 — An alternative “temporal cloaking” method that uses standard optical communications components has improved the time available for secure data transmission to nearly 46 percent, allowing digital data to be concealed at rates that could thwart...
Solar cells derived from trees
Jun 1, 2013 — Just as the leaves on trees capture sunlight and convert it to energy, so do solar cells – and now recyclable, sustainable and renewable photovoltaics can be made using natural substrates derived from trees. Organic solar cells have...
Solar cells derived from trees
Jun 1, 2013 — Just as the leaves on a tree capture sunlight and convert it to energy, so do solar cells – and now recyclable, sustainable and renewable photovoltaics can be made using natural substrates derived from trees. Organic solar cells have...
Transparent Electrode Key to Flexible Solar Cells
WEST LAFAYETTE, Ind., May 23, 2013 — A hybrid transparent electrode that overcomes the “electron-transport bottleneck” of thin films could pave the way for flexible solar cells and color monitors, head-up displays in car windshields and optoelectronics circuits for sensors and...
Tomato Yield Not Affected by LED-Lit Greenhouses
WEST LAFAYETTE, Ind., May 6, 2013 — LED-equipped greenhouses can grow the same number of off-season tomatoes as those outfitted with traditional lighting, but using a lot less energy, a new Purdue University study finds. The average tomato is shipped about 1500 miles from a warmer...
ReadingMate Lets You Read on the Treadmill
WEST LAFAYETTE, Ind., April 18, 2013 — Do you ever get bored running endless miles on a treadmill and wish that you could read while working out? Well, now you can, thanks to a new system that steadies text on a display so you can read it as you sweat through the miles.
Solar Cells Derived from Trees
ATLANTA, April 1, 2013 — Just as leaves capture sunlight and convert it to energy, so do solar cells, and now recyclable, sustainable and renewable photovoltaics can be made using natural substrates derived from trees.
Boltasseva Honored by MRS for Novel Optics
WARRENDALE, Pa., March 12, 2013 — Alexandra Boltasseva, a Purdue University assistant professor who developed novel materials for advanced plasmonic, metamaterial and transformation optics devices, is the recipient of the 2013 Materials Research Society’s (MRS) Outstanding Young...
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April 2024
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