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Purdue News
Bending Light at will with Transformation Optics
May 10, 2010 — Invisibility cloaks get all the publicity, but they may just be the beginning if the promise of transformation optics can be realized. The discipline could lead to smaller photonic and electronic devices and more cost-competitive solar cells – in addition to those long-sought-after invisibility cloaks. Achieving these and other advances assumes that the challenges confronting transformation optics can be successfully overcome. Chief among these are dealing with losses and building ...
For lasers, small and thin are in
NORFOLK, Va. – Lasers just keep getting smaller and smaller: Recently, only a couple of months after the report of the world’s thinnest laser, the world’s smallest laser was announced. Both developments barely precede the 50th anniversary of the laser, which will...
Cloak has Tapered Waveguide
WEST LAFAYETTE, Ind., May 20, 2009 -- Using a specially tapered optical waveguide instead of exotic metamaterials that require complex nanofabrication, researchers have created a simplified invisibility cloak that, unlike previous ones, works for all colors of the visible spectrum. The...
Light Positions Particles
WEST LAFAYETTE, Ind., Dec. 3, 2008 -- Light created by lasers and holograms has been used to precisely position many tiny particles within seconds. The technique has the potential to become a new tool for analyzing biological samples or creating devices using nanoassembly. The...
Sonofusion Scholar Sanctioned
WEST LAFAYETTE, Ind., Sept. 4, 2008 -- A Purdue University professor found to have committed research misconduct will remain on the faculty but has been stripped of his named professorship, the school announced.In addition to losing his title as Arden L. Bement Jr. Professor of Nuclear...
Flexible Display Flaw Fixed
WEST LAFAYETTE, Ind., July 28, 2008 -- A critical flaw to producing transistors for flexible displays from networks of carbon nanotubes -- namely that the metallic nanotubes in the network can cause short circuits -- has been overcome by changing the way such nanotube circuits are made....
LEDs Created on Silicon
WEST LAFAYETTE, Ind., July 21, 2008 -- By using inexpensive silicon wafers instead of pricey sapphire as a foundation for creating LEDs, researchers said they have overcome a major obstacle keeping solid-state lighting from becoming more widely used. Solid-state lighting is about...
Purdue Panel Finds Misconduct
WEST LAFAYETTE, Ind., July 18, 2008 -- A Purdue University panel has found that two allegations against a scientist who claims to have achieved "tabletop" fusion in collapsing bubbles constitute research misconduct. Purdue has been investigating the research and conduct of nuclear...
Hybrid Atom Identified
WEST LAFAYETTE, Ind., June 27, 2008 -- Experiments with nanoscale transistors by an international team have led to the identification of a hybrid atom that is half natural, half man-made and could be used to develop quantum computers. "Up to now large-scale quantum computing has been...
Microdevice to Track Tumors
WEST LAFAYETTE, Ind., April 11, 2008 -- A wireless, needle-like injectable device has been designed to more effectively kill tumors by telling doctors the precise dose of radiation received and the exact position of tumors during treatment. Babak Ziaie, an associate professor in the...
Nanowires Drive OLED Display
WEST LAFAYETTE, Ind., April 2, 2008 -- A new class of transparent transistors and circuits created from nanowires could one day be used in applications such as electronic paper, flexible color monitors and "head-up" displays in car windshields. Nanowires, tiny cylindrical structures...
MEMS Center Awarded $17M
WEST LAFAYETTE, Ind., March 11, 2008 -- The National Nuclear Security Administration (NNSA) will award $17 million over the next five years to research that aims to make microelectromechanical systems (MEMS) more reliable and durable for commercial and defense applications. The...
Method Predicts Droplet Size
WEST LAFAYETTE, Ind., Jan. 10, 2008 -- Chemical engineers have developed a method of precisely predicting the size of droplets formed from a liquid subjected to an electric field, an advance that could have applications in areas ranging from manufacturing to medical diagnostics. The...
Model Evaluates Biosensors
WEST LAFAYETTE, Ind., Jan. 7, 2008 -- A new modeling technique explains for the first time why a single nanotube performs better than sensors containing several nanotubes or flat planar sensors and refutes a popular explanation for why smaller sensors work better than larger...
Bowman to Head Purdue's School of Materials Engineering
Dec 14, 2007 — Keith J. Bowman has been appointed head of Purdue University’s School of Materials Engineering, effective Dec. 31. Bowman, a professor of materials engineering with another appointment in the Department of Engineering Education, replaces Alexander...
Purdue Gets Nano Grant
WEST LAFAYETTE, Ind., Sept. 20, 2007 -- Purdue University's Network for Computational Nanotechnology has received a five-year, $18.25 million grant from the National Science Foundation (NSF) to support the US National Nanotechnology Initiative with expanded capabilities and services for...
Pulses Shaped at Fs Frequency
WEST LAFAYETTE, Ind., Aug. 1, 2007 -- Engineers have finely controlled the spectral properties of ultrafast light pulses, a step toward creating advanced sensors, more powerful communications technologies and more precise laboratory instruments. The laser pulses could be likened to...
Nanomedical Advances Sought
WEST LAFAYETTE, Ind., & SEOUL, South Korea, July 10, 2007 -- A new nine-year collaboration between scientists in the US and South Korea will combine new imaging, biosensing and nanomedical techniques in an effort to advance medical diagnosis and treatment to the molecular level. Research teams from Purdue...
Astrophysicist Named Purdue's 1st Woman President
WEST LAFAYETTE, Ind., May 8, 2007 -- An internationally recognized astrophysicist was named yesterday as the 11th president of Purdue University and the first woman to hold the post. Following a seven-month search, France Córdova was appointed by Purdue's board of trustees Monday...
’Optical Cloaking’ Design Created for Invisibility
WEST LAFAYETTE, Ind., April 3, 2007 -- Nanotechnology has been used to take a first step toward creating an "optical cloaking" device that could render objects invisible by guiding light around anything placed inside this "cloak." Purdue University engineers, following mathematical...
Holography Helps Measure Drug Action in Cells
WEST LAFAYETTE, Ind., March 26, 2007 -- Using a laser and the same microchip found in digital cameras, a new digital holographic imaging system peers inside tumor cells and produces real-time, 3-D images that can be used to measure response to anti-cancer drugs. The device also may have...
Growing Nanotubes on Silicon a Base for Nanoelectronics
WEST LAFAYETTE, Ind., Aug. 2, 2006 — Engineers have developed a technique to grow individual carbon nanotubes vertically on top of a silicon wafer, a step toward using nanotubes to make advanced electronics, wireless devices and sensors by stacking circuits and components in...
Satellite Sensing System Works in Cells
WEST LAFAYETTE, Ind., May 23, 2006 -- Using the same multispectral analysis method that enables satellites to study the Earth's surface, Purdue University researchers have developed a new system that quickly determines the composition of cells and tissue for medical diagnostics and...
Purdue Takes Rube Goldberg Title
Apr 3, 2006 — WEST LAFAYETTE, Ind., April 3, 2006 -- The Purdue Society of Professional Engineers defended its national title in inefficiency and complexity with a machine that shreds five sheets of paper in 215 steps, the winning entry in the 18th National Rube...
Purdue Develops Portable Analysis System
Mar 21, 2006 — WEST LAFAYETTE, Ind., March 20, 2006 -- Purdue University researchers have developed a new, portable ultrafast chemical analysis system with potential applications ranging from sniffing luggage for explosive residues to detecting molecular disease...
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May 2024
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