- About Us
- Career Center
- Nano-Social Network
- Nano Consulting
- My Account
Producing optical images at resolutions as low as one nanometer is the goal of Virginia Tech College of Engineering < http://www.eng.vt.edu/ > researcher Yong Xu, who has received a National Science Foundation (NSF) Faculty Early Career Development Program (CAREER) Award.
Xu, an assistant professor of electrical and computer engineering, recently secured the five-year CAREER grant, which is worth $400,000 and is NSF's most prestigious award for creative junior faculty who are considered likely to become academic leaders of the future.
"The resolution of most optical microscopes is restricted by the so-called 'diffraction limit,' which means we cannot produce optical images with resolutions higher than a few hundred nanometers," Xu said. "Currently, the most advanced optical microscope can achieve a resolution only as low as 50 nanometers."
In the field of nanotechnology, researchers are discovering ways to arrange atoms into unique structures on the molecular scale. Xu is attempting to produce an optical microscope that can observe nanostructures at a resolution of one nanometer - which is equal in size to approximately one-billionth of a meter, or the diameter of four atoms.
In addition to achieving a breakthrough in arranging nanostructures, Xu hopes that his research will lead to observation of the "vacuum field" at a resolution of one nanometer.
"Vacuum field refers to the tiny amount of electric field fluctuations that can exist in the absence of any sources such as electrons or atoms," Xu explained. "Even though vacuum field cannot be directly measured, without it no light source can emit light. Observing the vacuum field at one nanometer resolution would help scientists solve one of the few remaining mysteries of quantum electrodynamics."
All of this, Xu believes, can ultimately lead to chip-scale quantum information processing and can help boost the pace of discovery in nanophotonics research and engineering.
Every CAREER project includes an educational component, and Xu will help develop a nanophotonics education program at Virginia Tech. He also plans to mentor female and African American students at the university and in local high schools, with the aim of encouraging their participation in nanophotonics research and engineering.
Xu, who is affiliated with Virginia Tech's Center for Photonics Technology < http://www.ee.vt.edu/~photonics > , is investigating a number of related areas, including the development of nanoscale optical sensors for chemical and biological applications. He holds a patent on semiconductor surface lenses and shaped structures and has a patent pending in the area of efficient electro-optical modulation.
Before coming to Virginia Tech in 2004, Xu was a postdoctoral scholar at the California Institute of Technology, where he completed his Ph.D. in physics in 2001. He earned his bachelor's degree in applied physics with a minor in mathematics at Tsinghia University in Beijing, China.
About Virginia Tech
The College of Engineering at Virginia Tech is internationally recognized for its excellence in 14 engineering disciplines and computer science. The college's 5,500 undergraduates benefit from an innovative curriculum that provides a "hands-on, minds-on" approach to engineering education, complementing classroom instruction with two unique design-and-build facilities and a strong Cooperative Education Program. With more than 50 research centers and numerous laboratories, the college offers its 1,900 graduate students opportunities in advanced fields of study such as biomedical engineering, state-of-the-art microelectronics, and nanotechnology.
For more information, please click here
Copyright © Virginia TechIf you have a comment, please Contact us.
Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.
|Related News Press|
Pioneering research boosts graphene revolution November 17th, 2015
Iran Signs MoU to Export Nanodevices to China November 9th, 2015
MIT mathematicians identify limits to heat flow at the nanoscale: New formula identifies limits to nanoscale heat transfer, may help optimize devices that convert heat to electricity November 25th, 2015
Physicists explain the unusual behavior of strongly disordered superconductors: Using a theory they developed previously, the scientists have linked superconducting carrier density with the quantum properties of a substance November 25th, 2015
Scientists 'see' detailed make-up of deadly toxin for the first time: Exciting advance provides hope for developing novel potential method of treating pneumococcal diseases such as bacterial pneumonia, meningitis and septicaemia November 25th, 2015
Production of Nanocapsules Containing Omega-3 Powder in Iran November 24th, 2015
Using light-force to study single molecules November 23rd, 2015
Breakthrough allows tracking of single molecules in 3-D with nanoscale accuracy:New method builds on Nobel Prize-winning technique, with exciting implications for understanding the inner workings of cells and neurons November 23rd, 2015
UCLA nanoscientists develop safer, faster way to remove pollutants from water November 23rd, 2015
New EU project designed to link diagnosis and treatment of diseases over the long term: Joint research project aims at the improvement of companion diagnostics and therapy of tumor diseases November 23rd, 2015
GLOBALFOUNDRIES Receives Quality Award from INOVA Semiconductors GmbH November 20th, 2015
New method developed to predict response to nanotherapeutics: Taking a precision medicine approach to nanomedicine, researchers use MR imaging with magnetic nanoparticles to predict which tumors may be more responsive to therapeutic nanoparticles November 18th, 2015
Valley current control shows way to ultra-low-power devices November 16th, 2015