Featured Research

from universities, journals, and other organizations

A Step Forward In Nanotechnology

Date:
September 24, 2001
Source:
University Of Michigan
Summary:
Nanotechnology is in the news. Forecasters paint a vision of microscopic machines that can fight viruses or alter the functioning of bodily systems, of power generators smaller than a penny, of entire medical laboratories in an area smaller than a credit card. The problem is, there is a huge gap between the devices we can design and those we can implement, given current technology. A technique that will greatly improve the study of nanostructures and help shorten the development time for quantum computers and similar devices has been demonstrated by a team of University of Michigan researchers.

ANN ARBOR --- Nanotechnology is in the news. Forecasters paint a vision of microscopic machines that can fight viruses or alter the functioning of bodily systems, of power generators smaller than a penny, of entire medical laboratories in an area smaller than a credit card. The problem is, there is a huge gap between the devices we can design and those we can implement, given current technology. A technique that will greatly improve the study of nanostructures and help shorten the development time for quantum computers and similar devices has been demonstrated by a team of University of Michigan researchers.

The methodology, which combines coherent nonlinear optical spectroscopy with low-temperature near-field microscopy, is featured in the Sept. 21 issue of Science. Authors of the paper are Profs. Bradford Orr and Duncan Steel, research fellow Jeffrey Guest, and graduate students Todd Stievater, Gang Chen, and Elizabeth Tabak, all of the Department of Physics. Dan Gammon and Scott Katzer of the Naval Research Laboratory also are co-authors.

As the study of fundamental physics and the development of nanotechnologies produces smaller and smaller nanostructures, there have been significant advances in material preparation techniques and in the growth of novel diagnostic and control capabilities. Coherent optical control and optical manipulation play a fundamental role in the functioning of many of these proposed devices. Unfortunately, the resolution available with traditional far-field optical techniques is not adequate to access the new devices. Near-field scanning optical microscopy expands the standard resolution limit, but often produces ambiguous results.

Using a technique which combines the direct optical probe and spectral selectivity of coherent nonlinear optical spectroscopy with the spatial selectivity of near-field microscopy, the U-M team was able to both optically induce and detect quantum coherence in an extended structure, with sub-wavelength resolution.

"This just puts us another step closer to closing the gap between our present-day capabilities and the sophisticated nanodevices and quantum computers of the future," Steel said. "The beauty of this technique is that it is applicable to any optically active system, which means it can easily be adapted in the ever-changing world of nano-optics and quantum-information technology."

The research study was funded by the Army Research Office, the Air Force Office of Scientific Research, and the Office of Naval Research. Steel also was partially funded by a Guggenheim Fellowship.


Story Source:

The above story is based on materials provided by University Of Michigan. Note: Materials may be edited for content and length.


Cite This Page:

University Of Michigan. "A Step Forward In Nanotechnology." ScienceDaily. ScienceDaily, 24 September 2001. <www.sciencedaily.com/releases/2001/09/010924061818.htm>.
University Of Michigan. (2001, September 24). A Step Forward In Nanotechnology. ScienceDaily. Retrieved September 30, 2014 from www.sciencedaily.com/releases/2001/09/010924061818.htm
University Of Michigan. "A Step Forward In Nanotechnology." ScienceDaily. www.sciencedaily.com/releases/2001/09/010924061818.htm (accessed September 30, 2014).

Share This



More Matter & Energy News

Tuesday, September 30, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Do Video Games Trump Brain Training For Cognitive Boosts?

Do Video Games Trump Brain Training For Cognitive Boosts?

Newsy (Sep. 29, 2014) More and more studies are showing positive benefits to playing video games, but the jury is still out on brain training programs. Video provided by Newsy
Powered by NewsLook.com
CERN Celebrates 60 Years of Science

CERN Celebrates 60 Years of Science

Reuters - Business Video Online (Sep. 29, 2014) CERN, the European Organisation for Nuclear Research, celebrates 60 years of bringing nations together through science. As Joanna Partridge reports from inside the famous science centre it's also planning to turn the Large Hadron Collider particle accelerator back on after an upgrade. Video provided by Reuters
Powered by NewsLook.com
This 'Invisibility Cloak' Is Simpler Than Most

This 'Invisibility Cloak' Is Simpler Than Most

Newsy (Sep. 28, 2014) Researchers from the University of Rochester have created a type of invisibility cloak with simple focal lenses. Video provided by Newsy
Powered by NewsLook.com
New Corvette Can Secretly Record Convos And Get You Arrested

New Corvette Can Secretly Record Convos And Get You Arrested

Newsy (Sep. 28, 2014) The 2015 Corvette features valet mode – which allows the owner to secretly record audio and video – but in many states that practice is illegal. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins