Featured Research

from universities, journals, and other organizations

Physics Advance Leads To A Better Understanding Of Optics At The Atomic Scale

Date:
April 30, 2008
Source:
North Carolina State University
Summary:
An advance by physicists improves our understanding of how light interacts with matter, and could make possible the development of new integrated-circuit technologies that result in faster computers that use less energy.

An advance by North Carolina State University physicists improves our understanding of how light interacts with matter, and could make possible the development of new integrated-circuit technologies that result in faster computers that use less energy.

Distinguished University Professor Dr. David Aspnes and post-doctoral Research Associate Dr. Eric Adles published a paper in the April 15 issue of Physical Review B on second-harmonic generation – or how wavelengths of light are shortened upon interaction with materials. The editors highlighted the work as an exceptional paper in the issue.

Aspnes explains that the research could be used to further our understanding of how materials bond to each other – such as silicon and next-generation insulating materials for integrated-circuit technologies. Application of this advance could aid researchers in selecting and processing materials that bond to silicon more uniformly, resulting in faster computers that utilize energy more efficiently.

Adles says the research allows scientists and engineers to use nonlinear-optical spectroscopy – which examines light reflected, absorbed or produced by a substance to determine its physical properties – to obtain more accurate information on a substance at the atomic scale. For example, the research could be used to get better data on the physical properties of the "interface" – the one-atom-thick layer where two materials bond to each other. Essentially, Adles says, the results provide a "key" that can be used by researchers to analyze spectroscopy data. Previously, scientists could collect such data on the interface, but had no means of interpreting it correctly on the atomic scale.

Aspnes says the goal of the research was to "improve our understanding of how things work," but notes that it also gives others the tools to better analyze data and therefore gives manufacturers and industry scientists the opportunity to make better decisions about how best to move forward.

Aspnes is a professor of physics at NC State and a member of the National Academy of Sciences.

Journal reference: Drs. Eric J. Adles and David E. Aspnes, North Carolina State University. "Application of the anisotropic bond model to second-harmonic generation from amorphous media." Physical Review B, April 15, 2008


Story Source:

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


Cite This Page:

North Carolina State University. "Physics Advance Leads To A Better Understanding Of Optics At The Atomic Scale." ScienceDaily. ScienceDaily, 30 April 2008. <www.sciencedaily.com/releases/2008/04/080428164259.htm>.
North Carolina State University. (2008, April 30). Physics Advance Leads To A Better Understanding Of Optics At The Atomic Scale. ScienceDaily. Retrieved October 23, 2014 from www.sciencedaily.com/releases/2008/04/080428164259.htm
North Carolina State University. "Physics Advance Leads To A Better Understanding Of Optics At The Atomic Scale." ScienceDaily. www.sciencedaily.com/releases/2008/04/080428164259.htm (accessed October 23, 2014).

Share This



More Matter & Energy News

Thursday, October 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Chameleon Camouflage to Give Tanks Cloaking Capabilities

Chameleon Camouflage to Give Tanks Cloaking Capabilities

Reuters - Innovations Video Online (Oct. 22, 2014) — Inspired by the way a chameleon changes its colour to disguise itself; scientists in Poland want to replace traditional camouflage paint with thousands of electrochromic plates that will continuously change colour to blend with its surroundings. The first PL-01 concept tank prototype will be tested within a few years, with scientists predicting that a similar technology could even be woven into the fabric of a soldiers' clothing making them virtually invisible to the naked eye. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Jet Sales Lift Boeing Profit 18 Pct.

Jet Sales Lift Boeing Profit 18 Pct.

Reuters - Business Video Online (Oct. 22, 2014) — Strong jet demand has pushed Boeing to raise its profit forecast for the third time, but analysts were disappointed by its small cash flow. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com
Internet of Things Aims to Smarten Your Life

Internet of Things Aims to Smarten Your Life

AP (Oct. 22, 2014) — As more and more Bluetooth-enabled devices are reaching consumers, developers are busy connecting them together as part of the Internet of Things. (Oct. 22) Video provided by AP
Powered by NewsLook.com
What Is Magic Leap, And Why Is It Worth $500M?

What Is Magic Leap, And Why Is It Worth $500M?

Newsy (Oct. 22, 2014) — Magic Leap isn't publicizing much more than a description of its product, but it’s been enough for Google and others to invest more than $500M. 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