Featured Research

from universities, journals, and other organizations

Flat spray-on optical lens created

Date:
May 23, 2013
Source:
University of British Columbia
Summary:
Engineers have made a breakthrough utilizing spray-on technology that could revolutionize the way optical lenses are made and used.

Kenneth Chau, University of British Columbia, is excited about the newly published research that explains how he and his colleagues developed a negative-index material that can be sprayed onto surfaces and act as a lens.
Credit: University of British Columbia

A University of British Columbia engineer and a team of U.S. researchers have made a breakthrough utilizing spray-on technology that could revolutionize the way optical lenses are made and used.

Kenneth Chau, an assistant professor in the School of Engineering at UBC's Okanagan campus, is a key investigator among colleagues at the National Institute of Standards and Technology in Maryland. Their work -- the development of a flat lens -- is published in the May 23 issue of the journal Nature.

Nearly all lenses -- whether in an eye, a camera, or a microscope -- are presently curved, which limits the aperture, or amount of light that enters.

"The idea of a flat lens goes way back to the 1960s when a Russian physicist came up with the theory," Chau says. "The challenge is that there are no naturally occurring materials to make that type of flat lens. Through trial and error, and years of research, we have come up with a fairly simple recipe for a spray-on material that can act as that flat lens."

The research team has developed a substance that can be affixed to surfaces like a glass slide and turn them into flat lenses for ultraviolet light imaging of biological specimens.

"Curved lenses always have a limited aperture," he explains. "With a flat lens, suddenly you can make lenses with an arbitrary aperture size -- perhaps as big as a football field."

While the spray-on, flat lens represents a significant advancement in technology, it is only an important first step, Chau says.

"This is the closest validation we have of the original flat lens theory," he says. "The recipe, now that we've got it working, is simple and cost-effective. Our next step is to extrapolate this technique further, explore the effect to the fullest, and advance it as far as we can take it."

The technology could change the way imaging devices like cameras and scanners are designed.


Story Source:

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


Journal Reference:

  1. Ting Xu, Amit Agrawal, Maxim Abashin, Kenneth J. Chau, Henri J. Lezec. All-angle negative refraction and active flat lensing of ultraviolet light. Nature, 2013; 497 (7450): 470 DOI: 10.1038/nature12158

Cite This Page:

University of British Columbia. "Flat spray-on optical lens created." ScienceDaily. ScienceDaily, 23 May 2013. <www.sciencedaily.com/releases/2013/05/130523101841.htm>.
University of British Columbia. (2013, May 23). Flat spray-on optical lens created. ScienceDaily. Retrieved July 29, 2014 from www.sciencedaily.com/releases/2013/05/130523101841.htm
University of British Columbia. "Flat spray-on optical lens created." ScienceDaily. www.sciencedaily.com/releases/2013/05/130523101841.htm (accessed July 29, 2014).

Share This




More Matter & Energy News

Tuesday, July 29, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Lithium Battery 'Holy Grail' Could Provide 4 Times The Power

Lithium Battery 'Holy Grail' Could Provide 4 Times The Power

Newsy (July 28, 2014) Stanford University published its findings for a "pure" lithium ion battery that could have our everyday devices and electric cars running longer. Video provided by Newsy
Powered by NewsLook.com
The Carbon Trap: US Exports Global Warming

The Carbon Trap: US Exports Global Warming

AP (July 28, 2014) AP Investigation: As the Obama administration weans the country off dirty fuels, energy companies are ramping-up overseas coal exports at a heavy price. (July 28) Video provided by AP
Powered by NewsLook.com
Shipping Crates Get New 'lease' On Life

Shipping Crates Get New 'lease' On Life

Reuters - Business Video Online (July 25, 2014) Shipping containers have been piling up as America imports more than it exports. Some university students in Washington D.C. are set to get a first-hand lesson in recycling. Their housing is being built using refashioned shipping containers. Lily Jamali reports. Video provided by Reuters
Powered by NewsLook.com
Europe's Highest Train Turns 80 in French Pyrenees

Europe's Highest Train Turns 80 in French Pyrenees

AFP (July 25, 2014) Europe's highest train, the little train of Artouste in the French Pyrenees, celebrates its 80th birthday. Duration: 01:05 Video provided by AFP
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:

More Coverage


The Better to See You With: Scientists Build Record-Setting Metamaterial Flat Lens

May 24, 2013 For the first time, scientists working at the National Institute of Standards and Technology (NIST) have demonstrated a new type of lens that bends and focuses ultraviolet (UV) light in such an ... read more
from the past week

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