Featured Research

from universities, journals, and other organizations

Single-cycle infrared light pulses

Date:
May 17, 2010
Source:
Optical Society of America
Summary:
A major reason for wanting shorter light pulses is that more data can be encoded within a signal lasting a certain interval of time. Shorter pulses would allow more data to be sent down an optical fiber, for example. Another important scientific use of very short pulses is that they can serve as a stroboscopic illumination for making movies of very short-lived phenomena, such as the movement and interactions of molecules.

A pulse of light normally has many cycles of smoothly varying electric and magnetic fields. Through the use of special fibers, prisms, and optical materials, a pulse of light can be compressed down to very short temporal durations, even as short as a single cycle (only one complete wavelength of radiation).

A major reason for wanting shorter light pulses is that more data can be encoded within a signal lasting a certain interval of time. Shorter pulses would allow more data to be sent down an optical fiber, for example. Another important scientific use of very short pulses is that they can serve as a stroboscopic illumination for making movies of very short-lived phenomena, such as the movement and interactions of molecules.

Scientists at the University of Konstanz in Germany are the first to report creating a single-cycle pulse as short as 4.3 femtoseconds in the infrared region of light (which is the crucial type of light for communications applications) around 1.3 microns in wavelength. Guenther Krauss, who works with Alfred Leitenstorfer in the Department of Physics, says that another distinction of the light is that it has the highest frequency ever achieved for single-cycle pulses.

With such short light pulses, the data transmission rate for applications like the Internet might reach rates of 100 terabits per second, says Krauss. Furthermore, the femtosecond (10-15 seconds) pulses created in the current experiments might serve as the seed for making even shorter pulses in the attosecond (10-18 seconds) domain.

The work is being reported at the 2010 Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference (CLEO/QELS) May 16-21 at the San Jose McEnery Convention Center in San Jose, Calif., where researchers from around the world are presenting the latest breakthroughs in electro-optics, innovative developments in laser science, and commercial applications in photonics.

Presentation: "Single-Cycle Light Pulses from a Compact Er: Fiber Laser," by Guenther Krauss et al is at 4:45 p.m. Wednesday, May 19.


Story Source:

The above story is based on materials provided by Optical Society of America. Note: Materials may be edited for content and length.


Cite This Page:

Optical Society of America. "Single-cycle infrared light pulses." ScienceDaily. ScienceDaily, 17 May 2010. <www.sciencedaily.com/releases/2010/05/100511143041.htm>.
Optical Society of America. (2010, May 17). Single-cycle infrared light pulses. ScienceDaily. Retrieved April 17, 2014 from www.sciencedaily.com/releases/2010/05/100511143041.htm
Optical Society of America. "Single-cycle infrared light pulses." ScienceDaily. www.sciencedaily.com/releases/2010/05/100511143041.htm (accessed April 17, 2014).

Share This



More Matter & Energy News

Thursday, April 17, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

German Researchers Crack Samsung's Fingerprint Scanner

German Researchers Crack Samsung's Fingerprint Scanner

Newsy (Apr. 16, 2014) German researchers have used a fake fingerprint made from glue to bypass the fingerprint security system on Samsung's new Galaxy S5 smartphone. Video provided by Newsy
Powered by NewsLook.com
Porsche CEO Says Supercar Is Not Dead: Cue the Spyder 918

Porsche CEO Says Supercar Is Not Dead: Cue the Spyder 918

TheStreet (Apr. 16, 2014) The Porsche Spyder 918 proves that, in an automotive world obsessed with fuel efficiency, the supercar is not dead. Porsche North America CEO Detlev von Platen attributes the brand's consistent sales growth -- 21% in 2013 -- with an investment in new technology and expanded performance dynamics. The hybrid Spyder 918 has 887 horsepower and 944 lb-ft of torque, but it can run 18 miles on just an electric charge. The $845,000 vehicle is not a consumer-targeted vehicle but a brand statement. Video provided by TheStreet
Powered by NewsLook.com
Industry's Optimism Shines At New York Auto Show

Industry's Optimism Shines At New York Auto Show

Newsy (Apr. 16, 2014) After seeing auto sales grow last month, there's plenty for the industry to celebrate as it rolls out its newest designs. Video provided by Newsy
Powered by NewsLook.com
Ford Mustang Fetes Its 50th Atop Empire State Building

Ford Mustang Fetes Its 50th Atop Empire State Building

AFP (Apr. 16, 2014) Ford celebrated the 50th birthday of its beloved Mustang by displaying a new model of the convertible on top of the Empire State Building in New York. Duration: 00:28 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:
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