Featured Research

from universities, journals, and other organizations

Simulating black hole radiation with lasers: Lasers produce the first Hawking radiation ever detected

Date:
November 8, 2010
Source:
American Physical Society
Summary:
Hawking radiation from black holes is very dim, and unlikely to be detected any time soon. Now researchers have created a laboratory experiment that produces detectable Hawking radiation with a laser.

This experimental layout produces a detectable analogue of Hawking radiation. The input laser pulse is focused into a sample of fused silica (FS) using an axicon or lens (F). An imaging lens (I) collects the photons emitted at 90 deg and sends them to an imaging spectrometer coupled to a cooled CCD camera.
Credit: F. Belgiorno, S.L. Cacciatori, M. Clerici, V. Gorini, G. Ortenzi, L. Rizzi, E. Rubino, V.G. Sala, D. Faccio

A team of Italian scientists has fired a laser beam into a hunk of glass to create what they believe is an optical analogue of the Hawking radiation that many physicists expect is emitted by black holes.

Related Articles


Although the laser experiment superficially bears little resemblance to ultra-dense black holes, the mathematical theories used to describe both are similar enough that confirmation of laser-induced Hawking radiation would bolster confidence that black holes also emit Hawking radiation.

When Stephen Hawking first predicted the radiation bearing his name in 1974, he hypothesized that photons could be spontaneously generated from the vacuum at the edge of a black hole. However, Hawking radiation emitted from a black hole would be so weak that many scientists believe it to be nearly impossible to detect.

Scientists have turned to lasers before in attempts to create Hawking radiation, but have had difficulty isolating Hawking radiation from other forms of light emitted during experiments. Franco Belgiorno et al. combined a tunable laser beam with a bulk glass target, which allowed them to limit the Hawking radiation to certain wavelengths of infrared light and to capture the apparent Hawking radiation with an infrared sensitive digital camera.

A paper describing the possible production of a laser induced analogue of Hawking radiation appears in the current issue of Physical Review Letters, and is the subject of a Viewpoint article by John Dudley (CNRS, France) and Dmitry Skryabin (University of Bath, UK) in this week's edition of Physics.


Story Source:

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


Journal References:

  1. F. Belgiorno, S. Cacciatori, M. Clerici, V. Gorini, G. Ortenzi, L. Rizzi, E. Rubino, V. Sala, D. Faccio. Hawking Radiation from Ultrashort Laser Pulse Filaments. Physical Review Letters, 2010; 105 (20) DOI: 10.1103/PhysRevLett.105.203901
  2. John Dudley, Dmitry Skryabin. New horizons for Hawking radiation. Physics, 2010; 3 DOI: 10.1103/Physics.3.95

Cite This Page:

American Physical Society. "Simulating black hole radiation with lasers: Lasers produce the first Hawking radiation ever detected." ScienceDaily. ScienceDaily, 8 November 2010. <www.sciencedaily.com/releases/2010/11/101108140643.htm>.
American Physical Society. (2010, November 8). Simulating black hole radiation with lasers: Lasers produce the first Hawking radiation ever detected. ScienceDaily. Retrieved January 25, 2015 from www.sciencedaily.com/releases/2010/11/101108140643.htm
American Physical Society. "Simulating black hole radiation with lasers: Lasers produce the first Hawking radiation ever detected." ScienceDaily. www.sciencedaily.com/releases/2010/11/101108140643.htm (accessed January 25, 2015).

Share This


More From ScienceDaily



More Space & Time News

Sunday, January 25, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

NASA's On Course To Take Pluto's Best Photo Ever

NASA's On Course To Take Pluto's Best Photo Ever

Newsy (Jan. 25, 2015) NASA&apos;s New Horizons probe is en route to snap a picture of Pluto this summer, but making sure it doesn&apos;t miss its one chance to do so starts now. Video provided by Newsy
Powered by NewsLook.com
Rosetta Captures Stunning Views, Diverse Data Of Comet 67P

Rosetta Captures Stunning Views, Diverse Data Of Comet 67P

Newsy (Jan. 23, 2015) The first images of the European Space Agency&apos;s Rosetta probe comet orbit could provide clues about its origin and how it got its unique shape. Video provided by Newsy
Powered by NewsLook.com
New Planets Could Be Lurking Far Beyond Neptune

New Planets Could Be Lurking Far Beyond Neptune

Newsy (Jan. 21, 2015) Scientists say planets located beyond Neptune could be altering the orbits of objects in the farthest reaches of our solar system. Video provided by Newsy
Powered by NewsLook.com
130,000 Pages Of UFO Investigation Docs Now Online

130,000 Pages Of UFO Investigation Docs Now Online

Newsy (Jan. 20, 2015) "UFO enthusiast" John Greenewald says he&apos;s spent 20 years collecting these docs, and believes there&apos;s a cover-up going on. 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