Researchers develop new way to generate superluminal pulses

Four-Wave Mixing In four-wave mixing, researchers send "seed" pulses of laser light into a heated cell containing atomic rubidium vapor along with a separate "pump" beam at a different frequency. The vapor amplifies the seed pulse and shifts its peak forward, making it superluminal. NIST Our nation's official keepers of time and other standards are breaking one of the cardinal rules: They have figured out how to make superluminal light pulses. This paradoxical sentence - faster-than-light light - is from a new paper explaining how to make the sine wave of light hunch in on itself and arrive a few nanoseconds earlier than it would if it had moved at light speed. Nothing can move faster than light, as neutrinos coldly reminded us earlier this year. Einstein's constant C, for the speed of light in a vacuum, is a universal constant. But researchers at the National Institute of Standards and Technology are playing some tricks with physics. A short burst of light can be expressed as a curvy wave, with the hump rep

Researchers develop new way to generate superluminal pulses

(Phys.org) -- Researchers at the National Institute of Standards and Technology (NIST) have developed a novel way of producing light pulses that are "superluminal"—in some sense they travel ...

Thu 3 May 12 from Phys.org

Fed Up With Sluggish Neutrinos, Scientists Force Light To Move Faster Than Its Own Speed Limit

Four-Wave Mixing In four-wave mixing, researchers send "seed" pulses of laser light into a heated cell containing atomic rubidium vapor along with a separate "pump" beam at a different frequency. ...

Thu 3 May 12 from Popular Science

First light: NIST researchers develop new way to generate superluminal pulses

Washington DC (SPX) May 08, 2012 Researchers at the National Institute of Standards and Technology (NIST) have developed a novel way of producing light pulses that are "superluminal"-in some ...

Tue 8 May 12 from SpaceDaily

First light: NIST researchers develop new way to generate superluminal pulses, Thu 3 May 12 from e! Science News

First light: NIST researchers develop new way to generate superluminal pulses, Thu 3 May 12 from Eurekalert

First light: Researchers develop new way to generate superluminal pulses

Researchers have developed a novel way of producing light pulses that are "superluminal" -- in some sense they travel faster than the speed of light. The new method could be used to improve ...

Thu 3 May 12 from ScienceDaily

  • Pages: 1

Total number of sources: 6

Bookmark

Bookmark and Share