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Optica Publishing Group
  • Quantum Electronics and Laser Science Conference
  • OSA Technical Digest (Optica Publishing Group, 1997),
  • paper QWD10

Optical pulse propagation at superluminal group velocities

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Abstract

An optical pulse propagating through a linear medium is known from the Kramers-Kronig relations to have a group velocity that is superluminal when the pulse's carrier frequency is close to but outside of a gain line. Group velocities that are greater than c, negative or infinite, are found in a transparent window on either side of the gain line.

© 1997 Optical Society of America

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