Measurement of the superluminal group velocity of an ultrashort Bessel beam pulse.
作者： I Alexeev , KY Kim , HM Milchberg , None
DOI: 10.1103/PHYSREVLETT.88.073901
关键词:
摘要: The superluminal group velocity of an ultrashort optical Bessel beam pulse is measured over its entire depth field, corresponding to approximately 2x10(4) wavelengths. method used measure the traveling ionization front induced by pulse.
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