Changing the speed of optical coherence in free space

It is typically assumed that the fluctuations associated with a stationary broadband incoherent field propagate in free space at the speed of light in vacuum ð'. Here we introduce the concept of "coherence group velocity" which, in analogy to the group velocity of coherent pulses, i...

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Veröffentlicht in:	Optics letters 2019-11, Vol.44 (21), p.5125-5128
Hauptverfasser:	Yessenov, Murat, Abouraddy, Ayman F.
Format:	Artikel
Sprache:	eng
Schlagworte:	Broadband Coherence Correlation analysis Group delay Group velocity Light speed Superluminescent diodes Variations Velocity
Online-Zugang:	Volltext
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