Frequency- and time-domain detection of superluminal group velocities in one dimensional photonic crystals (1DPC)

Mojahedi, Mohammad; Malloy, Kevin J.; Chiao, Raymond
January 2000
AIP Conference Proceedings;2000, Vol. 504 Issue 1, p1093
Academic Journal
In this work we discuss two recent experiments in the frequency- and time-domain for electromagnetic waves tunneling through an optical multilayer also known as 1DPC. These experiments are intended to demonstrate measurability and hence the physical reality of the superluminal (exceeding the speed of light in vacuum) group velocities for evanescent modes. Despite these anomalous velocities, Einstein causality is not violated since the front (Sommerfeld forerunner) remains luminal. © 2000 American Institute of Physics.


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