Abstract
We demonstrate a technique for measuring pulse propagation time delays with 0.5-fs resolution by use of a widely available 100-fs pulsed laser. Using this technique, we measured the time delay of a light pulse transiting through subwavelength apertures placed on a metallic film. We measured a 7-fs total transit time, corresponding to an effective group velocity of . The experimental result yielded additional evidence that light interacts resonantly with oscillators formed by the surface modes near the small apertures.
© 2001 Optical Society of America
Full Article | PDF ArticleMore Like This
Tineke Thio, K. M. Pellerin, R. A. Linke, H. J. Lezec, and T. W. Ebbesen
Opt. Lett. 26(24) 1972-1974 (2001)
A.R. Zakharian, M. Mansuripur, and J.V. Moloney
Opt. Express 12(12) 2631-2648 (2004)
Tae Jin Kim, Tineke Thio, T. W. Ebbesen, D. E. Grupp, and H. J. Lezec
Opt. Lett. 24(4) 256-258 (1999)