Open AccessSpatio-temporal X-wave
Author(s) -
Eran Small,
Ori Katz,
Yochay Eshel,
Yaron Silberberg,
Dan Oron
Publication year - 2009
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.17.018659
Subject(s) - optics , physics , speckle pattern , plane wave , excitation , ultrashort pulse , pulse (music) , laser , quantum mechanics , detector
We introduce an illumination configuration which is a spatiotemporal analog of a non-diffracting X-wave. By interfering multiple ultrashort converging plane waves, we generate a tight central spot at which a transform limited ultrashort pulse is formed. Outside this tight focus a spatiotemporal speckle field with longer duration and reduced peak power is created. We investigate this spatiotemporal X-wave configuration analytically, numerically, and experimentally demonstrate the effect using two photon excitation fluorescence.