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Spatio-temporal X-wave
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DOI：10.1364/OE.17.018659.png)
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Abstract
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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. (C) 2009 Optical Society of America
Keywords:
NONDIFFRACTING BEAMS
MICROSCOPY
PULSE
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3.3
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6.1W
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14.3W
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