Spatiotemporal focusing of single-cycle light pulses
- 1 August 1999
- journal article
- Published by Optica Publishing Group in Journal of the Optical Society of America A
- Vol. 16 (8) , 2025-2028
- https://doi.org/10.1364/josaa.16.002025
Abstract
We investigate experimentally and numerically the properties of single-cycle terahertz pulses propagating through a focus. The experimental data clearly show changes in pulse shape resulting from the Gouy phase shift and apparent superluminal pulse propagation. The pulses are also considerably distorted by diffraction effects. A solution of the time-domain diffraction integral is necessary to explain the details of the data and leads to an excellent agreement between experiment and theory.Keywords
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