Control of laser heating in clusters through variation in temporal pulse shape
| Autor: | John W. G. Tisch, N. Hay, Jonathan P. Marangos, K. J. Mendham, M. B. Mason |
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| Rok vydání: | 2003 |
| Předmět: |
Femtosecond pulse shaping
Materials science business.industry Physics::Optics Q-switching Atomic and Molecular Physics and Optics Prism compressor Pulse (physics) Optics Multiphoton intrapulse interference phase scan Ultrafast laser spectroscopy Physics::Atomic Physics Atomic physics business Ultrashort pulse Bandwidth-limited pulse |
| Zdroj: | Optics Express. 11:1357 |
| ISSN: | 1094-4087 |
| DOI: | 10.1364/oe.11.001357 |
| Popis: | We present results of experiments and simulations of the interaction between a high intensity, femtosecond laser pulse and an atomic cluster that show the temporal profile of the laser pulse plays a crucial role in the expansion dynamics of the cluster. Experiments were conducted in rare gas clusters of Xe, Kr and Ar of radius 30 - 80 A with a laser pulse of duration 70 - 240 fs and a peak intensity of ~1016 Wcm-2. The shape of the laser pulse was a Gaussian with a shoulder of intensity 0.02 times the peak pulse intensity appearing on either the rising or falling edge of the main pulse depending on the sign of chirp applied to the laser pulse. Significant differences (up to a factor of 2) in the energies of the ions obtained from the laser-cluster interaction were measured when the shape of the laser pulse was varied. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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