Abstract
We present the results of simulations of the propagation of high-intensity laser pulses in discharge-ablated capillary waveguides. The limitations of this type of waveguide for pulse intensities of the order of 1016 W cm-2 are discussed. However, for higher intensities we describe a new regime of quasi-matched guiding, that results in significant improvements in guiding performance. The effect on quasi-matched guiding of changing the atomic numbers of the atoms that compose the plasma waveguide is discussed. Calculations are presented for boron capillaries that show quasi-matched guiding over lengths of 32 mm for an input intensity of 5 × 10 17 Wcm-2.
| Original language | English |
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| Pages (from-to) | 1565-1570 |
| Number of pages | 6 |
| Journal | Journal of the Optical Society of America B: Optical Physics |
| Volume | 17 |
| Issue number | 9 |
| Publication status | Published - 2000 |
| Externally published | Yes |