Abstract
The fundamental characteristics of supercontinuum filament formation in condensed media are investigated along with several novel techniques for controlling their normally random distribution pattern. The utilisation of these supercontinuum filaments as light sources in remote sensing experiments is also discussed. In the first experiments a longitudinal imaging technique is used to scan through the filament and generate a plot of the intensity profile. From this profile an accurate measurement for the filament length and waist may be obtained. Using a similar set-up, the remarkably stable phase relationship is demonstrated between neighbouring filaments and the consequent interference pattern recorded. The second investigations present techniques for controlling both the radial distribution of filaments and the distance at which they form on the axis of propagation.
| Original language | English |
|---|---|
| Article number | 598406 |
| Journal | Proceedings of SPIE - the International Society for Optical Engineering |
| Volume | 5984 |
| DOIs | |
| Publication status | Published - 2005 |
| Event | Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing - Bruges, Belgium Duration: 19 Sept 2005 → 20 Sept 2005 |
Keywords
- Diffraction
- Femtosecond
- Filament
- Laser
- Optical Kerr effect
- Remote sensing
- Self-focusing
- White light continuum