Abstract
We demonstrate that interference-assisted coalescence of two noncollinearly overlapped filaments creates a wavelength-scale periodic plasma density modulation to guide the input pulses equivalently as a photonic crystal plasma waveguide. The periodic self-channeling is evidenced by the direct observation of the filament coalescence, which reveals wavelength-scale spatial widths and periodicity dependent on the crossing angles and intensity ratios between the incident filaments.
| Original language | English |
|---|---|
| Pages (from-to) | 3806-3808 |
| Number of pages | 3 |
| Journal | Optics Letters |
| Volume | 34 |
| Issue number | 24 |
| DOIs | |
| State | Published - 15 Dec 2009 |