Periodic index-modulated plasma waveguide.
We demonstrate a wire-obstructed cluster flow technique for making periodically modulated plasma waveguides in hydrogen, nitrogen, and argon with sharp, stable voids as short as 50 microm with a period as small as 200 microm. These gaps persist as the plasma expands for the full lifetime of the waveguide. We demonstrate guided propagation at intensities up to 2 x 10(17) W/cm(2), limited by our laser energy currently available. This technique is useful for quasi-phase matching applications where index-modulated guides are superior to diameter modulated guides.
Layer
B D
BD
Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, MD 20742, USA. layerbd@gmail.com
York
A G
AG
Varma
S
S
Chen
Y-H
YH
Milchberg
H M
HM