Abstract
We present a new scheme, the ion-ripple laser, for generating tunable coherent radiation ranging from microwaves to the ultraviolet. A relativistic electron beam obliquely propagating through an ion ripple excites electromagnetic radiation which is coupled to a negative-energy electrostatic wave via backward Raman scattering. The radiation peaks at a resonance frequency of cos. We derive the fluid theory dispersion relation for wave coupling and estimate the nonlinear saturation level. A 1 2/2 D PIC simulation code is used to verify the theory and scaling laws.
| Original language | English |
|---|---|
| Pages (from-to) | 29-32 |
| Number of pages | 4 |
| Journal | Physical review letters |
| Volume | 68 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1992 |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy