Abstract
Refractive-index gradients induced in the atmospheric air by properly tailored laser and microwave fields are shown to enable a remote steering of laser beams. Heatingassisted modulation of the refractive index of the air by microwave radiation is shown to support small-angle laser-beam bending with bending angles on the order of 10-2. Ionization of the atmospheric air by dyads of femto- and nanosecond laser pulses, on the other hand, can provide beam deflection angles in excess of π/5, offering an attractive strategy for radiation transfer, free-space communications, and laser-based standoff detection.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 68-72 |
| Number of pages | 5 |
| Journal | Laser Physics Letters |
| Volume | 9 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 2012 |
All Science Journal Classification (ASJC) codes
- Instrumentation
- Physics and Astronomy (miscellaneous)
Keywords
- Beam steering
- Filamentation
- Laser standoff detection
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