High average power second harmonic generation in air
We demonstrate second harmonic vortex generation in atmospheric pressure air using tightly focused femtosecond laser beam. The circularly polarized ring-shaped beam of the second harmonic is generated in the air by fundamental beam of the same circular polarization, while the linear polarized beam p...
Main Authors: | , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
2009-09-21.
|
Subjects: | |
Online Access: | Get fulltext |