Third harmonic generation by ultrashort laser pulses tightly focused in air |
| |
| Authors: | A A Ionin S I Kudryashov L V Seleznev D V Sinitsyn E S Sunchugasheva V Yu Fedorov |
| |
| Institution: | 1.Lebedev Physical Institute Russian Academy of Sciences,Moscow,Russia;2.Moscow Institute of Physics and Technology (State University),Dolgoprudny, Moscow region,Russia;3.Moscow State University,Moscow,Russia |
| |
| Abstract: | The influence of focusing conditions (numerical apertures from 0.004 to 0.06) on absolute energetic characteristics of third
harmonic generation (THG) in air was experimentally studied for pumping 1R (744 nm wavelength) femtosecond laser pulses. THG
was observed both for sub-critical and super-critical laser pulses in the linear and non-linear propagation modes, respectively.
The maximum THG efficiency of 1.6 × 10−3 was obtained in our experiments at the tight focusing conditions and the sub-critical pulse powers. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
