High-order harmonic enhancement using the quasi-phase-matching in laser plasma
R. A. Ganeev, M. Suzuki, H. Kuroda
Ophthalmology and Advanced Laser Medical Center, Saitama Medical University, 350-0495 Saitama, Japan
Abstract
The quasi-phase-matching of the high-order harmonics generating
in the multiple plasma jets
produced on the surfaces of perforated Ag, V, and Mn targets is
demonstrated. The 20× and
30× enhancement factors of quasi-phase-matched harmonics of
804 nm radiation in the range
of 35th harmonic in the cases of silver and vanadium plasmas were
achieved.