Abstract

We report the demonstration of strong resonance enhancement of a single high-order harmonic in the extreme ultraviolet (XUV) region generated from the interaction of a femtosecond pulse with low-ionized In ablation. A strong 13th harmonic $\left(61.2\mathrm{nm}\right)$ of Ti:sapphire laser radiation with output intensity almost two orders of magnitude higher than neighboring harmonics was observed in these studies. The high conversion efficiency of the 13th harmonic $(8\times {10}^{-5})$ is attributed to multiple collisions of electron trajectories with the origin due to multiphoton resonance with the In ion.

© 2006 Optical Society of America

High-order harmonic generation from boron plasma in the extreme-ultraviolet range

Rashid Ganeev, Masayuki Suzuki, Motoyoshi Baba, Hiroto Kuroda, and Tsuneyuki Ozaki
Opt. Lett. 30(7) 768-770 (2005)

Anomalous enhancement of a single high-order harmonic by using a laser-ablation tin plume at 47 nm

Masayuki Suzuki, Motoyoshi Baba, Rashid Ganeev, Hiroto Kuroda, and Tsuneyuki Ozaki
Opt. Lett. 31(22) 3306-3308 (2006)

Strong enhancement and extinction of single harmonic intensity in the mid- and end-plateau regions of the high harmonics generated in weakly excited laser plasmas

Rashid A. Ganeev, Prasad Anant Naik, Himanshu Singhal, Juzer Ali Chakera, and Parshotam Dass Gupta
Opt. Lett. 32(1) 65-67 (2007)

Single-harmonic enhancement by controlling the chirp of the driving laser pulse during high-order harmonic generation from GaAs plasma

Rashid A. Ganeev, Himanshu Singhal, Prasad Anant Naik, Vipul Arora, Uday Chakravarty, Juzer Ali Chakera, Riyaz Ahmed Khan, Pavel V. Redkin, Manchi Raghuramaiah, and Parshotam Dass Gupta
J. Opt. Soc. Am. B 23(12) 2535-2540 (2006)

Intense exact resonance enhancement of single-high-harmonic from an antimony ion by using Ti:Sapphire laser at 37 nm

Masayuki Suzuki, Motoyoshi Baba, Hiroto Kuroda, Rashid A. Ganeev, and Tsuneyuki Ozaki
Opt. Express 15(3) 1161-1166 (2007)