Observation of single high-harmonic enhancement by quasi-resonance with a tellurium ion in a laser-ablation plume at 29.44 nm

被引：17
作者：
Suzuki, Masayuki
Baba, Motoyoshi
Kuroda, Hiroto
Ganeev, Rashid A.
Ozaki, Tsuneyuki
机构：
[1] Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan
[2] Uzbek Acad Sci, Sci Assoc Akad, Tashkent 100125, Uzbekistan
[3] Inst Natl Rech Sci, Varennes, PQ J3X 1S2, Canada
来源：
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2007年 / 24卷 / 10期
关键词：
D O I：
10.1364/JOSAB.24.002686
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We demonstrate the intensity enhancement of a single high-order harmonic (27th harmonic) at 29.44 nm by using lowly charged tellurium ions in a laser-ablation plume. The enhancement of a single harmonic is due to multiphoton resonance with a Te II transition having strong oscillator strength. By tuning the wavelength of the pump laser, we found that the enhancement factor depends on the difference between the wavelength of the enhanced harmonic and that of the strong radiative transition. For tellurium, we show that intense single harmonic generation can be generated when the wavelength of the 27th harmonic is closer to the wavelength of the strong transition.
引用
收藏
页码：2686 / 2689
页数：4
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