Experimental and theoretical investigation of a multicolor filament

被引：44

作者：

Fuji, Takao ^{[1
,2
]}

Suzuki, Toshinori ^{[1
,2
,5
]}

Serebryannikov, Evgenii E. ^{[3
,4
]}

Zheltikov, Aleksei ^{[3
,4
]}

机构：

[1] RIKEN, Chem Dynam Lab, Adv Sci Inst, Wako, Saitama 3510198, Japan

[2] Japan Sci & Technol Agcy, CREST, Chiyoda Ku, Tokyo 1020075, Japan

[3] Moscow MV Lomonosov State Univ, Dept Phys, Moscow 119992, Russia

[4] Moscow MV Lomonosov State Univ, Ctr Int Laser, Moscow 119899, Russia

[5] Kyoto Univ, Dept Chem, Grad Sch Sci, Kyoto 6068501, Japan

来源：

PHYSICAL REVIEW A | 2009年 / 80卷 / 06期

关键词：

ULTRAVIOLET PULSES; FEMTOSECOND FILAMENTATION; GENERATION; CONVERSION; LIGHT; FS;

D O I：

10.1103/PhysRevA.80.063822

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Generation of ultrashort ultraviolet (uv) pulses by using nonlinear frequency conversion through filamentation was experimentally and theoretically investigated. By gently focusing second harmonic and fundamental Ti:sapphire laser pulses into gases, ultrashort uv pulses were efficiently generated by four-wave mixing processes through filamentation. The pressure dependence of the conversion efficiency cannot be explained by a one-dimensional model, but calculation of multicolor filament by a three-dimensional model was successful. The simulation result indicates a broad scalability of the scheme for frequency conversion of ultrashort pulses. The generated two-color uv pulses (200 and 260 nm) were successfully compressed down to similar to 15 fs.

引用

页数：5

共 24 条

[1] Third-harmonic generation and self-channeling in air using high-power femtosecond laser pulses -: art. no. 143901 [J].