Sixth harmonic generation of 1064-nm laser in KBBF prism coupling devices under two kinds of gas conditions  

作　　者：李成明 周勇 宗楠 许祖彦 王晓洋 朱镛 

机构地区：[1]Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences [2]Technical Institute of Physics and Chemistry, Chinese Academy of Sciences

出　　处：《Chinese Optics Letters》2009年第7期621-623,共3页中国光学快报（英文版）

基　　金：supported by the State Key Development Program of Basic Research of China (No.2004CB619006);the National Natural Science Foundation of China (Nos. 60578030 and 50590404)

摘　　要：The conversion efficiency on the sixth harmonic of 1064 nm in KBe2BO3F2 （KBBF） at different gas pressures in two kinds of gases, helium and nitrogen, is measured and compared. In the both gases, maximum conversion efficiency on the sixth harmonic of 1064 nm in high vacuum is nearly 10% of 355 nm, which is almost four times higher than that in low vacuum. The maximum average output power at 177.3 nm is 670 ttW with the repetition rate of 10 Hz and the duration of 20 ps in high vacuum. It indicates that the sixth harmonic generation in high vacuum is more preferable than that in low vacuum.The conversion efficiency on the sixth harmonic of 1064 nm in KBe2BO3F2 （KBBF） at different gas pressures in two kinds of gases, helium and nitrogen, is measured and compared. In the both gases, maximum conversion efficiency on the sixth harmonic of 1064 nm in high vacuum is nearly 10% of 355 nm, which is almost four times higher than that in low vacuum. The maximum average output power at 177.3 nm is 670 ttW with the repetition rate of 10 Hz and the duration of 20 ps in high vacuum. It indicates that the sixth harmonic generation in high vacuum is more preferable than that in low vacuum.

关 键 词：Conversion efficiency Harmonic analysis Harmonic generation HELIUM 

分 类 号：O461[理学—电子物理学]