Improved reproducibility of conical emission from glasss under axicon focusing of femtosecond laser pulse

被引：1
|
作者：
Chekalin, S. V. [1 ]
Kompanets, V. O. [1 ]
Kosareva, O. G.
Grigor'evskii, A. V.
Kandidov, V. P.
机构：
[1] RAS, Inst Spect, Troitsk 142190, Russia
来源：
INTERNATIONAL CONFERENCE ON LASERS, APPLICATIONS, AND TECHNOLOGIES 2007: ENVIRONMENTAL MONITORING AND ECOLOGICAL APPLICATIONS; OPTICAL SENSORS IN BIOLOGICAL, CHEMICAL, AND ENGINEERING TECHNOLOGIES; AND FEMTOSECOND LASER PULSE FILAMENTATION | 2007年 / 6733卷
关键词：
filamentation; axicon; supercontinuum; conical emission; femtosecond pulse;
D O I：
10.1117/12.753161
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
The supercontinuum conical emission of a 50-fs laser pulse focused into a K 108 glass is studied experimentally and numerically. It is found that, as the pulse energy was increased from 2 to 30 uj, the continuous picture of conical emission decomposed into speckles upon focusing with a lens and split into narrow rings upon focusing with an axicon. Preserving of distinct interference picture under more than 1000 shots exposure evidences in favor of much more stable positioning of microfilament in the case of axicon.
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页数：6
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