Control of femtosecond multi-filamentation in glass by designable patterned optical fields | Zendy

Pingping Li | Zendy; Mengqiang Cai | Zendy; JiaQi Lü | Zendy; Dan Wang | Zendy; Gui-Geng Liu | Zendy; Sheng-Xia Qian | Zendy; Yongnan Li | Zendy; Chenghou Tu | Zendy; HuiTian Wang | Zendy

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Control of femtosecond multi-filamentation in glass by designable patterned optical fields

Author(s) -

Pingping Li,

Mengqiang Cai,

JiaQi Lü,

Dan Wang,

Gui-Geng Liu,

Sheng-Xia Qian,

Yongnan Li,

Chenghou Tu,

HuiTian Wang

Publication year - 2016

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4971427

Subject(s) - filamentation , femtosecond , materials science , grating , optics , optoelectronics , flexibility (engineering) , spatial light modulator , laser , physics , statistics , mathematics

We present a scheme for realizing femtosecond multi-filamentation with designable quantity and locations of filaments, based on the control of multi-focal spots formed by patterned optical fields (POFs) composed of multiple individual optical fields (IOFs). A computer-controlled spatial light modulator is used to engineer the POFs. In particular, we introduce a blazed phase grating in any IOF, which increases a degree of freedom, making the engineering of multi-focal spots becomes more flexible. We achieve experimentally the aim controlling femtosecond multi-filamentation in a K9 glass. Our scheme has great flexibility and convenience in controlling the multi-filamentation in quantity and locations of filaments and strength of interaction between filaments

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