SELF-ASSEMBLED VOLUME GRATING IN SILICA GLASS INDUCED BY TIGHTLY FOCUSED FEMTOSECOND LASER PULSE

2009 ◽  
Vol 18 (04) ◽  
pp. 625-632
Author(s):  
ZHONGYI GUO ◽  
WEIQIANG DING ◽  
SHILIANG QU ◽  
JINGMIN DAI ◽  
SHUTIAN LIU
Keyword(s):  
Laser Pulse ◽  
Femtosecond Laser ◽  
Femtosecond Laser Pulse ◽  
Silica Glass ◽  
Femtosecond Pulses ◽  
Scanning Velocity ◽  
First Order ◽  
Diffractive Efficiency ◽  
Transparent Materials ◽  
Self Assembled

We report on self-assembled volume grating in silica glass induced by a tightly focused femtosecond laser pulse. The formation of volume grating is attributed to the multiple microexplosion in the transparent materials induced by the femtosecond pulses. The first order diffractive efficiency is greatly dependent on the energy of the pulses and the scanning velocity of the laser, and the highest reaches to nearly 30%.

scholarly journals Thermal and shock induced modification inside a silica glass by focused femtosecond laser pulse

2011 ◽  
Vol 109 (2) ◽  
pp. 023503 ◽  
Author(s):  
Masaaki Sakakura ◽  
Masahide Terazima ◽  
Yasuhiko Shimotsuma ◽  
Kiyotaka Miura ◽  
Kazuyuki Hirao
Keyword(s):  
Laser Pulse ◽  
Femtosecond Laser ◽  
Femtosecond Laser Pulse ◽  
Silica Glass

scholarly journals Linear angular dispersion compensation of cleaned self-diffraction light with a single prism

2018 ◽  
Vol 6 ◽  
Author(s):  
Xiong Shen ◽  
Peng Wang ◽  
Jun Liu ◽  
Ruxin Li
Keyword(s):  
Laser Pulse ◽  
Femtosecond Laser ◽  
Femtosecond Laser Pulse ◽  
Dispersion Compensation ◽  
Main Pulse ◽  
Angular Dispersion ◽  
First Order ◽  
Fundamental Pulse ◽  
Cleaning Device ◽  
Magnitude Improvement

The linear angular dispersion of a self-diffraction (SD) pulse, from a femtosecond laser pulse cleaning device, is compensated for by the use of a single prism. More than $500~\unicode[STIX]{x03BC}\text{J}$ first-order SD pulse has a contrast of $10^{12}$, which is about five orders of magnitude improvement from the input fundamental pulse. The wings of the distribution away from the main pulse in $\pm 1$ ps are cleaned with a contrast improvement of about $10^{7}$, which verifies the pulse cleaning ability of the SD process.

scholarly journals Light-Tunable Ferromagnetism in Atomically Thin Fe3GeTe2 Driven by Femtosecond Laser Pulse

2020 ◽  
Vol 125 (26) ◽  
Author(s):  
Bo Liu ◽  
Shanshan Liu ◽  
Long Yang ◽  
Zhendong Chen ◽  
Enze Zhang ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Femtosecond Laser ◽  
Femtosecond Laser Pulse
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