Open AccessAbsorption of femtosecond laser pulses in metallic and dielectric slabs
Author(s) -
Zhenglin Chen,
Jie Zhang,
Liming Chen,
Hao Teng,
Quan Dong,
Zhao Li-Zeng,
Zhiyi Wei
Publication year - 2003
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.52.1672
Subject(s) - femtosecond , materials science , laser , dielectric , absorption (acoustics) , electron , plasma , irradiation , metal , atomic physics , optics , optoelectronics , physics , quantum mechanics , nuclear physics , metallurgy , composite material
Laser absorption, and hot electron emission and its energy spectrum are studied in the interaction between P-polarized femtosecond laser pulses at 8×1015 W/cm2 and solid-density plasmas. Comparison is made between th e different b ehaviours of metallic and dielectric slabs irradiated by femtosecond laser pulse s. It appears that there are less laser absorption, fewer hot electrons and high er hot electron temperature from dielectric slabs compared with metallic ones. T hese are concluded to be due to the lower conductivity and consequently lower ch arge separation potential of the dielectric slabs.