Open AccessLaser emission from flash ignition of Zr/Al nanoparticles
Author(s) -
Fan Yang,
Xiaoli Kang,
Jiangshan Luo,
Li Sun,
Handing Xia,
Zao Yi,
Yongjian Tang
Publication year - 2017
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.25.00a932
Subject(s) - materials science , ignition system , laser , adiabatic process , laser ignition , optics , flash (photography) , analytical chemistry (journal) , yield (engineering) , brightness , composite material , chemistry , thermodynamics , physics , chromatography
We report the first laser emission from flash ignition of Zr/Al nanoparticles with the addition of strong oxidizer KClO 4 using Nd: YAG as a laser medium. The mixture Zr/Al/Kp-45 (mass ratio = 33%Zr: 33%Al: 34%KClO 4 ) has the highest brightness temperature Tb = 4615 K and the adiabatic flame temperature Tf = 4194 K with the duration of 20 ms. At 1064 nm we measured a maximum output energy of 702.5 mJ with the duration of nearly 10 ms by using only 100 mg mixture with an output coupler (transmission T = 10%). Further optimizing the concentration cavity and increasing the mixture content will yield much higher efficiency and output energy.