Laser ablation of solid substrates in a water-confined environment

Abstract

Pulsed laser operated high rate charging of Fe-doped LiNbO3 crystal for electron emission J. Appl. Phys. 112, 073107 (2012) Formation of nanostructured TiO2 by femtosecond laser irradiation of titanium in O2 J. Appl. Phys. 112, 063108 (2012) Finite element calculations of the time dependent thermal fluxes in the laser-heated diamond anvil cell J. Appl. Phys. 111, 112617 (2012) Space charge corrected electron emission from an aluminum surface under non-equilibrium conditions J. Appl. Phys. 111, 113110 (2012) Laser induced lifetime degradation in p-type crystalline silicon

Ablation efficiency of α-Al2O3 in liquid phase and ambient air by nanosecond laser irradiation

“…Sajti · R. Sattari · B. Chichkov · S. Barcikowski ( ) Laser Zentrum Hannover e.V., Hollerithallee 8,30419 Hannover, Germany e-mail: s.barcikowski@lzh.de Fax: +49-511-2788100 than that in ambient air, yielding the enhancement in the ablation rate and mechanical responses of substrates (e.g., shockwave lasts three times longer when ablating in a liquid). Another study investigated the thickness of the utilized liquid layer and assumed an optimal plasma and shockwave pressure in a specific liquid height [7]. In this high pressure reaction field, during laser ablation in liquids, a cavitation bubble forms which expands, shrinks, and collapses with time [8,9] and is presumed to affect material removal rate.…”

Optimisation of GaAs nanocrystals synthesis by laser ablation in water

“…Laser ablation rate for various pulse energies from 0.4 to 0.94 mJ was obtained by weighing the GaAs wafer before and after 50 s laser irradiation in water and the acquired values are shown in Figure 2. Through the pulse strikes with energies more than 0.94 mJ, the strong shock waves generated on the wafer surface make it break into small pieces [12]. Maximum mass ablation of 980 mgr from target was occurred at 0.94 mJ laser pulse energy during 50 s. In other words, the maximum NP production rate obtained in this study was 19.6 mgr/s.…”

Nonlinear optical response of Mg/MgO structures prepared by laser ablation method

“…In the first stage, after the interplay among magnesium target and laser beam, the high-temperature and high-pressure plasma is generated in the magnesium target and acetone interface. In the next step, the Mg clusters are produced because of successive ultrasonic and adiabatic expansion of the high-temperature and high-pressure magnesium plasma that makes a cold zone of magnesium plume [26,27]. In this experiment, the interval between two consecutive pulses of Nd-YAG laser is 0.005 s (repetition rate is 200 Hz) and it is much longer than the lifetime of the magnesium plasma plume.…”