High average power blue generation from a copper vapour laser pumped titanium sapphire laser

Coutts, David W.; Wadsworth, William J.; Webb, C. E.

doi:10.1080/09500349808230909

Cited by 11 publications

(1 citation statement)

References 18 publications

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“…Experimental setup. -The laser system consisted of a copper vapour laser masteroscillator power-amplifier system [18] capable of delivering 3.5 mJ pulses at 510.6 and 578.2 nm with 40 ns pulse duration. The near diffraction-limited beam quality allowed for tight focusing with a doublet achromatic lens (200 mm focal length).…”

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confidence: 99%

The dynamic properties of shock-waves formed during laser ablation at sub-atmospheric pressures

Kapitan¹,

Coutts²

2002

Europhys. Lett.

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The Sedov-Taylor-von Neumann (STN) theory has been shown to accurately describe the dynamic properties of shock-waves generated during pulsed-laser ablation of solid aluminium targets at visible wavelengths (510/578 nm) with 40 ns pulses with energies up to 3.5 mJ. A ballistic pendulum is used to measure the integrated recoil pressure in various inert atmospheres (He, Ne, Ar, Kr, Xe, N2, CO2, SF6) with pressures of 10−2 − 103 mbar. This recoil momentum is found to scale linearly with the background gas pressure P1 and with the square root of the molecular weight M1. More interestingly, the scaling with the ratio of heat capacities γ is verified to be a monotonically increasing function dependent on the form factor of the shock-wave. The validity of a modified STN theory which accounts for the piston mass is assessed.

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confidence: 99%