Experimental and computational results for 1054-nm laser-induced shock effects in confined meteorite and metallic targets

John L. Remo; Peter X. Hammerling

doi:10.1117/12.407384

16 August 2000 Experimental and computational results for 1054-nm laser-induced shock effects in confined meteorite and metallic targets

John L. Remo, Peter X. Hammerling

Author Affiliations +

Proceedings Volume 4065, High-Power Laser Ablation III; (2000) https://doi.org/10.1117/12.407384
Event: High-Power Laser Ablation, 2000, Santa Fe, NM, United States

Abstract

When a single-pulse high-power laser irradiates a surface at atmospheric pressure, a laser supported detonation (LSD) wave can form above the target surface. The high-pressure gas behind the LSD wave transfers momentum to the target. The laser target coupling is substantially reduced in vacuum, the coupling coefficient typically being an order of magnitude less than that when an atmosphere is present. Another pressure enhancement technique is to confine the laser-target interface. Confinement or 'tamping' also can substantially increase the momentum coupling to the target. Experiments tend to differ from one another based on the target size (thickness) and confinement geometry. This work describes and compares some experimental results for metallic targets irradiated by 1054 nm radiation in the GW/cm² range and interprets them in terms of simple models. As will be discussed in this paper, such models predict a weak sensitivity to target materials but results are likely to be different for inhomogeneous materials as has been seen in recent experiments on iron-nickel and stony meteorites.

Citation Download Citation

John L. Remo and Peter X. Hammerling "Experimental and computational results for 1054-nm laser-induced shock effects in confined meteorite and metallic targets", Proc. SPIE 4065, High-Power Laser Ablation III, (16 August 2000); https://doi.org/10.1117/12.407384

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available