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Proceedings Paper

Wavefront control of optical components by laser-ablative figuring
Author(s): Takahisa Jitsuno; Tomoyoshi Akashi; Masahiro Nakatsuka; Sadao Nakai; Keiu Tokumura
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Paper Abstract

A new method for figuring the surface profile of optical plastics and optical glass have been proposed and demonstrated. An ArF excimer laser is used to ablate very thin layer of the surface of the substrates. The shape of the ablated surface is monitored by an interferometer in site condition. The ablation rate of PMMA is 0.08 micrometers per pulse at the energy density of 50 mJ/cm2. The optical glass (BK-7) can be ablated 0.15 micrometers per pulse at the fluence of 1.5 J/cm2.

Paper Details

Date Published: 8 December 1997
PDF: 6 pages
Proc. SPIE 3047, Solid State Lasers for Application to Inertial Confinement Fusion: Second Annual International Conference, (8 December 1997); doi: 10.1117/12.294329
Show Author Affiliations
Takahisa Jitsuno, Osaka Univ. (Japan)
Tomoyoshi Akashi, Osaka Univ. (Japan)
Masahiro Nakatsuka, Osaka Univ. (Japan)
Sadao Nakai, Osaka Univ. (Japan)
Keiu Tokumura, Nippon Aspherical Lens Co. Ltd. (Japan)


Published in SPIE Proceedings Vol. 3047:
Solid State Lasers for Application to Inertial Confinement Fusion: Second Annual International Conference
Michel L. Andre, Editor(s)

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