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Interference effects in 157 nm laser ablated cones in polycarbonate and application to spatial coherence measurement

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Abstract

Conical structures formed in 157 nm laser-ablated polycarbonate exhibit a well-defined fringe structure with a period of a few 100 nm surrounding the cone base. Experiments and modelling studies of the interference produced by these micro-conical mirrors are shown to provide a means of measuring the spatial coherence of the highly multi-mode 157 nm laser.

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Authors and Affiliations

  1. Physics Department, University of Hull, Hull, HU6 7RX, UK

    P. E. Dyer, C. D. Walton & R. Zakaria

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  1. P. E. Dyer
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  2. C. D. Walton
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  3. R. Zakaria
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Correspondence to P. E. Dyer.

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Dyer, P.E., Walton, C.D. & Zakaria, R. Interference effects in 157 nm laser ablated cones in polycarbonate and application to spatial coherence measurement. Appl. Phys. A 95, 319–323 (2009). https://doi.org/10.1007/s00339-009-5102-9

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  • DOI: https://doi.org/10.1007/s00339-009-5102-9

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