Direct optimization of femtosecond laser ablation using adaptive wavefront shaping

S. Campbell; S. M F Triphan; Reda Mohamed El-Sayed El-Agmy; A. H. Greenaway; D. T. Reid

doi:10.1088/1464-4258/9/11/022

Direct optimization of femtosecond laser ablation using adaptive wavefront shaping

S. Campbell, S. M F Triphan, Reda Mohamed El-Sayed El-Agmy, A. H. Greenaway, D. T. Reid

School of Engineering & Physical Sciences

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

Abstract

We introduce an approach based on using an iterative simulated annealing algorithm to drive the outcome of femtosecond laser ablation towards a specific target shape by using a two-dimensional deformable mirror. Unlike previous work combining adaptive optics and laser machining we use the machining outcome itself as the fitness parameter for the optimization procedure. Single-pulse ablation features with programmable aspect ratios and dimensions as small as 2.5?m are faithfully reproduced by the technique in a chromium-on-glass test sample. © IOP Publishing Ltd.

Original language	English
Pages (from-to)	1100-1104
Number of pages	5
Journal	Journal of Optics A: Pure and Applied Optics
Volume	9
Issue number	11
DOIs	https://doi.org/10.1088/1464-4258/9/11/022
Publication status	Published - 1 Nov 2007

Keywords

Adaptive optics
Femtosecond laser ablation
Femtosecond machining
Laser machining
Optimization
Simulated annealing
Ti:sapphire

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10.1088/1464-4258/9/11/022

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abstract = "We introduce an approach based on using an iterative simulated annealing algorithm to drive the outcome of femtosecond laser ablation towards a specific target shape by using a two-dimensional deformable mirror. Unlike previous work combining adaptive optics and laser machining we use the machining outcome itself as the fitness parameter for the optimization procedure. Single-pulse ablation features with programmable aspect ratios and dimensions as small as 2.5?m are faithfully reproduced by the technique in a chromium-on-glass test sample. {\textcopyright} IOP Publishing Ltd.",

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AU - Triphan, S. M F

AU - El-Sayed El-Agmy, Reda Mohamed

AU - Greenaway, A. H.

AU - Reid, D. T.

PY - 2007/11/1

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AB - We introduce an approach based on using an iterative simulated annealing algorithm to drive the outcome of femtosecond laser ablation towards a specific target shape by using a two-dimensional deformable mirror. Unlike previous work combining adaptive optics and laser machining we use the machining outcome itself as the fitness parameter for the optimization procedure. Single-pulse ablation features with programmable aspect ratios and dimensions as small as 2.5?m are faithfully reproduced by the technique in a chromium-on-glass test sample. © IOP Publishing Ltd.

KW - Adaptive optics

KW - Femtosecond laser ablation

KW - Femtosecond machining

KW - Laser machining

KW - Optimization

KW - Simulated annealing

KW - Ti:sapphire

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Direct optimization of femtosecond laser ablation using adaptive wavefront shaping

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Keywords

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