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Proceedings Paper

Distortion-compensated multifocusing of ultrashort pulse beams using a cascade optical system
Author(s): J. Amako; H. Nakano
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Paper Abstract

We propose a cascade optical system for multifocusing ultrashort pulse beams. In this system, diffractive and refractive subsystems that are optically coupled in cascade correct chromatic aberrations, a phase plate compensates for angular dispersions, and material dispersions are removed by pre-chirping the input pulse. Achromaticity of the system is essential for simultaneous compensation of spatio-temporal pulse distortions. We designed a system by applying the aberration correction conditions derived from an ABCD-matrix analysis. The designed system was evaluated with 20-fs pulses by characterizing the transmitted pulses in beam width and pulse duration to verify the proposed distortion compensation scheme. This technology enables high-throughput ultrafast laser processing.

Paper Details

Date Published: 19 February 2018
PDF: 9 pages
Proc. SPIE 10522, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XVIII, 1052217 (19 February 2018); doi: 10.1117/12.2288507
Show Author Affiliations
J. Amako, Toyo Univ. (Japan)
H. Nakano, Toyo Univ. (Japan)


Published in SPIE Proceedings Vol. 10522:
Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XVIII
Peter R. Herman; Michel Meunier; Roberto Osellame, Editor(s)

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