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Proceedings Paper

Ultrashort ring-Airy laser beams for advanced materials engineering
Author(s): Maria Manousidaki; Vladimir Yu. Fedorov; Dimitrios G. Papazoglou; Maria Farsari; Stylianos Tzortzakis
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Paper Abstract

Ultrashort ring-Airy laser beams with tunable characteristics are experimentally generated and employed for the advanced fabrication of large 3D structures with high resolution using multiphoton polymerization. These beams can be adjusted to abruptly autofocus over an extended range of working distances while keeping almost invariant their voxel shape and dimensions. This striking property together with the real-time controlled focus tuning, through a spatial light modulator, make them ideal candidates for long range multiphoton polymerization. Moreover, the paraxial ring-Airy beams can approach the wavelength limit when scaling down, while observing a counterintuitive, strong enhancement of their focal peak intensity. Using numerical simulations, we show that this behavior is a result of the coherent constructive action of paraxial and nonparaxial energy flow.

Paper Details

Date Published: 2 October 2019
PDF: 7 pages
Proc. SPIE 11168, Advanced Manufacturing Technologies for Micro- and Nanosystems in Security and Defence II, 1116802 (2 October 2019);
Show Author Affiliations
Maria Manousidaki, Foundation for Research and Technology-Hellas (Greece)
Univ. Crete (Greece)
Vladimir Yu. Fedorov, Texas A&M Univ. at Qatar (Qatar)
P. N. Lebedev Physical Institute of the RAS (Russian Federation)
Dimitrios G. Papazoglou, Foundation for Research and Technology-Hellas (Greece)
Univ. Crete (Greece)
Maria Farsari, Univ. Crete (Greece)
Stylianos Tzortzakis, Foundation for Research and Technology-Hellas (Greece)
Univ. Crete (Greece)
Texas A&M Univ. at Qatar (Qatar)


Published in SPIE Proceedings Vol. 11168:
Advanced Manufacturing Technologies for Micro- and Nanosystems in Security and Defence II
Andrea Camposeo; Yuris Dzenis; Maria Farsari; Luana Persano, Editor(s)

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