Customized non-diffracting beams for advanced transparent materials processing

Keyou Chen; Feng Feng; Jonas Kleiner; Daniel Flamm

doi:10.1117/12.2609233

4 March 2022 Customized non-diffracting beams for advanced transparent materials processing

Keyou Chen, Feng Feng, Jonas Kleiner, Daniel Flamm

Proceedings Volume 11991, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XXII; 1199108 (2022) https://doi.org/10.1117/12.2609233
Event: SPIE LASE, 2022, San Francisco, California, United States

Abstract

We report on the design and realization of novel non-diffracting beams for ultrashort laser materials processing. Our method is axicon based and introduces subtle azimuthal modifications to the conical lenses or well-defined misalignments to achieve a set of novel non-diffracting beams. These focus distributions retain all well-known advantages of non-diffracting beams, such as self-healing, high optical efficiency, or possible extreme aspect ratios. Additionally, tailored transverse intensity profiles with, for example, well-defined preferential direction can be generated. Clear advantages for controlling residual stress and crack orientation in glass processing are discussed and results of different micro-machining experiments are presented.

Citation Download Citation

Keyou Chen, Feng Feng, Jonas Kleiner, and Daniel Flamm "Customized non-diffracting beams for advanced transparent materials processing", Proc. SPIE 11991, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XXII, 1199108 (4 March 2022); https://doi.org/10.1117/12.2609233

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