Beam shaping using two spatial light modulators for ultrashort pulse laser ablation of metals

Dmitriy Mikhaylov; Thomas Kiedrowski; Andrés F. Lasagni

doi:10.1117/12.2508682

4 March 2019 Beam shaping using two spatial light modulators for ultrashort pulse laser ablation of metals

Dmitriy Mikhaylov, Thomas Kiedrowski, Andrés F. Lasagni

Proceedings Volume 10906, Laser-based Micro- and Nanoprocessing XIII; 1090615 (2019) https://doi.org/10.1117/12.2508682
Event: SPIE LASE, 2019, San Francisco, California, United States

Abstract

In this study, an optical setup based on two phase-only spatial light modulators is presented, capable to shape two parallel laser beams. Each of the light modulators creates different and complementary Gaussian multi-spot distributions in the focal plane. By the polarization based combination of two differently shaped beams, a multi-spot beam profile with higher multi-spot density than for a single spatial light modulator setup can be obtained without speckles to appear. Beam shaping results are characterized by means of a beam profile camera and compared to a single spatial light modulator setup. Beam shapes generated by the presented setup are applied to ultrashort pulse laser ablation of metals. The potential of the presented optics is discussed regarding ground roughness and waviness of the ablated structure.

Citation Download Citation

Dmitriy Mikhaylov, Thomas Kiedrowski, and Andrés F. Lasagni "Beam shaping using two spatial light modulators for ultrashort pulse laser ablation of metals", Proc. SPIE 10906, Laser-based Micro- and Nanoprocessing XIII, 1090615 (4 March 2019); https://doi.org/10.1117/12.2508682

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available