Presentation + Paper
15 March 2023 Structuring light by combining spatial modulation and fast angular shaping
Author Affiliations +
Proceedings Volume 12436, Complex Light and Optical Forces XVII; 1243606 (2023) https://doi.org/10.1117/12.2648368
Event: SPIE OPTO, 2023, San Francisco, California, United States
Abstract
The particular capabilities of selected combined adaptive optical systems for laser beam shaping in near infrared were studied. Fast switching sequences were obtained by combining an LCoS-SLM with angular-tuning, piezo-driven MEMS-axicons. By flexibly programming highly localized beams into SLM phase maps, the illumination of MEMS microaxicons, tunable spiral phase plates and Fresnel mirrors was optimized to enable for fast, variable and nondiffracting shaping performance. The approach can be applied to advanced types of optical processors like adaptive autocorrelators, or in micromachining. By varying the divergence of an illuminating beam with a liquid lens, spatio-temporal self-imaging of array patterns known as nondiffracting Talbot effect was demonstrated in adaptive mode with tunable Talbot distances.
Conference Presentation
© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
R. Grunwald, M. Jurke, M. Bock, M. Liebmann, B. P. Bruno, H. Gowda, and U. Wallrabe "Structuring light by combining spatial modulation and fast angular shaping", Proc. SPIE 12436, Complex Light and Optical Forces XVII, 1243606 (15 March 2023); https://doi.org/10.1117/12.2648368
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KEYWORDS
Microelectromechanical systems

Spatial light modulators

Mirrors

Diffraction

Beam shaping

Lens arrays

Reflection

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