Polarization-Controlled Nonlinear Computer-Generated Holography

Ackermann L, Roider C, Cvecek K, Barré N, Aigner C, Schmidt M (2023)

Publication Type: Journal article, other

Publication year: 2023


Article Number: 10338

Journal Issue: 13

URI: https://www.nature.com/articles/s41598-023-37443-z

DOI: 10.1038/s41598-023-37443-z

Open Access Link: https://doi.org/10.1038/s41598-023-37443-z


Dynamic phase-only beam shaping with a liquid crystal spatial light modulator is a powerful technique for tailoring the beam's intensity profile or wave front. While shaping and controlling the light field is a highly researched topic, dynamic nonlinear beam shaping has hardly been explored so far. One potential reason is that generating the second harmonic is a degenerate process as it mixes two fields at the same frequency. To overcome this problem, we propose the use of type II phase matching as a control mechanism to distinguish the two involved fields. We experimentally demonstrate that arbitrary intensity distributions can be shaped in the frequency-converted field at the same quality as for linear beam shaping and with conversion efficiencies similar to the case without beam shaping. We envision this technique as a milestone towards beam shaping beyond the physical limits of liquid crystal displays, i.e. facilitating dynamic phase-only beam shaping in the ultraviolet spectral range.

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Ackermann, L., Roider, C., Cvecek, K., Barré, N., Aigner, C., & Schmidt, M. (2023). Polarization-Controlled Nonlinear Computer-Generated Holography. Scientific Reports, 13. https://doi.org/10.1038/s41598-023-37443-z


Ackermann, Lisa, et al. "Polarization-Controlled Nonlinear Computer-Generated Holography." Scientific Reports 13 (2023).

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