Mainz 2026 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 41: Poster – Quantum Technologies II & Laser Technology
Q 41.5: Poster
Mittwoch, 4. März 2026, 17:00–19:00, Philo 2. OG
Simulation-Based Approach for Programming a Spatial Light Modulator for Deterministic fs-Laser Writing of NV-Centers in Diamond — •Julian Staniewski1, Lucas Kirchbach1,2, Andreas Giese2, Bernd Braun2, and Andreas Stute1,2 — 1Faculty of Electrical Engineering, Precision Engineering, Information Technology, Technische Hochschule Nürnberg, Keßlerplatz 12, 90489 Nürnberg — 2Faculty of Applied Mathematics, Physics and Humanities, Technische Hochschule Nürnberg, Keßlerplatz 12, 90489 Nürnberg
To generate deterministically placed vacancies in a diamond crystal, a high spatial-temporal energy density must be achieved in the crystal. Consequently, the wavefront of a fs-laser shall be corrected via a spatial light modulator (SLM) prior to entering the high numerical aperture focusing optics. This work presents an optical model that allows for calculating the phase mask to be imposed by the SLM. To validate the accuracy of the model, crystal samples of different thickness are used in a test setup to intentionally introduce aberrations. The model is verified via comparing such wavefront measurements with the model predictions.
Keywords: NV-Center; SLM; Optical Simulation; Wavefront Sensor; Beam Shaping