Rall PL, Pflaum C (2021)
Publication Type: Conference contribution, Conference Contribution
Publication year: 2021
Publisher: Wiley Online Library
Conference Proceedings Title: Volume21, Issue1 Special Issue: 92nd Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM)
Event location: Online / Kassel
Open Access Link: https://doi.org/10.1002/pamm.202100044
High-power laser beams are usually imaged with the help of suitable optics. The propagation of such beams, through optical systems, often result in a focus shift. This is mainly due to the deposited power in the beam acting as a heat source in the optical elements. Finally, the resulting change in temperature leads to both, a deformation of the lens surface, and a change of the refractive index in the lens. Ray tracing and the finite element method are needed in order to analyze the above effects. The accuracy and the computational time of focus shift calculations, in both simulation techniques, are strongly influenced by the interpolation of the data. This paper will present, a newly proposed interpolation method, allowing a fast and accurate interpolation of data using an unstructured finite element grid. This method will specifically focus on the accurate calculation of laser beam thermal load inside an optical lens.
APA:
Rall, P.L., & Pflaum, C. (2021). Ray tracing in thermally loaded optical systems. In Volume21, Issue1 Special Issue: 92nd Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM). Online / Kassel: Wiley Online Library.
MLA:
Rall, Phillip Lino, and Christoph Pflaum. "Ray tracing in thermally loaded optical systems." Proceedings of the GAMM 2021, Online / Kassel Wiley Online Library, 2021.
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