Opto-thermal simulation model for optimizing the thermal response of the optical properties of Ce
YAG single-crystal phosphors
- authored by
- Elisavet Chatzizyrli, Angeliki Afentaki, Moritz Hinkelmann, Roland Lachmayer, Jörg Neumann, Dietmar Kracht
- Abstract
As laser diodes (LDs) replace LEDs in the remote phosphor setup, a new class of lighting solutions emerges, giving rise to laser-excited remote phosphor (LERP) systems. While already in use in some commercial applications such as automotive lighting, these systems have not yet matured. The optical behavior of phosphors is temperature dependent, specifically the absorption coefficient, the conversion efficiency reflected in the quantum efficiency (QE) coefficient, and, to a lesser extent, the emission spectrum. For this reason, opto-thermal analysis is critical for further investigating and optimizing these systems. A steady-state opto-thermal simulation scheme that combines ray tracing in OpticStudio software with heat transfer calculations using the finite element method (F.E.M.) in ANSYS is presented and experimentally validated here. Furthermore, the temperature-dependent models established for phosphor properties are used to optimize the phosphor sample.
- Organisation(s)
-
Institute of Motion Engineering and Mechanism Design
PhoenixD: Photonics, Optics, and Engineering - Innovation Across Disciplines
- External Organisation(s)
-
Laser Zentrum Hannover e.V. (LZH)
- Type
- Conference contribution
- Publication date
- 21.09.2021
- Publication status
- Published
- Peer reviewed
- Yes
- ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials, Condensed Matter Physics, Computer Science Applications, Applied Mathematics, Electrical and Electronic Engineering
- Electronic version(s)
-
https://doi.org/10.1117/12.2597095 (Access:
Closed)