30 September 2024Challenges in the use of an optically addressable liquid crystal spatial light modulator for fast area printing metal additive manufacturing
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
An optically addressable liquid crystal spatial light modulator (SLM) is used for dynamic laser beam shaping used in a unique, fast metal additive manufacturing process [1]. We address challenges of using our SLM exposed continuously to high power kW-MW lasers. Control of liquid crystals is coupled to the potoexcitation-response of photoconducting insulators that affects contrast, switching speed, and laser power handling. We compare liquid crystal materials laser damage rationalized based on their thermal properties, and highlight device-level stresses via computational modeling. Key areas of liquid crystals and semiconductor properties are presented that impact optically addressed SLM for power switching applications.
[1] https://www.seurat.com/area-printing
Selim Elhadj
"Challenges in the use of an optically addressable liquid crystal spatial light modulator for fast area printing metal additive manufacturing", Proc. SPIE PC13121, Liquid Crystals XXVIII, PC1312102 (30 September 2024); https://doi.org/10.1117/12.3027442
ACCESS THE FULL ARTICLE
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
The alert did not successfully save. Please try again later.
Selim Elhadj, "Challenges in the use of an optically addressable liquid crystal spatial light modulator for fast area printing metal additive manufacturing," Proc. SPIE PC13121, Liquid Crystals XXVIII, PC1312102 (30 September 2024); https://doi.org/10.1117/12.3027442