Laser-matter-interactions in switching spatial light modulator multilayer device structures for high power applications

Selim Elhadj; Zoey Davidson; Yasaman Sargol; Sanam Nahaei

doi:10.1117/12.2685123

24 November 2023 Laser-matter-interactions in switching spatial light modulator multilayer device structures for high power applications

Selim Elhadj, Zoey Davidson, Yasaman Sargol, Sanam Nahaei

Author Affiliations +

Proceedings Volume PC12726, Laser-Induced Damage in Optical Materials 2023; PC1272603 (2023) https://doi.org/10.1117/12.2685123
Event: SPIE Laser Damage, 2023, Dublin/Livermore, California, United States

Abstract

An optically addressed light valve is described for high-speed laser beam shaping used in rapid metal additive manufacturing [1]. The resulting Area Printing™ delivers shaped high-power pulses to a metal powder bed that locally sinters and melts to consolidate into a fully dense metal part. This technology and device enable scaling, cheaper additive manufacturing with high spatial resolution and greater efficiency with minimal spatter defects. We address here the unique optoelectronic properties and challenges related to optically addressed photoconducting insulator that control the switching dynamics under high intensity laser irradiation. Further description is presented of the device-level thermomechanical analysis from parasitic absorption of the laser at kW to MW power levels. [1] https://www.seurat.com/area-printing

Conference Presentation

Citation Download Citation

Selim Elhadj, Zoey Davidson, Yasaman Sargol, and Sanam Nahaei "Laser-matter-interactions in switching spatial light modulator multilayer device structures for high power applications", Proc. SPIE PC12726, Laser-Induced Damage in Optical Materials 2023, PC1272603 (24 November 2023); https://doi.org/10.1117/12.2685123

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