Laser damage to photo and rubbed liquid crystal alignment materials

Zoey S. Davidson; Jason U. Wallace; Yasaman Sargol Zaei Aval; Nathaniel D. Urban; Stavros G. Demos; Kenneth L. Marshall; Selim Elhadj

doi:10.1117/12.2685244

24 November 2023 Laser damage to photo and rubbed liquid crystal alignment materials

Zoey S. Davidson, Jason U. Wallace, Yasaman Sargol Zaei Aval, Nathaniel D. Urban, Stavros G. Demos, Kenneth L. Marshall, Selim Elhadj

Author Affiliations +

Proceedings Volume PC12726, Laser-Induced Damage in Optical Materials 2023; PC127260W (2023) https://doi.org/10.1117/12.2685244
Event: SPIE Laser Damage, 2023, Dublin/Livermore, California, United States

Conference Poster

Abstract

Our study analyzed the laser-damage threshold of liquid crystal alignment materials, including photoaligned azobenzene, rubbed polyimide, and rubbed nylon. We found that the presence of liquid crystal was necessary to observe variation in damage thresholds among alignment materials. Nylon outperformed photoalignment, which outperformed polyimide. We also investigated the polarization dependence of the damage threshold in ordinary and extraordinary modes at a near-infrared wavelength and found that only the photoalignment material demonstrated polarization sensitivity at our statistical power level. Our results can inform the design of high-power beam-shaping devices for various applications, including fusion, 3-D printing, and defense systems.

Citation Download Citation

Zoey S. Davidson, Jason U. Wallace, Yasaman Sargol Zaei Aval, Nathaniel D. Urban, Stavros G. Demos, Kenneth L. Marshall, and Selim Elhadj "Laser damage to photo and rubbed liquid crystal alignment materials", Proc. SPIE PC12726, Laser-Induced Damage in Optical Materials 2023, PC127260W (24 November 2023); https://doi.org/10.1117/12.2685244

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