Hologram imaging quality improvement by ionization controlling based on the self-trapped excitons with double-pulse femtosecond laser.

ABSTRACT: Holograms hidden inside transparent materials are important for information encryption storage because of their advantages of secrecy, and could completely avoid information loss caused by surface wear. Inside the transparent material, the modified filaments array was need for hologram fabrication to change the optical phase or amplitude of incident laser, which is sensitive to the change of refractive index. Then the uniformity of modified filaments inside transparent materials is highly required. In this study, by tuning the interval time of the double-pulse processing, holograms with improved imaging quality were fabricated by double-pulse femtosecond laser and the effect and mechanism of self-trapped excitons (STEs) on the ablation have been systematically studied. The imaging quality

SUBMITTER: Wang F 

PROVIDER: S-EPMC11501880 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature