Ultrashort-pulse laser calligraphy

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Abstract

Control of structural modifications inside silica glass by changing the front tilt of an ultrashort pulse is demonstrated, achieving a calligraphic style of laser writing. The phenomena of anisotropic bubble formation at the boundary of an irradiated region and modification transition from microscopic bubbles formation to self-assembled form birefringence are observed, and the physical mechanisms are discussed. The results provide the comprehensive evidence that the light beam with centrosymmetric intensity distribution can produce noncentrosymmetric material modifications. © 2008 American Institute of Physics.

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Yang, W., Kazansky, P. G., Shimotsuma, Y., Sakakura, M., Miura, K., & Hirao, K. (2008). Ultrashort-pulse laser calligraphy. Applied Physics Letters, 93(17). https://doi.org/10.1063/1.3010375

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