Multiphoton-induced periodic microstructures inside bulk polymers by multibeam femtosecond laser interference

Jinhai Si; Zhichong Meng; Jianrong Qiu; Kazuyuki Hirao

doi:10.1117/12.568161

31 January 2005 Multiphoton-induced periodic microstructures inside bulk polymers by multibeam femtosecond laser interference

Jinhai Si, Zhichong Meng, Jianrong Qiu, Kazuyuki Hirao

Author Affiliations +

Proceedings Volume 5624, Semiconductor and Organic Optoelectronic Materials and Devices; (2005) https://doi.org/10.1117/12.568161
Event: Asia-Pacific Optical Communications, 2004, Beijing, China

Abstract

We report on multiphoton-induced periodic microstructures inside bulk polymers by multibeam interference of femtosecond laser pulses at a wavelength of 800 nm, which is out of the absorption range of the polymer sample. Two-dimensional structures and three-dimensional periodic microstructures were fabricated inside bulk azodye-doped polymethylmethacrylate by four-beam interference and five-beam interference, respectively. The Raman spectra measurements for the photoinduced area of the sample before and after irradiation with the writing light showed that the periodic microstructures probably arose from photoinduced decomposition reaction of azodye molecules through multiphoton absorption. Two-dimensional and three-dimensional periodic microstructures were also fabricated in photopolymerization by four-beam and five-beam laser interference, respectively.

Citation Download Citation

Jinhai Si, Zhichong Meng, Jianrong Qiu, and Kazuyuki Hirao "Multiphoton-induced periodic microstructures inside bulk polymers by multibeam femtosecond laser interference", Proc. SPIE 5624, Semiconductor and Organic Optoelectronic Materials and Devices, (31 January 2005); https://doi.org/10.1117/12.568161

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