Arbitrary-lattice photonic crystals created by multiphoton microfabrication

Hong Bo Sun, Ying Xu, Saulius Juodkazis, Kai Sun, Mitsuru Watanabe, Shigeki Matsuo, Hiroaki Misawa, Junji Nishii

Research output: Contribution to journalArticle

222 Citations (Scopus)


We used voxels of an intensely modified refractive index generated by multiphoton absorption at the focus of femtosecond laser pulses in Ge-doped silica as photonic atoms to build photonic lattices. The voxels were spatially organized in the same way as atoms arrayed in actual crystals, and a Bragg-like diffraction from the photonic atoms was evidenced by a photonic bandgap (PBG) effect. Postfabrication annealing was found to be essential for reducing random scattering and therefore enhancing PBG. This technique has an intrinsic capability of individually addressing single atoms. Therefore the introduction of defect structures was much facilitated, making the technique quite appealing for photonic research and applications.

Original languageEnglish
Pages (from-to)325-327
Number of pages3
JournalOptics Letters
Issue number6
Publication statusPublished - 2001 Mar 15

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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    Sun, H. B., Xu, Y., Juodkazis, S., Sun, K., Watanabe, M., Matsuo, S., Misawa, H., & Nishii, J. (2001). Arbitrary-lattice photonic crystals created by multiphoton microfabrication. Optics Letters, 26(6), 325-327.