By making photonic crystals in ferroelectric and ferromagnetic materials, field-provoked tunability of photonic crystals is broadening the interest in new applications of on-chip photonic devices. We report a nano-precise fabrication of various designs of photonic crystals in these non-conventional materials using the focused ion beam milling technique. Standard methods are developed and parameters for different materials are calibrated. Optical responses such as bandgaps and polarization status changing from planar film waveguide system with these patterns have been examined on ferromagnetic materials.
© 2007 Chinese Optics Letters
Ziyou Zhou, Xiaoyue Huang, Raghav Vanga, and Rong Li, "Tunable photonic crystals based on ferroelectric and ferromagnetic materials by focused ion beam," Chin. Opt. Lett. 5, 693-695 (2007)