Abstract
Large-pore Ti O2 inverse opals were fabricated by atomic layer deposition in sintered polystyrene colloidal crystal templates and infiltrated with dual-frequency liquid crystal. The optical properties of the hybrid organic/inorganic structure were characterized by reflectance measurements of the Bragg peak, the position of which was tuned using a frequency dependent applied electric field. A 6 nm blueshift was observed for frequencies less than 13 kHz and a 13 nm redshift for frequencies above 13 kHz. These results demonstrate enhanced optical tunability in three-dimensional photonic crystals and are important for the development of active photonic devices.
Original language | American English |
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Article number | 111101 |
Journal | Applied Physics Letters |
Volume | 91 |
Issue number | 11 |
DOIs | |
State | Published - 10 Sep 2007 |
Keywords
- atomic layer deposition
- colloidal crystals
- electro-optical devices
EGS Disciplines
- Materials Science and Engineering