Tunable Bragg Peak Response in Liquid-Crystal-Infiltrated Photonic CrystalsJournal of the Optical Society of America B (2007)
We report the dependence of the first-order Bragg peak position and width on the liquid-crystal and backbone refractive indices for liquid-crystal-infiltrated large-pore inverse shell opals, which offer increased volume for electro-optic infiltration. We also present the dependence of the photonic response on the template architecture or liquid-crystal volume fraction, which can be manipulated with a multilayer atomic layer deposition process. It is demonstrated from a three-dimensional finite-difference time-domain band structure and transmission–reflection coefficients computations that certain large-pore architectures exhibit an unusual optical response that cannot be explained by a classical Bragg peak theory. These structures potentially offer a pathway for all-optical photonic switching devices.
Publication DateApril 1, 2007
Citation InformationDavy P. Gaillot, Elton Graugnard, Jeffrey S. King and Christopher J. Summers. "Tunable Bragg Peak Response in Liquid-Crystal-Infiltrated Photonic Crystals" Journal of the Optical Society of America B Vol. 24 Iss. 4 (2007)
Available at: http://works.bepress.com/elton_graugnard/16/