Publication # 300

Martina Gerken and David A. B. Miller, "The Relationship between the Superprism Effect in One-Dimensional Photonic Crystals and Spatial Dispersion in Non-Periodic Thin-Film Stacks," Optics Lett. 30, no.18, p.2475-7 (15 Sept. 2005); selected for the October 10, 2005 issue of Virtual Journal of Nanoscale Science & Technology

We derive that, in all-pass (unity amplitude transmittance or reflectance) one-dimensional layered structures, the tangent of the group-propagation angle, the group delay, and the stored energy are approximately proportional. Thus photonic crystal superprisms and spatial dispersion in nonperiodic photonic nanostructures are generally related to wavelength-dependent stored energy in the stack.

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