Deubel et al. pioneered the "direct laser writing" method for microfabricating these materials.
Deubel et al. pioneered the "direct laser writing" method for microfabricating these materials. Tuberfield and Denning fabricated these materials by applying a photoresist to the sample, and then exposing to an interference pattern formed by multiple coherent laser beams; that technique is called "holographic lithography." These materials are used to construct air-guiding, hollow-core fibers. Cylindrical holes were arrayed in the pattern of a tetrahedral diamond (*) lattice to produce the first three-dimensional one of these materials, a feat achieved by Eli Yablonovich. A simple 1-D example of these materials contains alternating slabs with varying dielectric constants, which works since incident waves of certain wavelengths will destructively interfere with reflected waves, thus forming a frequency "band gap" which prevents propagation. For 10 points, name these materials through which light propagates in an analogous fashion to how electrons propagate in semiconductors.
Deubel et al. pioneered the "direct laser writing" method for microfabricating these materials.
photonic crystals [or PCs, do NOT prompt on "crystals"]