A novel nanometeric plasmonic filter in a tooth-shaped metal-insulator-metal waveguide is proposed and demonstrated numerically. An analytic model based on the scattering matrix method is given. The result reveals that the single tooth-shaped filter has a wavelength-filtering characteristic and an ultracompact size in the length of a few hundred nanometers, compared to gratinglike surface plasm...

T ooth-width ratios are used diagnostically to quantify the harmony between the mandibu-lar and maxillary arches. A number of analyses have been developed to compare the tooth-width ratios of malocclusions to standardized norms. 1-4 The Ho-Freer Graphical Analysis of Tooth-Width Discrepancy (GATWD) provides a simple graphic description of tooth-width relationships between the arches, a comprehe...