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Optical waves in crystals Yariv A., Yeh P.
Publisher: Wiley

This Demonstration shows the effect of the optical element on the polarization of light. Here we describe a new optical biosensor technique based on the registration of dual optical s-polarized waves on a photonic crystal surface. If one wave is going up and interacts with another wave that's going down, they cancel each other and the light has zero intensity. Wave plates and linear polarizers are common optical elements that alter the polarization of light passing through them. Examples of such materials are photonic crystals, which are periodic structures that affect the motion of light in much the same way as crystalline solids affect the flow of electrons. Yeh, Optical Waves in Crystals: Propagation and Control of Laser Radiation, John Wiley and. For disordered structures, random light scattering and interference can produce an effect called localization, in which a light wave becomes "stuck" in closed paths inside the material, bouncing back and forth in complex looping paths called "modes". Ratio of photonic crystal microcavities,” Opt. To exploit THz-wave region, nonlinear optical effects and various optical technology are utilized. The baseline time span for this database is (publication years) 1998-June 30, 2008 from the third bimonthly update (a 10-year + 6-month period). Claus., Semiconductor Optics, 2nd ed., Springe, New York, 2004. (Phys.org) —Researchers have demonstrated a method for 'temporal cloaking' of optical communications, representing a potential tool to thwart would-be eavesdroppers and improve security for telecommunications. Of course Eve could insert her own non-linear crystal along the path and read the infomation.