منابع مشابه
Planar Leaky Light-Guides and Couplers
A quantitative theory of light propagation in a dielectric slab guide with general cladding media is presented. It is based on a plane wave which bounces in a zigzag fashion along the guide as a result of total or partial reflections at the two surfaces of the film. Two mechanisms are considered which contribute to the attenuation of the guide: losses due to absorption in the slab and cladding ...
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T h e light guide properties of p lanar lipid bi layers are discussed a n d e x p e r i m e n t a l l y verified. T h e interaction b e t w e e n the light a n d the const i tuents of t h e bi layer is substant ia l ly increased since the l ight p a t h is as large as the d iameter o f the film, e . g . of the order o f several mil l imeters . T h e influence o f electric fields o n the bi laye...
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Leaky-wave antennas use a traveling wave to radiate continuously along a radiating aperture in order to produce a focused beam of radiation. Planar leaky-wave antennas are particularly attractive since they use simple dielectric layers and/or metallic screens over a grounded substrate layer. A simple source such as a dipole or slot inside the substrate or on the ground plane excites the leaky w...
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Grating couplers are used to efficiently couple light from an optical fibre to a silicon waveguide as they allow light to be coupled into or out from any location on the device without the need for cleaving. However, using the typical surface relief grating fabrication method reduces surface planarity and hence makes further processing more difficult. The ability to manufacture high quality mat...
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ژورنال
عنوان ژورنال: Applied Physics
سال: 1973
ISSN: 0340-3793,1432-0649
DOI: 10.1007/bf00886805