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24 October 2005 Teaching multilayer optical coatings with coaxial cables
J. Cos, M. M. Sánchez-López, J. A. Davis, D. Miller, I. Moreno, P. Velásquez
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Proceedings Volume 9664, Ninth International Topical Meeting on Education and Training in Optics and Photonics; 96640Q (2005) https://doi.org/10.1117/12.2207780
Event: Ninth International Topical Meeting on Education and Training in Optics and Photonics, 2005, Marseille, France
Abstract
We explore the analogies between a system of coaxial cables with periodicity in the impedance, and a system of dielectric stacks with periodicity in the index of refraction. The latter is a photonic crystal with wave propagation control in the optical range, while the former can be regarded as a "coaxial" photonic crystal for radiofrequency control. We reproduce electrical analogs of widely used thin-film optical devices, such as Bragg reflectors, Fabry-Perot resonators and harmonic transmission filters. Coaxial crystals represent an inexpensive way of teaching multilayer optical coatings. We show also that a simple phasor analysis provides an intuitive technique to describe the transmission properties of optical multilayers.
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J. Cos, M. M. Sánchez-López, J. A. Davis, D. Miller, I. Moreno, and P. Velásquez "Teaching multilayer optical coatings with coaxial cables", Proc. SPIE 9664, Ninth International Topical Meeting on Education and Training in Optics and Photonics, 96640Q (24 October 2005); https://doi.org/10.1117/12.2207780
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KEYWORDS
Multilayers
Fourier transforms
Optical coatings
Photonic crystals
Reflectors
Transmittance
Analog electronics
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