Revisiting the Bragg reflector to illustrate modern developments in optics
La Rocca, G.C.
American Journal of Physics
American Association of Physics Teachers
A series of thin layers of alternating refractive index are known to make a good optical mirror over certain bands of frequency. Such a device, often termed the Bragg reflector, is usually introduced to students in isolation from other parts of the curriculum. Here, we show that the basic physics of wave propagation through a stratified medium can be used to illustrate some more modern developments in optics and quantum physics, from transfer matrix techniques to the optical properties of cold trapped atoms and optomechanical cooling. We also show a simple example of how such systems exhibit an appreciable level of optical nonreciprocity.
Engineering and Physical Sciences Research Council (EPSRC)
National Natural Science Foundation of China
National Basic Research Program of China
Azione Integrata MIUR
Fondo di Ateneo of Brescia University
Copyright © 2014 American Association of Physics Teachers
Vol. 82 (3), article 206
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