Bloch-like surface waves in Fibonacci quasi-crystals and Thue-Morse aperiodic dielectric multilayers

Vijay Koju; William M. Robertson

doi:10.1117/12.2237236

26 September 2016 Bloch-like surface waves in Fibonacci quasi-crystals and Thue-Morse aperiodic dielectric multilayers

Vijay Koju, William M. Robertson

Proceedings Volume 9929, Nanostructured Thin Films IX; 99290O (2016) https://doi.org/10.1117/12.2237236
Event: SPIE Nanoscience + Engineering, 2016, San Diego, California, United States

Abstract

Bloch surface waves (BSWs) in periodic dielectric multilayer structures with surface defect have been extensively studied. However, it has recently been recognized that quasi-crystals and aperiodic dielectric multilayers also support Bloch-like surface waves (BLSWs). In this work, we numerically show the existence of BLSWs in Fibonacci quasi-crystals and Thue-Morse aperiodic dielectric multilayers using the prism coupling technique. We compare the surface field enhancement and penetration depth of BLSWs in these structures with that of BSWs in their periodic counterparts.

Citation Download Citation

Vijay Koju and William M. Robertson "Bloch-like surface waves in Fibonacci quasi-crystals and Thue-Morse aperiodic dielectric multilayers", Proc. SPIE 9929, Nanostructured Thin Films IX, 99290O (26 September 2016); https://doi.org/10.1117/12.2237236

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