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Updated: Jul 11, 2025
Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
Published on: November 30, 2012
Drawing Dispersion Curves: Band Structure Customization via Nonlocal Phononic Crystals
Arash Kazemi1, Kshiteej J Deshmukh2, Fei Chen1
1Department of Mechanical Engineering, University of Utah, Salt Lake City, Utah 84112, USA.
Abstract:
Dispersion relations govern wave behaviors, and tailoring them is a grand challenge in wave manipulation. We demonstrate the inverse design of phononic dispersion using nonlocal interactions on one-dimensional spring-mass chains. For both single-band and double-band cases, we can achieve any valid dispersion curves with analytical precision. We further employ our method to design phononic crystals with multiple ordinary (roton or maxon) and higher-order (undulation) critical points and investigate their wave packet dynamics.
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