Drawing Dispersion Curves: Band Structure Customization via Nonlocal Phononic Crystals.

Kazemi, Arash; Deshmukh, Kshiteej J; Chen, Fei; Liu, Yunya; Deng, Bolei; Fu, Henry Chien; Wang, Pai

Kazemi, Arash; Deshmukh, Kshiteej J; Chen, Fei; Liu, Yunya; Deng, Bolei; Fu, Henry Chien; Wang, Pai.

Afiliación

Kazemi A; Department of Mechanical Engineering, University of Utah, Salt Lake City, Utah 84112, USA.
Deshmukh KJ; Department of Mathematics, University of Utah, Salt Lake City, Utah 84112, USA.
Chen F; Department of Mechanical Engineering, University of Utah, Salt Lake City, Utah 84112, USA.
Liu Y; Department of Mechanical Engineering, University of Utah, Salt Lake City, Utah 84112, USA.
Deng B; Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
Fu HC; Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
Wang P; Department of Mechanical Engineering, University of Utah, Salt Lake City, Utah 84112, USA.

Phys Rev Lett ; 131(17): 176101, 2023 Oct 27.

Article en En | MEDLINE | ID: mdl-37955491

ABSTRACT

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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Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2023 Tipo del documento: Article País de afiliación: Estados Unidos

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