It has been long believed that a total mode conversion between longitudinal and shear elastic waves can only be achieved at a certain incidence angle. Here, we show that a total mode conversion can be achieved for a broad range of incidence angles by a specially designed elastic metasurface, namely, transmodal metasurface. From the generalized reflection law, we found that the incident longitudinal wave can be totally converted to a reflected shear wave over a broad range of incidence angles if a sufficiently large phase gradient is introduced at the boundary. Numerical and experimental investigations with a specially engineered transmodal metasurface showed that the total mode conversion can be achieved for wide incidence angles from to , which was impossible to be achieved previously. The proposed idea of the transmodal metasurface can open up an advanced avenue for tailoring elastic wave modes as an outstanding alternative to generating shear waves.
Skip Nav Destination
Article navigation
11 June 2018
Research Article|
June 15 2018
Transmodal elastic metasurface for broad angle total mode conversion
Min Soo Kim;
Min Soo Kim
1
School of Mechanical, Aerospace and Nuclear Engineering, Ulsan National Institute of Science and Technology
, UNIST-gil 50, Eonyang-eup, Ulju-gun, Ulsan 44919, South Korea
Search for other works by this author on:
Woo Rim Lee;
Woo Rim Lee
2
School of Mechanical and Aerospace Engineering, Seoul National University
, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, South Korea
Search for other works by this author on:
Yoon Young Kim
;
Yoon Young Kim
2
School of Mechanical and Aerospace Engineering, Seoul National University
, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, South Korea
Search for other works by this author on:
Joo Hwan Oh
Joo Hwan Oh
a)
1
School of Mechanical, Aerospace and Nuclear Engineering, Ulsan National Institute of Science and Technology
, UNIST-gil 50, Eonyang-eup, Ulju-gun, Ulsan 44919, South Korea
a)Author to whom correspondence should be addressed: [email protected]. Telephone: +82-52-217-3051
Search for other works by this author on:
a)Author to whom correspondence should be addressed: [email protected]. Telephone: +82-52-217-3051
Appl. Phys. Lett. 112, 241905 (2018)
Article history
Received:
April 03 2018
Accepted:
June 05 2018
Citation
Min Soo Kim, Woo Rim Lee, Yoon Young Kim, Joo Hwan Oh; Transmodal elastic metasurface for broad angle total mode conversion. Appl. Phys. Lett. 11 June 2018; 112 (24): 241905. https://doi.org/10.1063/1.5032157
Download citation file:
Pay-Per-View Access
$40.00
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Citing articles via
Roadmap on photonic metasurfaces
Sebastian A. Schulz, Rupert. F. Oulton, et al.
Superconducting flip-chip devices using indium microspheres on Au-passivated Nb or NbN as under-bump metallization layer
Achintya Paradkar, Paul Nicaise, et al.
Related Content
Broad-angle refractive transmodal elastic metasurface
Appl. Phys. Lett. (November 2020)
Fluid-like elastic metasurface
Appl. Phys. Lett. (March 2023)
Inverse design of locally resonant metamaterial with anisotropic mass density for perfect transmodal Fabry–Pérot interference
J. Appl. Phys. (June 2021)
Tunable multifunctional fish-bone elastic metasurface for the wavefront manipulation of the transmitted in-plane waves
J. Appl. Phys. (December 2020)
Monolayer metamaterial for full mode-converting transmission of elastic waves
Appl. Phys. Lett. (August 2019)