12 citations · 16 across the 6 of their papers we have counts for
6 papers
An accurate measurement of parametric array using a spurious sound filter topologically equivalent to a half-wavelength resonator
Woongji Kim, Beomseok Oh, Junsuk Rho +1
Parametric arrays (PA) offer exceptional directivity and compactness compared to conventional loudspeakers, facilitating various acoustic applications. However, accurate measuremen…
Underwater Willis lens for broadband low-frequency focusing
Beomseok Oh, Dongwoo Lee, Yeon-Seong Choo +4
Broadband underwater sound focusing in the low-frequency range is essential for various applications such as battery-free environmental monitoring and sensing. However, achieving l…
Bound States-to-Bands in the Continuum in Cylindrical Granular Crystals
Yeongtae Jang, Seokwoo Kim, Dongwoo Lee +2
We theoretically investigate and experimentally demonstrate that genuine bound states in the continuum (BICs) -- polarization-protected BICs -- can be completely localized within f…
Demonstrating a Bi-directional Asymmetric Frequency Conversion in Nonlinear Phononic Crystals
Yeongtae Jang, Beomseok Oh, Eunho Kim +1
Beyond the constraints of conservative systems, altering wave propagation frequency emerges as a crucial factor across diverse physical domains. This Letter demonstrates bi-directi…
Physics-informed discrete element modeling for the bandgap engineering of cylinder chains
Yeongtae Jang, Eunho Kim, Jinkyu Yang +1
We propose an efficient method to build a simple discrete element model (DEM) that accurately simulates the oscillation of a continuum beam. The DEM is based on the Timoshenko beam…
Conformally mapped black hole effect in elastic curved continuum
Dongwoo Lee, Yiran Hao, Jeonghoon Park +3
We present a black hole effect by strategically leveraging a conformal mapping in elastic continuum with curved-space framework, which is less stringent compared to a Schwarzschild…