TY - JOUR
T1 - Bidirectional elastic diode with frequency-preserved nonreciprocity
AU - fang, xin
AU - Wen, Jihong
AU - Cheng, Li
AU - Li, Baowen
N1 - Funding Information:
X.F. and J.-H.W. are funded by the National Natural Science Foundation of China (Projects No. 12002371, No. 11991032, and No. 11991034).
Publisher Copyright:
© 2021 American Physical Society.
PY - 2021/5
Y1 - 2021/5
N2 - The study of nonreciprocal wave propagation is of great interest for both fundamental research and engineering applications. Here we demonstrate theoretically and experimentally a bidirectional, nonreciprocal, and high-quality diode that can rectify elastic waves in both forward and backward directions in an elastic metamaterial designed to exhibit enhanced nonlinearity of resonances. This diode can preserve or vary frequency, rectify low-frequency long wave with small system size, offer high-quality insulation, can be modulated by amplitude, and break reciprocity of both the total energy and fundamental wave. We report three mechanisms to break reciprocity: The amplitude-dependent band gap combining interface reflection, chaotic response combining linear band gap, amplitude-dependent attenuation rate in damping diode. The bidirectional diode paves ways for mutually controlling information and energy transport between two sources, which can be used as wave insulators.
AB - The study of nonreciprocal wave propagation is of great interest for both fundamental research and engineering applications. Here we demonstrate theoretically and experimentally a bidirectional, nonreciprocal, and high-quality diode that can rectify elastic waves in both forward and backward directions in an elastic metamaterial designed to exhibit enhanced nonlinearity of resonances. This diode can preserve or vary frequency, rectify low-frequency long wave with small system size, offer high-quality insulation, can be modulated by amplitude, and break reciprocity of both the total energy and fundamental wave. We report three mechanisms to break reciprocity: The amplitude-dependent band gap combining interface reflection, chaotic response combining linear band gap, amplitude-dependent attenuation rate in damping diode. The bidirectional diode paves ways for mutually controlling information and energy transport between two sources, which can be used as wave insulators.
UR - http://www.scopus.com/inward/record.url?scp=85106336081&partnerID=8YFLogxK
U2 - 10.1103/PhysRevApplied.15.054022
DO - 10.1103/PhysRevApplied.15.054022
M3 - Journal article
AN - SCOPUS:85106336081
SN - 2331-7019
VL - 15
JO - Physical Review Applied
JF - Physical Review Applied
IS - 5
M1 - 054022
ER -