TY - JOUR
T1 - Detection of elastic modes in a solid-liquid-solid planar waveguide
AU - Ham-Rodriguez, C. I.
AU - Manzanares-Martinez, J.
AU - Moctezuma-Enriquez, D.
AU - Manzanares-Martinez, B.
N1 - Publisher Copyright:
© 2016 Author(s).
PY - 2016/8/8
Y1 - 2016/8/8
N2 - In this work, we demonstrate that acoustic ultra-short pulses can be used to characterize multiple guided modes in a solid-liquid-solid planar waveguide via the determination of the time of flight (τ) using the Short Time Fourier Transform (STFT). To obtain experimentally τ, we introduce a time dependent ultra-short acoustic signal s(t) at one side of a finite waveguide and we perform the STFT of the outgoing acoustic signal s′(t) from the other side. We have found that this technique is able to discriminate the signature of multiple even and odd modes at the same experimental run.
AB - In this work, we demonstrate that acoustic ultra-short pulses can be used to characterize multiple guided modes in a solid-liquid-solid planar waveguide via the determination of the time of flight (τ) using the Short Time Fourier Transform (STFT). To obtain experimentally τ, we introduce a time dependent ultra-short acoustic signal s(t) at one side of a finite waveguide and we perform the STFT of the outgoing acoustic signal s′(t) from the other side. We have found that this technique is able to discriminate the signature of multiple even and odd modes at the same experimental run.
UR - http://www.scopus.com/inward/record.url?scp=84982163244&partnerID=8YFLogxK
U2 - 10.1063/1.4960976
DO - 10.1063/1.4960976
M3 - Artículo
AN - SCOPUS:84982163244
SN - 0003-6951
VL - 109
JO - Applied Physics Letters
JF - Applied Physics Letters
IS - 6
M1 - 061904
ER -