TY - JOUR
T1 - Photo-thermo-acoustic (PTA) effect of a multilayer composite material with periodic micro-nano structures (PMNS)
T2 - Modeling, simulation and experiment
AU - Li, Renjie
AU - Gao, Yanze
AU - Liu, Weijie
AU - An, Tongtong
AU - Pan, Hongcheng
AU - Mu, Yuan
AU - Yuan, Xujin
N1 - Publisher Copyright:
© 2025
PY - 2025/5
Y1 - 2025/5
N2 - The photo-thermo-acoustic (PTA) effect of a three-layer composite material whose surface is fabricated with many periodic micro-nano structures (PMNS) is investigated in this paper. The material is composed of a silicon substrate, a thermal insulation layer of polyimide, and a light-absorbing layer of aluminum nanoaggregates. We propose a method for analyzing the PTA effect based on the idea of finite element meshing. The PTA conversion processes including the photo-thermal conversion and the thermal-acoustic conversion are quantitatively simulated. The influence of the geometric parameters of the PMNS on the intensity and space distribution of the sound field is analyzed both by simulation and experiment. The results show that fabricating PMNS on composite materials can significantly enhance the PTA effect. And the finite element analyzing method proposed in this paper can correctly describe and predict the PTA effect of composite materials with two-dimensional PMNS. It is also applicable for analyzing the PTA effects of other similar materials or structures.
AB - The photo-thermo-acoustic (PTA) effect of a three-layer composite material whose surface is fabricated with many periodic micro-nano structures (PMNS) is investigated in this paper. The material is composed of a silicon substrate, a thermal insulation layer of polyimide, and a light-absorbing layer of aluminum nanoaggregates. We propose a method for analyzing the PTA effect based on the idea of finite element meshing. The PTA conversion processes including the photo-thermal conversion and the thermal-acoustic conversion are quantitatively simulated. The influence of the geometric parameters of the PMNS on the intensity and space distribution of the sound field is analyzed both by simulation and experiment. The results show that fabricating PMNS on composite materials can significantly enhance the PTA effect. And the finite element analyzing method proposed in this paper can correctly describe and predict the PTA effect of composite materials with two-dimensional PMNS. It is also applicable for analyzing the PTA effects of other similar materials or structures.
KW - Finite element meshing
KW - Periodic micro-nano structures (PMNS)
KW - Photo-thermo-acoustic (PTA) effect
KW - Sound field
UR - http://www.scopus.com/pages/publications/105000338316
U2 - 10.1016/j.photonics.2025.101383
DO - 10.1016/j.photonics.2025.101383
M3 - Article
AN - SCOPUS:105000338316
SN - 1569-4410
VL - 64
JO - Photonics and Nanostructures - Fundamentals and Applications
JF - Photonics and Nanostructures - Fundamentals and Applications
M1 - 101383
ER -