Photoacoustic nondestructive evaluation for material characterization: recent advances and future perspectives
1 School of Information and Electrical Engineering, Hunan University of Science and Technology, Xiangtan, China
2 Hunan Provincial Key Laboratory of Intelligent Control and Maintenance for Complex Systems, Hunan University of Science and Technology, Xiangtan, China
3 Academy of AI and Advanced Technology, Xi’an Jiaotong-Liverpool University, Suzhou, China
4 Ruijin-XJTLU Intelligent Medicine Institute, Xi’an Jiaotong-Liverpool University, Suzhou, China
5 Global College, Shanghai Jiao Tong University, Shanghai, China
  • Volume
  • Citation
    Liang S, Seong M, Chen S. Photoacoustic nondestructive evaluation for material characterization: recent advances and future perspectives. Opt. Photonics Res. 2026(2):0005, https://doi.org/10.55092/opr20260005. 
  • DOI
    10.55092/opr20260005
  • Copyright
    Copyright2026 by the authors. Published by ELSP.
Abstract

Photoacoustic (PA) nondestructive evaluation (NDE) is an emerging material characterization approach that converts optical absorption into acoustic information, enabling simultaneous access to optical absorption, structural features, and depth-dependent properties. Unlike conventional inspection techniques, PA NDE provides unique capabilities for quantitative evaluation of complex materials and structures. This Perspective summarizes recent advances in PA NDE platforms, including PA A-line sensing, PA microscopy, and all-optical PA systems such as PA remote sensing, and highlights their applications in energy storage, semiconductor manufacturing, civil infrastructure, transportation, aerospace, and other industrial fields. Representative examples demonstrate the potential of PA NDE for defect inspection, morphology monitoring, and material property characterization. Future development will require advances in non-contact inspection, wavelength-selective characterization, quantitative signal interpretation, image-based analysis, and measurement standardization. These efforts will be essential for translating PA NDE from laboratory demonstrations into reliable industrial characterization tools.

Keywords

photoacoustic nondestructive evaluation; material characterization; industrial inspection; photoacoustic microscopy; photoacoustic remote sensing; optical absorption contrast; quantitative characterization

Preview