[HTML][HTML] Towards non-contact photoacoustic imaging
Photoacoustic imaging (PAI) takes advantage of both optical and ultrasound imaging
properties to visualize optical absorption with high resolution and contrast. Photoacoustic …
properties to visualize optical absorption with high resolution and contrast. Photoacoustic …
Recent developments in photoacoustic imaging and sensing for nondestructive testing and evaluation
Photoacoustic (PA) imaging has been widely used in biomedical research and preclinical
studies during the past two decades. It has also been explored for nondestructive testing …
studies during the past two decades. It has also been explored for nondestructive testing …
Shear‐force photoacoustic microscopy: toward super‐resolution near‐field imaging
Optical‐resolution photoacoustic microscopy (OR‐PAM) enables both high‐resolution and
high‐contrast imaging of optical chromophores ranging from biological tissues to inorganic …
high‐contrast imaging of optical chromophores ranging from biological tissues to inorganic …
Enhanced photoacoustic signal processing using empirical mode decomposition and machine learning
In this study, we propose a robust photoacoustic (PA) signal processing framework for a
material independent defect detection using empirical mode decomposition (EMD) and …
material independent defect detection using empirical mode decomposition (EMD) and …
Nondestructive inspection of metallic microstructure chips based on photoacoustic remote sensing microscopy
Nondestructive testing of packaged chips is essential for ensuring product performance, yet
existing methods have serious drawbacks. Here, we apply photoacoustic remote sensing …
existing methods have serious drawbacks. Here, we apply photoacoustic remote sensing …
Method for detecting internal cracks in joints of composite metal materials based on dual-channel feature fusion
D Wang, J Yin, H Wu, B Ge - Optics & Laser Technology, 2023 - Elsevier
Many kinds of products are cast from two or more metals to take advantage of the properties
of different metals. Due to different thermal properties, an air gap may occur between the …
of different metals. Due to different thermal properties, an air gap may occur between the …
[HTML][HTML] In-line imaging and recognition of flip chip fabrication defects by real-time photoacoustic remote sensing system
J Chen, K Ding, Y Pi, S Zhang, J Li, Z Tian - Photoacoustics, 2024 - Elsevier
Microscopic defects in flip chips, originating from manufacturing, significantly affect
performance and longevity. Post-fabrication sampling methods ensure product functionality …
performance and longevity. Post-fabrication sampling methods ensure product functionality …
Multicontrast and Nondestructive Transparent Ultrasound Transducer Based Photoacoustic and Optical Coherence Imaging of Multilayered Electronics
Flexible printed circuit boards (FPCBs) are extensively employed as core components of
modern electronic devices, including mobile and wearable devices and displays, due to …
modern electronic devices, including mobile and wearable devices and displays, due to …
In-Depth Steel Crack Analysis Using Photoacoustic Imaging (PAI) with Machine Learning-Based Image Processing Techniques and Evaluating PAI-Based Internal …
Steel plays an indispensable role in our daily lives, permeating various products ranging
from essential commodities and recreational gears to information technology devices and …
from essential commodities and recreational gears to information technology devices and …
Detection of micro inclusions in steel sheets using high-frequency ultrasound speckle analysis
With the increasing need for steel sheet quality assurance, the detection of micro-scaled
inclusions in steel sheets has become critical. Many techniques have been explored to …
inclusions in steel sheets has become critical. Many techniques have been explored to …