27 citations · 51 across the 8 of their papers we have counts for
4 papers · 1 filter
Spectral Geometry and Dispersion-Constrained Projection of Diffusive Fields
Pengfei Zhu, Julien Lecompagnon, Philipp Daniel Hirsch +1
Diffusive fields obey operator-imposed relations between spatial structure and temporal decay, yet conventional spectral filtering selects components primarily according to frequen…
Structured Illumination Scanning Thermography (SISTER)
Pengfei Zhu, Julien Lecompagnon, Philipp Daniel Hirsch +1
Conventional non-invasive photothermal imaging techniques are fundamentally constrained by the diffusive nature of heat transport, which causes severe energy dissipation during sub…
Generalized Virtual-Wave Theory for Photothermal Coherence Tomography under Arbitrary Excitation Toward Non-Contact Industrial Inspection of Composite Materials
Pengfei Zhu, Julien Lecompagnon, Philipp Daniel Hirsch +1
Photothermal imaging is a powerful noncontact and nondestructive technique for subsurface inspection of composite materials, yet its performance is fundamentally limited by the dif…
Laser excited super resolution thermal imaging for nondestructive inspection of internal defects
Samim Ahmadi, Julien Lecompagnon, Philipp Daniel Hirsch +4
A photothermal super resolution technique is proposed for an improved inspection of internal defects. To evaluate the potential of the laser-based thermographic technique, an addit…