Bonn 2025 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 49: Poster – Photonics, Lasers, and Applications
Q 49.34: Poster
Mittwoch, 12. März 2025, 17:00–19:00, Tent
Examination of structures in transparent materials using scanning acoustic microscopy (SAM) — •Cornelia Bauer1, Max Steudel1, Max-Jonathan Kleefoot2, Sebastian Funken2, and Anne Harth1 — 1Center of Optical Technologies, Aalen University, Aalen — 2Laserapplicationcenter, Aalen University, Aalen
Scanning acoustic microscopy is a non-destructive measuring technique to examine biological samples and non-transparent brittle materials. It enables the detection of internal structures and defects without causing damage. An transducer emits ultrasonic waves, which are reflected at acoustic impedance changes. The reflected signal is detected after a specific time delay by the transducer, thereby providing information regarding impedance alterations [1]. In this study, the goal is to investigate micro-scale volume modification in transparent materials using SAM. Inital results include successful measurements of laser modification in bulk fused silica glasses, demonstrating the potential of this approach for high-resolution material analysis [2]. [1] Hyunung Yu. Applied microscopy, 50(1):25, 2020. [2] Max Steudel and et al. Optics express, 32(11):19221*19229, 2024.
Keywords: microscopy; ultrasonic; volume modification; glass materials; high-resolution analysis