Presentation
8 June 2022 Thermally-induced optical reflection of sound (THORS) in ambient air
Author Affiliations +
Abstract
Thermally-induced optical reflection of sound (THORS) allows for the manipulation of sound waves without the need for traditional acoustically engineered structures. By photo-thermally exciting a medium, with infrared laser light, a barrier can be formed due to abrupt changes in compressibility of the excited medium. In this work, we demonstrate for the first time, the ability to generate THORS barriers in ambient air. Additionally, the temporal dynamics of THORS barriers, in ambient air, were characterized by using ultrasonic transducers.
Conference Presentation
© (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Daniel S. Kazal, Alex J. Reardon, and Brian M. Cullum "Thermally-induced optical reflection of sound (THORS) in ambient air", Proc. SPIE PC12123, Smart Biomedical and Physiological Sensor Technology XIV, PC1212306 (8 June 2022); https://doi.org/10.1117/12.2620079
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KEYWORDS
Thermography

Bioalcohols

Ultrasonics

Gas lasers

Infrared lasers

Structural engineering

Transducers

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