Abstract
Preliminary results of an in-plane vibrating system to image objects buried in turbid media are presented. The incident optical beam is vibrated in a periodic back-and-forth motion at low frequency and small constant amplitude in a plane perpendicular to the direction of the beam. The detection is performed in the AC mode, blocking the DC component. The system shows a dramatic increase in the AC signal whenever the target boundary intersects with the reference line between the incident laser beam and a photodiode after a small aperture. The system was capable to render visible 2 mm width objects buried at depths up to 3 cm from the front surface of a 1% intralipid sample.
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Cywiak, D., Cywiak, M., Pérez-Solano, R. et al. Low Frequency Vibrating Optical System for Detecting Objects Buried in Turbid Media: Preliminary Results. Int J Thermophys 33, 2016–2020 (2012). https://doi.org/10.1007/s10765-012-1236-7
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DOI: https://doi.org/10.1007/s10765-012-1236-7