Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Generation and monitoring of cavitation with an optical resolution photoacoustic microscope

Not Accessible

Your library or personal account may give you access

Abstract

An optical resolution photoacoustic microscopy (OR-PAM) setup was used to generate transient cavitation on a strongly absorbing target. The cavitation bubble dynamics were monitored with an optical probe beam, which was guided collinearly and confocally with the excitation laser pulses. Simultaneously, the acoustic transients occurring during initiation and collapse of the bubbles were measured with a probe beam deflection method. With 25 nJ pulse energy, cavitation bubbles of 15 to 20 µm maximum diameter were generated around a carbon fiber. Bubble properties, such as its expansion speed and lifetime were observed with the optical signal, which showed oscillations caused by interference after reflection at the bubble walls. The acoustic signal provided additional measurements of the bubble lifetime. The proposed method can be used to investigate the influence of cavitation on the acoustic OR-PAM signal and to monitor theranostic applications of cavitation bubbles.

© 2019 SPIE/OSA

PDF Article
More Like This
Laser-induced cavitation bubble reconstruction based on the Fresnel optical propagation

Luis Felipe Devia-Cruz, Victoria Ramos, Santiago Camacho-López, Victor Ruiz-Cortés, Francisco Pérez-Gutiérrez, and Guillermo Aguilar
LTu4A.41 Latin America Optics and Photonics Conference (LAOP) 2014

Acoustic resolution photoacoustic microscopy with large area optical ultrasound detection

Robert Nuster, Patrick Rupp, and Guenther Paltauf
11077_50 European Conference on Biomedical Optics (ECBO) 2019

Fast photoacoustic imaging with a line scanning optical-acoustical resolution photoacoustic microscope (LS-OAR-PAM)

Robert Nuster and Guenther Paltauf
95390S European Conference on Biomedical Optics (ECBO) 2015

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved