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

Simple yet universal fabrication strategy for a focused photoacoustic transmitter

Not Accessible

Your library or personal account may give you access

Abstract

Aiming to address existing technical challenges and explore a simple yet effective and universal solution for making a polydimethylsiloxane (PDMS)-based focused photoacoustic transmitter, a novel fabrication strategy is proposed. Different from the traditional technical route based on direct photoacoustic layer coating on a rigid concave substrate, it works by utilizing an elastomeric molding process, through which the originally flat photoacoustic conversion layer, consisting of PDMS-candle soot nanoparticles/PDMS-PDMS composite, is transformed into a concave contour with controllable radius of curvature and finally merged into a soft PDMS substrate. For proof-of-concept demonstration, two types of focused photoacoustic transmitters (6.3 mm and 8 mm focal lengths) operating at 5.3 MHz with 6dB bandwidth of 134% are successfully fabricated, showing both distinct acoustic focusing capability and high energy conversion efficiency. Moreover, different from conventional focused counterparts, acoustic signals with nearly symmetric bi-polar waveform can be obtained at the focuses, facilitating ultrasound cavitation-based applications.

© 2019 Optical Society of America

Full Article  |  PDF Article
More Like This
Air-backed photoacoustic transmitter for significantly improving negative acoustic pressure output

Yujie Chen, Qi Li, Haobo Zhu, Yan Wang, Xinyue Zhang, and Hongbin Yu
Opt. Lett. 46(5) 1149-1152 (2021)

Versatile and scalable fabrication method for laser-generated focused ultrasound transducers

E. Aytac-Kipergil, E. J. Alles, H. C. Pauw, J. Karia, S. Noimark, and A. E. Desjardins
Opt. Lett. 44(24) 6005-6008 (2019)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (6)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (1)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Metrics

Select as filters


Select Topics Cancel
© Copyright 2022 | Optica Publishing Group. All Rights Reserved