Optimal design of bifocal acoustic lens for large volumetric photoacoustic detection using ZEMAX

Huiyan Jiang; Yuwei Zhu; ZouHua Chen; Xiongjun Cao; Xianlin Song

doi:10.1117/12.2603841

31 August 2021 Optimal design of bifocal acoustic lens for large volumetric photoacoustic detection using ZEMAX

Huiyan Jiang, Yuwei Zhu, ZouHua Chen, Xiongjun Cao, Xianlin Song

Proceedings Volume 11907, Sixteenth National Conference on Laser Technology and Optoelectronics; 119073C (2021) https://doi.org/10.1117/12.2603841
Event: Sixteenth National Conference on Laser Technology and Optoelectronics, 2021, Shanghai, China

Abstract

Photoacoustic microscopy imaging is an important imaging method of photoacoustic imaging. It is a new type of biomedical imaging method developed in recent years, which combines the advantages of high contrast of optical imaging and deep penetration of ultrasound imaging. In the photoacoustic microscopy imaging system, the acousto-optic coupling prism is a component for optical transmission and ultrasonic detection. It is usually composed of an irregular prism and a spherical concave acoustic lens at the bottom. Because the acoustic lens has a strong focusing effect on the ultrasonic beam, the depth of field of ultrasonic detection is small. In this regard, this paper constructs a bifocal acoustic lens, which is a biconcave acoustic lens with different radii of curvature, with a small middle focal length and a large edge focal length. However, the acoustic lens will cause the divergence of light. Therefore, this paper uses Zemax to design a collimating lens whose structure is similar to that of the acoustic lens. The concave surface of the collimating lens with different radii of curvature is optimized to achieve the purpose of light convergence. Finally, the resolution of the spot is analyzed to evaluate the optimization effect.The software simulation results show that the double-focus acoustic lens can realize fast large volumetric ultrasonic detection, and effectively improve the detection efficiency of photoacoustic signals. This work has important theoretical guiding significance for the study of photoacoustic microscopy imaging systems for large volumetric ultrasound detection.

Citation Download Citation

Huiyan Jiang, Yuwei Zhu, ZouHua Chen, Xiongjun Cao, and Xianlin Song "Optimal design of bifocal acoustic lens for large volumetric photoacoustic detection using ZEMAX", Proc. SPIE 11907, Sixteenth National Conference on Laser Technology and Optoelectronics, 119073C (31 August 2021); https://doi.org/10.1117/12.2603841

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
5 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Acoustics

Calibration

Imaging systems

Modulation transfer functions

Zemax

Photoacoustic spectroscopy

Image quality

Show All Keywords

Keywords/Phrases

Search In:

Publication Years