Ultrasonic and opto-acoustic dual-mode transceiving integrated optical fiber ultrasonic probe and detection method

Abstract

The invention discloses an ultrasonic and opto-acoustic dual-mode transceiving integrated optical fiber ultrasonic probe and a detection method, and belongs to the technical field of ultrasonic excitation and detection. The ultrasonic probe comprises a guide optical fiber, a first wavelength selective transmission film, a wavelength selective absorption film and a second wavelength selective transmission film. When the optical fiber ultrasonic probe works in an ultrasonic mode, the optical fiber probe absorbs excitation light and generates ultrasonic waves, the ultrasonic waves are transmitted forwards and reflected back to the optical fiber ultrasonic probe by an object to be detected, and image information of the object to be detected is obtained by detecting reflected ultrasonic wave signals; when the optical fiber probe works in a photoacoustic mode, excitation light penetrates through the optical fiber ultrasonic probe and is transmitted forwards to the object to be detected, the object to be detected absorbs the excitation light and generates ultrasonic waves, and the optical fiber probe obtains image information of the object to be detected by detecting the ultrasonic waves generated by the object to be detected. According to the invention, the optical fiber ultrasonic probe can simultaneously realize ultrasonic excitation and ultrasonic detection in ultrasonic and opto-acoustic working modes.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic excitation and detection, and more specifically relates to an ultrasonic, photoacoustic dual-mode transceiver integrated optical fiber ultrasonic probe and a detection method. Background technique [0002] Photoacoustic imaging and ultrasonic imaging technology take advantage of the short wavelength and strong penetrability of ultrasonic waves, and have a wide range of applications in medical imaging, nondestructive testing and other fields. Photoacoustic imaging technology irradiates excitation light pulses on the object to be measured, and the object to be measured generates ultrasonic waves through the photoacoustic effect after absorbing the laser pulses; ultrasonic imaging technology generates an ultrasonic pulse through an ultrasonic transducer with an ultrasonic excitation function, and the pulse After reaching the surface of the object to be measured, it is reflected by the object to be...

AI Technical Summary

Problems solved by technology

[0004] In view of the defects of the prior art, the purpose of the present invention is to provide an ultrasonic, photoacoustic dual-mode transceiver integrated optical fiber ultrasonic probe and detection method, aiming to solve the technical problem that the existing optical fiber ultrasonic probe cannot realize ultrasonic excitation and ultrasonic detection at the same time

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