Ultrasound and photoacoustic dual-mode transceiver integrated optical fiber ultrasonic probe and detection method

Abstract

The invention discloses an ultrasonic and photoacoustic dual-mode transceiver integrated optical fiber ultrasonic probe and a detection method, which belong to the technical field of ultrasonic excitation and detection. It includes a guiding optical fiber, a first wavelength selective transmission film, a wavelength selective absorption film and a second wavelength selective transmission film. When the fiber optic ultrasonic probe works in the ultrasonic mode, the fiber optic probe itself absorbs the excitation light and generates ultrasonic waves, and the ultrasonic waves are transmitted forward and are reflected back to the fiber optic ultrasonic probe by the object to be measured. The image information of the object; when the optical fiber probe works in the photoacoustic mode, the excitation light passes through the optical fiber ultrasonic probe and forwards to the object to be measured, the object to be measured absorbs the excitation light and generates ultrasonic waves, and the optical fiber probe detects the object to be measured by detecting The ultrasonic wave generated by the object obtains the image information of the object to be measured. The invention enables the optical fiber ultrasonic probe to simultaneously realize ultrasonic excitation and ultrasonic detection in two working modes of ultrasonic and photoacoustic.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic excitation and detection, and more particularly relates to an ultrasonic and 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 advantages of short wavelength and strong penetration of ultrasonic waves, and have a wide range of applications in medical imaging, non-destructive testing and other fields. The photoacoustic imaging technology irradiates the excitation light pulse on the object to be tested, and the object to be tested absorbs the laser pulse and generates ultrasonic waves by the photoacoustic effect; the ultrasonic imaging technology generates an ultrasonic pulse through an ultrasonic transducer with ultrasonic excitation function. After reaching the surface of the object to be measured, it is reflected by the object to be mea...

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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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