Abstract
All-optically integrated photoacoustic (PA) and optical coherence tomography (OCT) dual-mode imaging technology that could offer comprehensive pathological information for accurate diagnosis in clinic has gradually become a promising imaging technology in the aspect of biomedical imaging during the recent years. This review refers to the technology aspects of all-optical PA detection and system evolution of optically integrated PA and OCT, including Michelson interferometer dual-mode imaging system, Fabry–Perot (FP) interferometer dual-mode imaging system and Mach–Zehnder interferometer dual-mode imaging system. It is believed that the optically integrated PA and OCT has great potential applications in biomedical imaging.
Highlights
As a newly noninvasive biomedical imaging technology, photoacoustic imaging (PAI) can specically detect the optical absorption information of biological tissue, which has rapidly developed in recent years.[1,2]
The schematic diagram of the dual-mode PAM– optical coherence tomography (OCT) imaging system based on the Mach–Zehnder detector is shown in Fig. 7.19 Aber-optic Mach– Zehnder interferometer is applied for PAI
We have reviewed recent advances in PA and OCT dual-mode imaging system by using all-optical PA detection method
Summary
As a newly noninvasive biomedical imaging technology, photoacoustic imaging (PAI) can specically detect the optical absorption information of biological tissue, which has rapidly developed in recent years.[1,2] When the pulsed laser irradiates biological tissue, the absorber within tissue absorbs the light energy to cause local rapid temperature rise, and temperature rising causes the thermal expansion to produce the pressure wave, called the PA e®ect.[3,4] PA signal carrying tissue absorption information is detected by ultrasonic transducer and the image of the absorption structure of the tissue is reconstructed by imaging algorithm.[5,6] The PAI combines the advantages of high resolution, high contrast of optical imaging and high This is an Open Access article published by World Scientic Publishing Company. An outlook about all-optical dual-mode imaging system is present
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