Integration scanning head for optics, ultrasonic and opto-acoustic multi-mode microscopic imaging

Abstract

The invention relates to an integration scanning head for optics, ultrasonic and opto-acoustic multi-mode microscopic imaging; a two-dimension motor scanning platform driving a pinboard to move, the pinboard, a transfer tube, a screwed tube, and an integrated detector are fixedly connected in sequence; a single-mode fiber arranged on the top of a fiber coupling collimator, the fiber coupling collimator arranged on the top of the screwed tube, and the integrated detector arranged on the bottom of the screwed tube are coaxially arranged in sequence in an axial direction of the transfer tube; an opto-acoustic coupler arranged on the bottom of the scanning head surrounds a portion, exposed outside the bottom of the scanning head, of the integrated detector; the integrated detector is connected with a signal amplifier; a portion of an internal focusing optics camera arranged on the bottom of a housing is exposed outside the housing; a control button controlling the scanning head the move and collect data is arranged on the housing. The integration scanning head can obtain multi-parameter physics information and multi-scale composition images of a detected portion, and belongs to the microscopic imaging and nondestructive test technical field.

Description

technical field [0001] The invention relates to the technical fields of microscopic imaging and non-destructive testing, in particular to an integrated scanning head for optical, ultrasonic and photoacoustic multi-mode microscopic imaging. Background technique [0002] As a new generation of medical imaging method under rapid development, photoacoustic imaging combines the characteristics of optical imaging and ultrasonic imaging, that is, the non-destructive and highly selective excitation characteristics of optical imaging and the low attenuation and high penetration of ultrasonic imaging. sexual characteristics. Photoacoustic imaging technology is based on the photoacoustic effect. When a short-pulse laser irradiates biological tissue, the absorber located in the tissue absorbs the pulsed light energy, thereby heating up and expanding to produce ultrasound, that is, the photoacoustic effect. The photoacoustic imaging method combines the advantages of high contrast of opt...

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Problems solved by technology

However, there are still some deficiencies in the above patents: First, there is no imaging navigation and precise positioning of the detection part, so that the position of the scanning head needs to be corrected repeatedly, which is inconvenient to operate, and the three imaging modes of optical, photoacoustic and ultrasonic cannot be realized It is difficult to provide more useful information; second, the scanning galvanometer structure is used, which cannot realize photoacoustic microscopy imaging in a large field of view; third, the degree of integration is not high, and the dis

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