The purpose of the present invention is to provide a method that can be directly applied to medical optical dynamic therapy, as well as medical optical images, through ultraslow light amplification of phase conjugation waves while significantly increasing an signal to noise ratio (SNR) of an ultrasound modulated optical signal by overcoming the shallow depth of a conventional vivo optical image using a quantum optics phenomenon, ultraslow light and nondegenerate phase conjugation. According to an embodiment of the present invention, in order to achieve the above purpose, an ultraslow light and nondegenerate phase conjugation-based real-time, in-vivo, deep-tissue optical imaging apparatus is disclosed. The optical imaging device includes: a light wave generator transmitting light to a focusing portion; an ultrasonic generator transmitting ultrasonic waves to the focusing portion; a light collector collecting ultrasound modulated light reflected from the focusing portion; and a quantum processor generating nondegenerate phase conjugated light corresponding to the ultrasound modulated light. The nondegenerate phase conjugated light is transmitted from the light collector to the focusing portion to image the focusing portion.
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