(波長可変レーザー関連)THE IMPORTANCE OF TUNABLE LASERS IN PHOTOACOUSTIC IMAGING FOR BIOMEDICAL APPLICATIONS

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Laser-based techniques have been gaining more and more popularity in the medical and biomedical fields. In previous posts, we have discussed a wide variety of such applications ranging from Laser Diode Crown Troughing in Dentistry to Laser-Induced Breakdown Spectroscopy (LIBS) in Biomedical Applications, and in this blog post, we are going to take a look at another up and coming technique called Photoacoustic Imaging. Photoacoustic imaging, also known as optoacoustic imaging, is similar to ultrasound imaging whereas the acoustic shock wave (ultrasonic source) is created by localized heating from a q-switched laser. The primary advantage of utilizing photoacoustics, when compared to traditional ultrasonics, arises from because of wavelength dependence of absorption in tissue, therefore using a tunable laser it is possible to generate 3D topographical images with chemical specificity.

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