Polarized Cohernct Detection Imaging in Scattering Media

• Main Authors: Peng Lee-Cheng, 彭莉真
• Other Authors: Chien Chou
• Format: Others
• Language: zh-TW
• Published: 2000
• Online Access: http://ndltd.ncl.edu.tw/handle/05751651891169391125

碩士 === 國立陽明大學 === 放射醫學科學研究所 === 88 === A method that uses a Zeeman laser in conjunction with a Glan-Thompson analyzer to image the object in turbid media is proposed. The heterodyne signal was generated only when the scattering photons were partially polarized and the spatial coherence was not seriously degraded after propagating in turbid media. To combine the polarization discrimination and the optical coherence detection imaged the object in scattering medium was demonstrated. The scattering medium was the polystyrene microsphere solution of 1.072 mm in diameter that was suspended in water in 10 mm thickness. The optical system which performs the advantages of better selectivity of the weakly partial polarized scattering photons and higher signal to noise ratio (SNR) is discussed.