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  • 學位論文

極化光學同調斷層攝影術之類比偵測電路設計

Design of analog detection circuit for Polarization Sensitive Optical Coherence Tomography

指導教授 : 郭文娟
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摘要


在這份研究論文中,我們加入兩個解調對數放大器,ㄧ個乘法IC電路,ㄧ個加法電路,和一個相減放大器在傳統的PS-OCT系統中.我們便可以簡單的藉由差動波包偵測方式獲得雙折射參數。因為在兩正交極化狀態中的共路徑背景雜訊可被消除掉,這樣一來便減少了在雙折射量測上的系統誤差。除此之外,由於在干涉訊號中的相位差訊號是藉由類比電路記錄到。因此能大大減少擷取資料所需的時間,論文最後並呈現一種具有微弱雙折射特性的介質,即人類血管的測量結果。

參考文獻


1. D. Huang, E. A. Swanson, C. P. Lin, J. S. Schuman, W. G. Stinson, W. Chang, M. R. Hee, T. Flotte, K. Gregory, C. A. Pufialito, and a. J. G. Fujimoto, "Optical coherence tomography," Science 254, 1178–1181 (1991).
3. M. R. Hee, D. Huang, E. A. Swanson, and a. J. G. Fujimoto, "Polarization sensitive low coherence reflectometer for birefringence characterization and ranging," J. Opt. Soc. Am B 9, 903-908 (1992).
4. E. R. Pimentel, "Form birefringence of collagen bundles," Acta. Histochem. Cytochem 14, 35-41 (1981).
5. T. Karlsmark, H. K. Thomsen, L. Danielsen, O. Aalund, O. Nielsen, K. G. Nielsen, and a. I. K. Genefke, "The morphogenesis of electrically an heat-induced dermal changes in pig skin," Forensic Sci. Int 39, 175-188 (1988).
6. A. P. Hollander, T. F. Heathfield, C. Webber, Y. Iwata, R. Bourne, C. Rorabeck, and a. A. R. Poole, "Increased damage to type II collagen in osteoarthritic articular cartilage detected by new immunoassay," J. Clin. Invest 93, 1722-1732 (1994).

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