研究生: |
張廷宇 Ting-Yu Chang |
---|---|
論文名稱: |
利用貝索光束達到高景深的掃頻式光學同調斷層攝影術 Extended Focus Depth for Swept-Source Optical Coherence Tomography by Using Bessel Beam |
指導教授: |
郭文娟
Kuo, Wen-Chuan |
學位類別: |
碩士 Master |
系所名稱: |
光電工程研究所 Graduate Institute of Electro-Optical Engineering |
論文出版年: | 2011 |
畢業學年度: | 99 |
語文別: | 中文 |
論文頁數: | 51 |
中文關鍵詞: | 景深 、貝索光束 、掃頻式光學同調斷層攝影術 、軸稜鏡 |
英文關鍵詞: | Depth of field, Bessel beam, Swept source optical coherence tomography, Axicon |
論文種類: | 學術論文 |
相關次數: | 點閱:179 下載:0 |
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在本篇研究中,我們利用了頂角為165度的軸稜鏡(Axicon lens)產生貝索光束,並結合掃頻式光學同調斷層顯微術來提升橫向解析度。根據我們實驗的結果,在景深1.29mm的範圍內我們量測到的橫向解析度光點大小為~5微米,其靈敏度約為~94dB。
In this study, a swept source optical coherence tomography (SS-OCT) system that profits from the enhanced lateral resolution performance of Bessel beam illumination was developed. Using an axicon lens with a top angle of 165 degree, nearly constant lateral resolution of ~ 5 micro meter over a focusing depth of at least 1.29 mm is demonstrated with an invariant sensitivity of ~ 94 dB.
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