Polarization-sensitive swept-source optical coherence tomography with continuous source polarization modulation
スポンサーリンク
概要
- 論文の詳細を見る
This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/oe/abstract.cfm?uri=oe-16-8-5892. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.We present fiber-based polarization-sensitive swept-source optical coherence tomography (SS-OCT) based on continuous source polarization modulation. The light source is a frequency swept laser centered at 1.31 μm with a scanning rate of 20 kHz. The incident polarization is modulated by a resonant electro-optic modulator at 33.3 MHz, which is one-third of the data acquisition frequency. The zeroth- and first-order harmonic components of the OCT signals with respect to the polarization modulation frequency have the polarimetric information of the sample. By algebraic and matrix calculations of the signals, this system can measure the depth-resolved Jones matrices of the sample with a single wavelength scan. The phase fluctuations of the starting trigger of wavelength scan and the polarization modulation are cancelled by monitoring the OCT phase of a calibration mirror inserted into the sample arm. We demonstrate the potential of the system by the measurement of chicken breast muscle and the volumetric measurement of an in vivo human anterior eye segment. The phase retardation image shows an additional contrast in the fibrous tissue such as the collagen fiber in the trabecular meshwork and sclera.
論文 | ランダム
- ドイツ政府の金融機関救済策 (特集 続報・グローバル金融危機)
- 個人マーケット 拡大するドイツの個人投資家向けストラクチャード・プロダクト市場
- 金融機関経営 コメルツ銀行によるドレスナー銀行買収
- ドイツ銀行のアジア戦略 (特集 アジア)
- 個人マーケット ドイツの従業員資本参加制度を巡る最近の動き