Morgner U, Drexler W, Kärtner F X, Li X D, Pitris C, Ippen E P, Fujimoto J G
Opt Lett. 2000 Jan 15;25(2):111-3. doi: 10.1364/ol.25.000111.
Spectroscopic optical coherence tomography (OCT), an extension of conventional OCT, is demonstrated for performing cross-sectional tomographic and spectroscopic imaging. Information on the spectral content of backscattered light is obtained by detection and processing of the interferometric OCT signal. This method allows the spectrum of backscattered light to be measured over the entire available optical bandwidth simultaneously in a single measurement. Specific spectral features can be extracted by use of digital signal processing without changing the measurement apparatus. An ultrabroadband femtosecond Ti:Al(2)O(3) laser was used to achieve spectroscopic imaging over the wavelength range from 650 to 1000 nm in a simple model as well as in vivo in the Xenopus laevis (African frog) tadpole. Multidimensional spectroscopic data are displayed by use of a novel hue-saturation false-color mapping.
光谱光学相干断层扫描（OCT）是传统OCT的扩展，用于进行横截面断层扫描和光谱成像。通过检测和处理干涉OCT信号可获得背向散射光的光谱信息。该方法允许在单次测量中同时在整个可用光学带宽上测量背向散射光的光谱。通过使用数字信号处理可以提取特定的光谱特征，而无需改变测量设备。在一个简单模型以及非洲爪蟾蝌蚪的体内，使用超宽带飞秒钛宝石激光器在650至1000nm波长范围内实现了光谱成像。通过使用一种新颖的色调-饱和度假彩色映射来显示多维光谱数据。
