title: Full-range parallel Fourier-domain optical coherence tomography using a spatial carrier frequency.
abstract: We propose a method of parallel full-range Fourier-domain optical coherence tomography (FDOCT) that is capable of acquiring an artifacts-free B-scan image by a single shot of a two-dimensional (2D) CCD camera. This method is based on a spatial carrier technique in which a spatial carrier-frequency is instantaneously introduced into the 2D spectral interferogram registered in parallel FDOCT by using a grating-generated line-reference beam. The spatial-carrier-contained 2D spectral interferogram is processed through Fourier transformation to obtain a complex 2D spectral interferogram, from which a full-range B-scan tomogram is reconstructed. The principle of our method is confirmed by imaging a tropical fish eye's anterior chamber and a shrimp telson in vivo. The suppression ratio of the complex conjugate artifact can reach 36 dB.
authors: Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Jiading District, Shanghai, China.
authors: Bingjie
authors: B
authors: Huang
authors: Peng
authors: P
authors: Bu
authors: Xiangzhao
authors: X
authors: Wang
authors: Nan
authors: N
authors: Nan
authors: Xin
authors: X
authors: Guo
mesh_terms: D000465:Algorithms; D016477:Artifacts; D005583:Fourier Analysis; D007089:Image Enhancement / Q000379:methods*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted