“…As a result of which, many methods have been proposed to measure them, including microwave [1,2], optical fiber luminosity probe [3], spectroscopy [4][5][6], Rayleigh scattering [7] as well as optical computerized tomography (OCT) [8][9][10][11][12][13][14][15]. Among all the methods, OCT is famous for the real-time, stable and non-contact characteristics, and it can supply 3-D distributions with high temporal and spatial resolutions.…”