Abstract
We present an intensity based iterative diffraction tomography algorithm using Gauss Newton scheme for the reconstruction of refractive index profile of a photonic crystal fiber. This method is superior to the ordinary Fourier Diffraction Tomography algorithm as this does not require the scattered phase; rather the refractive index is recovered from the measurement of normal derivative of intensity. This method is able to recover the refractive index profile of the fiber, but the noise in the data and the interpolation used for the rotation of the object makes the reconstruction very noisy.
© 2016 Optical Society of America
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