A noniterative phase retrieval method for coherent anti-Stokes Raman scattering spectrum analysis is presented. This method facilitates the computation of the real and imaginary parts of the effective third-order susceptibility X when only its modulus is known. One obtains this result by approximating the squared modulus |X|<sup>2</sup> by the maximum entropy model and using some <i>a priori</i> information on X.
© 1992 Optical Society of America
Erik M. Vartiainen, "Phase retrieval approach for coherent anti-Stokes Raman scattering spectrum analysis," J. Opt. Soc. Am. B 9, 1209-1214 (1992)