In this Letter, we address the question of physical validity of differential Mueller matrix. A parameterization of entries of this differential matrix is proposed. It ensures that the generators associated with depolarization terms lead to physical Mueller matrices as for the nondepolarizing terms. A general expression for the depolarizing part of the differential matrix is found and a way to compute the nonlinear relations between the parameters is proposed.
© 2013 Optical Society of America
Original Manuscript: February 12, 2013
Revised Manuscript: March 18, 2013
Manuscript Accepted: March 21, 2013
Published: April 24, 2013
Vincent Devlaminck, Patrick Terrier, and Jean-Michel Charbois, "Physically admissible parameterization for differential Mueller matrix of uniform media," Opt. Lett. 38, 1410-1412 (2013)