A relatively simple derivation of the paraxial equation for extraordinary electromagnetic waves in uniaxial media is presented. The propagation of the waves is described with both Abraham’s and Minskowski’s definitions of the electromagnetic momentum. A Gaussian beam is worked out to illustrate the sidewalk effect of extraordinary rays.
© 2010 Optical Society of America
Original Manuscript: December 8, 2009
Manuscript Accepted: January 15, 2010
Published: February 25, 2010
Shahen Hacyan, "Derivation of the paraxial equation for extraordinary waves in uniaxial media," J. Opt. Soc. Am. A 27, 602-604 (2010)