Assuming a circularly polarized
input field, any scalar transmission function can be replaced by a unique fringe-orientation function without changing the (monochromatic) optical effect. What’s more, by assuming a linearly polarized input field, one can design
diffractive beam splitters with 100 percent efficiency, a result that is not possible in the realm of scalar optics.
Become a member or log in to view the full text of this article.
OSA Members get the full text of Optics & Photonics News, plus a variety of other member benefits.