Interferometric tunability of the absorption

Abstract

We propose an interferometric setup that permits to tune the quantity of radiation absorbed by an object illuminated by a fixed light source. The method can be used to selectively irradiate portions of an object based on their transmissivities or to accurately estimate the transmissivities from rough absorption measurements.

4 pages, 5 figures. Revised in response to the comments of the referees. Section added with new material