Light transmission through a Fabry–Perot resonator (FPR) holding a dielectric cylinder rod is considered. For the cylinder parallel to mirrors of the FPR and the mirrors mimicked by the functions we present an exact analytical theory. It is shown that light transmits only for resonant incident angles, , similar to the empty FPR. However after transmission the light scatters into different resonant angles, , performing resonant angular conversion. We compare the theory with experiment in the FPR, exploring multilayer films as the mirrors and glass cylinder with diameter coincided with the distance between the FPR mirrors. The measured values of angular light conversion agree qualitatively with the theoretical results.
© 2014 Optical Society of America
Equations on this page are rendered with MathJax. Learn more.