A loss-free compact dielectric microcylinder acting as an optical resonator is studied in the present work by means of the spectral element method. A specific whispering gallery mode (WGM) supported by the structure is ...

An adaptive graded index photonic crystal (GRIN PC) lens system is designed by using liquid crystal (LC) infiltration. LCs have the property to change their refractive indices when an external voltage is applied. This ...

A photonic nanojet is a highly focused optical beam with a subwavelength waist on the shadow side of the dielectric microsphere or microcylinder. In this paper, photonic nanojets resulting from corrugated cylinders (with ...