Title :
Flat focusing mirrors
Author :
Staliunas, K. ; Cheng, Y.C. ; Kicas, S. ; Trull, J. ; Cojocaru, C. ; Peckus, M. ; Vilaseca, R. ; Drazdys, R.
Author_Institution :
Dept. de Fis. i Eng. Nucl., Univ. Politec. de Catalunya, Terrassa, Spain
Abstract :
We present the flat focusing mirror - the dielectric mirrors capable to focus and image the narrow beams in reflections. The mirrors are flat, and transversally invariant, i.e. have no optical axis. We consider two different configurations of such mirrors: 1) Bragg-like mirrors, consisting of structure of specially designed dielectric layers; 2) periodically modulated surface on a subwavelength scale. We also discuss the combined case - the longitudinally chirped photonic crystals.
Keywords :
Bragg gratings; laser mirrors; optical focusing; photonic crystals; Bragg-like mirrors; dielectric layers; dielectric mirrors; flat focusing mirrors; longitudinally chirped photonic crystals; narrow beams; periodically modulated surface; subwavelength scale; Chirp; Dispersion; Focusing; Gratings; Laser beams; Mirrors; Reflection;
Conference_Titel :
Transparent Optical Networks (ICTON), 2015 17th International Conference on
Conference_Location :
Budapest
DOI :
10.1109/ICTON.2015.7193406
