Photonic Gap Antennas Based on High-Index-Contrast Slot Waveguides
Photonic Gap Antennas Based on High-Index-Contrast Slot Waveguides
Optical antennas made of low-loss dielectrics have several advantages over plasmonic antennas, including high radiative quantum efficiency, negligible heating, and excellent photostability. However, due to weak spatial confinement, conventional dielectric antennas fail to offer light-matter interaction strengths on par with those of plasmonic antennas. We propose here an all-dielectric antenna …