Title :
Inhibition of the emission of electromagnetic modes of photonic crystal cavities with a top mirror
Author :
Le Thomas, N. ; Houdré, R.
Author_Institution :
Inst. de Phys. de la Mater. Condensee, Ecole Polytech. Fed. de Lausanne (EPFL), Lausanne, Switzerland
Abstract :
By imaging the angular spectrum of optical modes confined within subwavelength volumes, we investigate the impact of metallic and dielectric surrounding layers on the optical emission properties of planar silicon photonic crystal cavity. By scanning a mirror close to the surface of the cavity, we experimentally show an enhancement of the cavity quality factor Q based on the annihilation of the amplitude of the cavity leaky modes. The experimental observations are in agreement with a model based on transfer matrix formalism.
Keywords :
Q-factor; mirrors; optical waveguides; photonic crystals; silicon; angular spectrum; cavity leaky modes; cavity quality factor; dielectric surrounding layers; electromagnetic modes; metallic surrounding layers; optical emission properties; optical modes; photonic crystal cavities; planar silicon photonic crystal cavity; top mirror; transfer matrix formalism; Cavity resonators; Couplings; Dielectrics; Mirrors; Photonic crystals; Q factor; Silicon; Emission control; Fourier optics; Photonic crystals; Photonic crystals cavity; Purcell effect;
Conference_Titel :
Transparent Optical Networks (ICTON), 2011 13th International Conference on
Conference_Location :
Stockholm
Print_ISBN :
978-1-4577-0881-7
Electronic_ISBN :
2161-2056
DOI :
10.1109/ICTON.2011.5971001
