Mie resonances and bonding in photonic crystals
Condensed Matter Theory Group, Blackett Laboratory,
Imperial College, London SW7 2BZ, UK
Accepted: 24 October 1997
Isolated dielectric spheres support resonant electromagnetic (EM) modes which are analogous to electronic orbitals and, like their electronic counterparts, can form bonding or anti-bonding interactions between neighbouring spheres. By irradiating the system with light at the bonding frequency an attractive interaction is induced between the spheres. We suggest that by judicious selection of bonding states we can drive a system towards a desired structure, rather than rely on the structure dictated by gravitational or Van der Waals forces, the latter deriving from the zero point energy population of a state.
PACS: 42.25.Fx – Diffraction and scattering / 42.70.Qs – Photonic bandgap materials / 42.65.Vh – Other nonlinear optical phenomena
© EDP Sciences, 1997