Enhancement of microcavity lifetimes using highly dispersive materials.
We show analytically and numerically that highly dispersive media can be used to drastically increase lifetimes of high- Q microresonators. In such a resonator, lifetime is limited either by undesired coupling to radiation, or by intrinsic absorption of the constituent materials. The presence of dispersion weakens coupling to the undesired radiation modes and also effectively reduces the material absorption.
Soljacić
Marin
M
Physics Department, MIT, Cambridge, Massachusetts 02139, USA.
Lidorikis
Elefterios
E
Hau
Lene Vestergaard
LV
Joannopoulos
J D
JD