Open AccessCooperativity enhancement in buckled-dome microcavities with omnidirectional claddings
Author(s) -
S. Al-Sumaidae,
M. H. Bitarafan,
C. A. Potts,
J. P. Davis,
R. G. DeCorby
Publication year - 2018
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.011201
Subject(s) - optics , omnidirectional antenna , spontaneous emission , materials science , common emitter , q factor , optoelectronics , resonator , physics , antenna (radio) , laser , telecommunications , computer science
We describe a theoretical study of dipole emitters inside buckled-dome Fabry-Perot cavities with Si/SiO 2 -based omnidirectional Bragg mirrors. The low penetration depth of the mirrors contributes to low mode volumes, potentially enabling large enhancement of spontaneous emission into moderate-quality-factor cavity modes. Furthermore, the omnidirectional mirrors can significantly inhibit background emission. For a representative cavity operating in a fundamental spatial mode regime at λ ~1550 nm, and an optimally located emitter, we predict simultaneous enhancement of emission into the cavity mode by ~120 and suppression of background emission by ~25, implying the potential for a cooperativity C ~1500. This is combined with Q ~10 3 , significantly lower than is required to attain similar values of C without background inhibition, and thus implying better compatibility for broad line-width emitters.