Ultra-high-Q TE/TM dual-polarized photonic crystal nanocavities.
We demonstrate photonic crystal nanobeam cavities that support both TE- and TM-polarized modes, each with a Q factor greater than one million and a mode volume on the order of the cubic wavelength. We show that these orthogonally polarized modes have a tunable frequency separation and a high nonlinear spatial overlap. We expect these cavities to have a variety of applications in resonance-enhanced nonlinear optics.
Zhang
Yinan
Y
School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA. yinan@seas.harvard.edu
McCutcheon
Murray W
MW
Burgess
Ian B
IB
Loncar
Marko
M