Abstract
In this report, we demonstrate multi-functional light emitter based
on band-edge modes near $\Gamma$-point in a two-dimensional honeycomb photonic crystal slab. Different
band-edge modes near $\Gamma$-point are identified, including the monopole $(\Gamma_{2})$, dipole $(\Gamma _{4, 5})$, and quadrupole $(\Gamma _{6, 7})$ modes.
The monopole and quadrupole modes lasing are observed with high side-mode
suppression-ratio of 35 dB and high index sensitivity of 375 nm per refractive
index unit, which shows their potential in optical micro-laser and index sensor
applications. Over five-fold photoluminescence enhancement with broad band-width
of 100 nm from the dipole mode is also observed at room temperature, which
shows the advantage of honeycomb lattice structure for designing high brightness
light emitting diodes.
© 2011 IEEE
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription