To design and fabricate photonic devices such as single photon emitters
or lasers by using surface plasmon (SP) modes.
Reasons:
Surface Plasmons have potentially smaller mode volume than modes in pure
dielectric. Small mode volumes can enhance light-matter interactions in
either the strong or weak coupling regime.
Enhanced Purcell effect can improve the efficiency of single photon
emitters and realize an implementation for q-bits (quantum nodes).
The design and fabrication of SP cavities are in the nascent
stages.
Challenges:
Design cavities to avoid the high losses of metals in the optical
regime, while also tuning plasmonic cavities for wavelength and output
efficiency.
Accurately modeling metal-dielectric interfaces in the optical
regime.
Optimizing fabrication to involve efficient deposition of metal.