Cavity Enhancement of Single Quantum Dot Emission in the Blue.
Cavity-enhanced single-photon emission in the blue spectral region was measured from single InGaN/GaN quantum dots. The low-Q microcavities used were characterized using micro-reflectance spectroscopy where the source was the enhanced blue output from a photonic crystal fibre. Micro-photoluminescence was observed from several cavities and found to be ~10 times stronger than typical InGaN quantum dot emission without a cavity. The measurements were performed using non-linear excitation spectroscopy in order to suppress the background emission from the underlying wetting layer.
Taylor
Robert A
RA
Jarjour
Anas F
AF
Collins
Daniel P
DP
Holmes
Mark J
MJ
Oliver
Rachel A
RA
Kappers
Menno J
MJ
Humphreys
Colin J
CJ