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Photonic crystal cavities embedded in photonic crystal waveguides are investigated using a nanopositioning photoluminescence mapping technique. Coupled-cavity modes near telecom wavelengths are shown and their suitability for strong light matter interaction discussed.
Microfluidics represents the science and technology that processes or manipulates a small amount of fluid (10−9 to 10−18 litres) with dimensions of tens to hundreds of micrometers in a microfluidic chip. Optofluidics aims in manipulating light and fluid at microscale and exploiting their interaction to create highly versatile devices that have significant scientific interests in many areas. The novelties...
Angular resolved photoluminescence distributions of an opal photonic crystal composed of monodisperse Eu3+/SiO2 core/shell nanospheres are studied with different pumping intensities. Amplified spontaneous is observed at photonic band edges at high power excitation.
We propose and simulate a novel integrated thresholder based on nonlinear silicon microring resonators. By interfering the complementary effects of two resonators, the proposed device achieves a sharp threshold with flat one- and zero-levels.
Site-controlled single photon emitters with emission wavelengths matched to the peak efficiency of silicon single photon detectors were demonstrated using lithographically defined InGaN/GaN quantum dots. A drastic strain-relaxation-induced enhancement of radiative efficiency was observed.
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