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A silicon-based plasmonic waveguide is designed, fabricated and characterized. A propagation distance of 2.00μm at λ=1550nm was measured and the coupling efficiency to the silicon-on-insulator platform was 38.0%. Scans of telecommunication wavelengths are presented.
—A biosensor application of vertically coupled glass mi-croring resonators with Q ∼ 12 000 is introduced. Using balanced photodetection, very high signal to noise ratios, and thus high sensitivity to refractive index changes (limit of detection of 1.8 × 10 −5 refractive index units), are achieved. Ellipsometry and X-ray pho-toelectron spectroscopy results… (More)
Sub-wavelength plasmonic slot waveguides and broadband couplers were monolithically integrated with Si waveguides on SOI. Plasmonic waveguide propagation length of 6λ was achieved along with a 30% coupling efficiency between the Si and plasmonic waveguides.
Subwavelength hybrid plasmonic waveguides, s-bends and power splitters are demonstrated on an SOI platform. A long plasmonic waveguide propagation length of 40μm and highly efficient coupling to Si photonic waveguides were achieved using simple tapers.
We report the design and realization of a 4th-order pseudo-elliptic microring filter with negative coupling in SOI. Measured filter response showed the effect of coupling phase dispersion and sharp skirt roll-off due to negative coupling.
We report the first experimental realization of conductor-gap-dielectric plasmonic waveguides based on a SU-8 material system with propagation length of 62μm. Compact plasmonic microring resonators are also demonstrated with high intrinsic Q-factor.
Single femtosecond laser pulses are used to modify the surface of c-Si waveguides clad by SiO<sub>2</sub> for permanent tuning of microring resonators. Positive, controllable resonance shifts that vary with fluence are demonstrated, inducing little loss.
Efficient light-to-heat conversion due to ohmic loss in a Au/SiO<sub>2</sub>/SU-8 plasmonic microring resonator was exploited to achieve all-optical switching. We obtained 20 times larger resonance shift in the resonator over similar SU-8 dielectric microrings.