The effective use of ultrasound energy in various technological processes largely depends on the type of ultrasonic vibrations. Wide application in practice has found longitudinal ultrasonic fluctuations in connection...
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We analyze spiral nano-waveguides providing parametric gain in meter long lengths with millimetric footprint, considering robustness against fluctuations of core dimensions and curvature dependence of the dispersion p...
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We propose an elastic metasurface composed of specially designed waveguides with single-phase material and different thicknesses for switching on an off the deflection of high frequency SH wave. The waveguides can onl...
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The paper includes novel results for the scattering and localization of a time-harmonic flexural wave by a semi-infinite herringbone waveguide of rigid pins embedded within an elastic Kirchhoff plate. The analytical m...
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We performed the third-order nonlinear characterization of waveguides produced in Gorilla® Glass by fs-laser irradiation. Through the Dispersive-Scan technique, we found that their nonlinear refractive index is l...
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Integrated silicon photonics strip waveguides and grating couplers are developed for mid- infrared (mid-IR) wavelengths at 2.7 µm and 2.9 µm. Waveguide loss is measured as a func- tion of width for 2.7 µ...
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Integrated silicon photonics strip waveguides and grating couplers are developed for mid- infrared (mid-IR) wavelengths at 2.7 µm and 2.9 µm. Waveguide loss is measured as a func- tion of width for 2.7 µm light in the vicinity of a prominent OH absorption band, and a loss of less than 2 dB/cm is recorded for the 1.0 µm width waveguide. A fabrication bias metric is determined for accurately developing grating couplers at 2.9 µm on a 500 nm silicon- on-insulator (SOI), 3 µm buried-oxide substrate. A high resolution measurement scheme is motivated and measurements indicate that these devices will be capable of studying the Se+ donor spin qubit cavity coupling platform proposed by researchers at Simon Fraser University.
Second-order nonlinear effects in silicon have shown great promise for producing all-optical, silicon, CMOS compatible modulators and optical interconnects. This project aims to investigate the enhancement of Chi^2 in...
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Second-order nonlinear effects in silicon have shown great promise for producing all-optical, silicon, CMOS compatible modulators and optical interconnects. This project aims to investigate the enhancement of Chi^2 in silicon due to different waveguide geometries and cladding layers. Initial work will focus on quantifying second-harmonic generation in strip and slot waveguides, and analysing how the different waveguide geometries can enhance this effect.
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