Non-resonant Bragg scattering four-wave mixing at near-visible wavelengths in low-confinement silicon nitride waveguides.

Quantum state coherent frequency conversion processes-such as Bragg-scattering four-wave mixing (BSFWM)-hold promise as a flexible technique for networking heterogeneous and distant quantum systems. In this Letter, we demonstrate BSFWM within an extended (1.2-m) low-confinement silicon nitride waveguide and show that this system has the potential for near-unity frequency conversion in visible and near-visible wavelength ranges.

Personal Agency and Community Resilience: Narratives of Women Navigating Health Care With Chronic Lyme Disease.

Chronic Lyme disease can manifest as a debilitating illness with symptoms that change over time. With its varied presentation, timeline variation, diagnostic difficulty, and lack of definitive treatment, clinical recognition of chronic Lyme disease remains controversial. At the same time, patients face challenges in finding a provider who is supportive and knowledgeable about diagnosing and treating Lyme.

Structural and Photoelectric Properties of Epitaxially Grown Vanadium Dioxide Thin Films on c-Plane Sapphire and Titanium Dioxide.

Vanadium dioxide (VO) is one of the most extensively studied materials in the strongly correlated electron family capable of sustaining an insulator-to-metal transition. Here we present our studies of high-quality thin films of epitaxially grown VO on c-AlO(0001) and TiO(001) via reactive DC pulsed magnetron sputtering. We present the structural transition probed via Reflection High Energy Electron Diffraction (RHEED) for the first time and we correlate the surface microstructure measurements with simulations before, during, and after the thermally induced transition.

Insulator to metal transition induced by surface plasmon polaritons in VO/Au thin films.

We report on a new mechanism capable of inducing the insulator-metal transition (IMT) in VO via surface plasmon polaritons (SPP). Our theoretical model predicts that for a bilayer Au-VO sample an enhanced electromagnetic energy density at the Au-VO interface will occur at 1064nm laser wavelength when SPPs are excited in the Au layer. This effect can assist the IMT in the VO layer and at the same time, the SPP absorption can be used to detect it.

Surface plasmon resonance modulation in nanopatterned Au gratings by the insulator-metal transition in vanadium dioxide films.

Correlated experimental and simulation studies on the modulation of Surface Plasmon Polaritons (SPP) in Au/VO2 bilayers are presented. The modification of the SPP wave vector by the thermally-induced insulator-to-metal phase transition (IMT) in VO2 was investigated by measuring the optical reflectivity of the sample. Reflectivity changes are observed for VO2 when transitioning between the insulating and metallic states, enabling modulation of the SPP in the Au layer by the thermally induced IMT in the VO2 layer.