Abstract: The disclosure relates to wavelength-controlled directivity of all-dielectric optical nano-antennas. One example embodiment is an optical nanoantenna for directionally scattering light in a visible or a near-infrared spectral range. The optical nanoantenna includes a substrate. The optical nanoantenna also includes an antenna structure disposed on the substrate. The antenna structure includes a dielectric material having a refractive index that is higher than a refractive index of the substrate and a refractive index of a surrounding medium. The antenna structure includes a structure having two distinct end portions. The antenna structure is asymmetric with respect to at least one mirror reflection in a plane that is orthogonal to a plane of the substrate.

Abstract: A radio frequency coil apparatus for a magnetic resonance imaging system comprising an inductor circular carrier, a first capacitor circular carrier, and a second capacitor circular carrier. A plurality of inductor bars are provided at intervals on the inductor circular carrier. A plurality of first capacitor elements are provided on the first capacitor circular carrier, the first capacitor circular carrier being configured to be detachably connected to one end of the inductor circular carrier, the plurality of first capacitor elements being configured to be connected to one end of the plurality of inductor bars. A plurality of second capacitor elements are provided on the second capacitor circular carrier, the second capacitor circular carrier being configured to be detachably connected to the other end of the inductor circular carrier, the plurality of second capacitor elements being configured to be connected to the other end of the plurality of inductor bars.

Abstract: The present invention provides a photocurable composition prepared using mercapto benzophenone compounds as key raw materials. The present invention aims to solve the problems existing in the prior photo-curing technology that low-molecular photoinitiators are easy to remain and migrate, while macromolecular photoinitiators has low initiation efficiency due to a low content of effective components and also has the problem of certain migration. The photocurable composition in the present invention can be easily prepared and has high addition efficiency with ethylenically unsaturated compounds, and the photocurable composition obtained by addition has no residual mercapto and has features of high initiation activity and zero migration rates when it is used in photocurable coatings, binder and ink formula.

Abstract: The present invention provides a photocurable composition prepared using mercapto benzophenone compounds as key raw materials. The present invention aims to solve the problems existing in the prior photo-curing technology that low-molecular photoinitiators are easy to remain and migrate, while macromolecular photoinitiators has low initiation efficiency due to a low content of effective components and also has the problem of certain migration. The photocurable composition in the present invention can be easily prepared and has high addition efficiency with ethylenically unsaturated compounds, and the photocurable composition obtained by addition has no residual mercapto and has features of high initiation activity and zero migration rates when it is used in photocurable coatings, binder and ink formula.

Abstract: A method for manufacturing a SERS sensing device (100), the method comprising: providing a silicon substrate (101), creating a silane layer (102) on a surface of the silicon substrate (101), and creating a plurality of plasmonic nanostructures (103) on the silane layer (102), characterized in that: creating a plurality of plasmonic nanostructures (103) on the silane layer (102) comprises completely covering the silane layer (102) with a metallic plasmonic layer (104). Further a SERS sensing device is presented which is implantable.

Abstract: The present invention provides a photocurable composition prepared using mercapto benzophenone compounds as key raw materials. The present invention aims to solve the problems existing in the prior photo-curing technology that low-molecular photoinitiators are easy to remain and migrate, while macromolecular photoinitiators has low initiation efficiency due to a low content of effective components and also has the problem of certain migration. The photocurable composition in the present invention can be easily prepared and has high addition efficiency with ethylenically unsaturated compounds, and the photocurable composition obtained by addition has no residual mercapto and has features of high initiation activity and zero migration rates when it is used in photocurable coatings, binder and ink formula.