41 results about "Plasmon coupling" patented technology

The present disclosures are provided with: a lightbulb unit (10) that has a substrate (22) that transmits light from a plurality of optical connection mechanisms (23) that switch the transmission and the blocking of light from a light-emitting element (25); and a plasmon coupling unit (11) that generates plasmon coupling by means of light entering from the light-emitting element (25) and that is disposed within the lightbulb unit (10). The plasmon coupling unit (11) has: a carrier generation layer (15) wherein a carrier is generated by means of light entering from the light-emitting element (25); and a plasmon excitation layer (17) that has a higher plasma frequency than the frequency of light arising when exciting the carrier generation layer (15) with the light of the light-emitting element (25). A wavevector conversion layer (19) that converts surface plasmons or light generated by the plasmon excitation layer (17) into light at a predetermined angle of emergence, and then radiates said light is provided on a substrate (22). The plasmon excitation layer (17) is sandwiched between a first dielectric layer (16) and a second dielectric layer (18).

A signal transfer link includes a first plasmonic coupler, and a second plasmonic coupler spaced apart from the first plasmonic coupler to form a gap. An insulator layer is formed over end portions of the first and second plasmonic couplers and in and over the gap. A plasmonic conductive layer is formed over the gap on the insulator layer to excite plasmons to provide signal transmission between the first and second plasmonic couplers.

The present invention relates to a metallic device for near-field optical microscopy and spectroscopy, as well as to a method of preparing it. Said device comprises a single body (1) with longitudinal prolongation (2), nanometric apex (4) and has at least one trimming (3) on its surface, being applied as a probe of high optical efficiency, with adequate dimensions and details that enable the best photon-plasmon coupling, enabling the analysis, with high space resolution, of structures of nanometric dimensions with high efficiency and reproducibility.

The present invention includes light valve section (10) having a plurality of shutter mechanisms (14) that switch between a transmitting state and a shading state of light emitted from light emitting element (25); and substrate (16) through which light that exits plurality of shutter mechanisms (14) is transmitted. The display element also has plasmon coupling section (11) that causes plasmon coupling to occur with light that exits the light valve section (10). Plasmon coupling section (11) includes carrier generation layer (17) that generates carriers with incident light that exits light valve section (10), plasmon excitation layer (19) that has a higher plasma frequency than the frequency of light that is generated in carrier generation layer (17) excited with the light emitted from light emitting element (25), and wave number vector conversion layer (22) that converts the light or surface plasmons generated in plasmon excitation layer (19) into light having a predetermined exit angle. Plasmon excitation layer (19) is sandwiched between first dielectric constant layer (18) and second dielectric constant layer (22).

A light-plasmon coupling lens including an optically transparent substrate having a light incident surface and a light-plasmon coupling surface opposite the light incident surface. The light-plasmon coupling surface including at least a set of circular concentric peaks / valleys which form a Fourier sinusoidal pattern in the radial direction of the circular concentric peaks / valleys. A conformal layer of metal is deposited on the light-plasmon coupling surface of the substrate and has aperture at the center of thereof through which plasmons are transmitted. An optical recording medium including a light-plasmon coupling lens.

The present invention provides for a method to increase the triplet yield of a photosensitizer by the coupling to metal surface plasmons which leads to increased singlet oxygen generation by electric field enhancement or enhanced energy absorption of the photosensitizer. The extent of singlet oxygen enhancement can be tuned for applications in singlet oxygen based clinical therapy by modifying plasmon coupling parameters, such as metallic nanoparticle size and shape, photosensitizer / metallic nanoparticle distance, and the excitation wavelength of the coupling photosensitizer.

A light emitting device comprises first and second semiconductor layers (14,16) and an emitting layer (18) between the semiconductor layers (14,16), arranged to form a light emitting diode,-a gap (30) in one of the layers; and a metal (34) located in the gap (30) and near enough to the emitting layer (18) to permit surface plasmon coupling between the metal (34) and the emitting layer (18).