Sökning: "Metasurfaces"
Visar resultat 6 - 10 av 16 avhandlingar innehållade ordet Metasurfaces.
6. Plasmonics with a Twist: from Single Particles to Metasurfaces
Sammanfattning : Nanophotonics deals with how electromagnetic fields can be confined and squeezed to orders of dimensions below the light wavelength. Plasmonics, one of the fields of nanophotonics, study collective free electron oscillations driven by light in metallic nanostructures and interfaces. LÄS MER
7. WO3 for reflective displays in color
Sammanfattning : Reflective displays, also known as electronic paper, are very attractive due to their low power consumption and great visibility under bright ambient light conditions. However, reflective displays in color are still limited on the market for two main reasons. LÄS MER
8. Conjugated polymers on plasmonic metasurfaces for high contrast electronic paper in color
Sammanfattning : Electronic paper is the collective name of displays that, instead of emitting light, reflect the ambient light. These displays are known to have good readability in daylight and very low power consumption. However, there is a lack of electronic paper in color with high contrast and the ability to achieve video speed. LÄS MER
9. Compact RF Integration and Packaging Solutions Based on Metasurfaces for Millimeter-Wave Applications
Sammanfattning : The millimeter-wave frequency range has got a lot of attention over the past few years because it contains unused frequency spectrum resources that are suitable for delivering Gbit/s end-user access in areas with high user density. Due to the limited output power that the current RF active components can deliver in millimeter-wave frequencies, antennas with the features of low profile, high gain, high efficiency and low cost are needed to compensate free space path loss and increase the communication distance for the emerging high data rate wireless systems. LÄS MER
10. High Frequency Microwave and Antenna Devices based on Transformation Optics and Glide-Symmetric Metasurfaces
Sammanfattning : The new generation of wireless communication networks intends to support data rate of Gbit/s. One solution to make it possible is to move upwards in frequency range to employ the unused spectrum in mm-wave frequencies. LÄS MER