RICE UNIVERSITY Manipulation of Electromagnetic Fields with Plasmonic Nanostructures: Nonlinear Frequency Mixing, Optical Manipulation, Enhancement and Suppression of Photocurrent in a Silicon Photodiode, and Surface-Enhanced Spectroscopy
نویسنده
چکیده
Manipulation of Electromagnetic Fields with Plasmonic Nanostructures: Nonlinear Frequency Mixing, Optical Manipulation, Enhancement and Suppression of Photocurrent in a Silicon Photodiode, and Surface-Enhanced Spectroscopy
منابع مشابه
Optical rectification and field enhancement in a plasmonic nanogap.
Metal nanostructures act as powerful optical antennas because collective modes of the electron fluid in the metal are excited when light strikes the surface of the nanostructure. These excitations, known as plasmons, can have evanescent electromagnetic fields that are orders of magnitude larger than the incident electromagnetic field. The largest field enhancements often occur in nanogaps betwe...
متن کاملOptical Chirality Enhancement in Twisted Arrays of Plasmonic Nano-rods
An important property of electromagnetic fields, which arises from the interaction between fields and chiral molecules, is called optical chirality. By enhancing this field property, while maintaining constant input power, we are able to increase absorption of circularly polarized light by chiral molecules of a certain handedness. This enhancement is achieved through the use of achiral plasmoni...
متن کاملPlasmonic Solar Cells, a New Way to Enhance Energy Conversion Efficiency: Analysis and Modeling of Effect of Metal Geometry
In this article, the effect of plasmonic properties of metal nanoparticles with different shapes, and moreover, their plasmonic-photonic interaction, on solar cell performance were investigated and simulated. Because of low conversion efficiency and then high cost of solar cells, it is difficult to commercialize and replace them with conventional energy resources. But in recent years, the plasm...
متن کاملSolar cell efficiency enhancement using a hemisphere texture containing metal nanostructures
One major problem of the conventional solar cells is low conversion efficiency. In this work, we have proposed a new design including hemisphere texturing on top and metallic plasmonic nanostructure under the silicon layer to enhance the optical absorption inside the photosensitive layer. The finite-difference time-domain (FDTD) method has been used to investigate the interaction of light wi...
متن کاملStructural Characteristics of Au-GaAs Nanostructures for Increased Plasmonic Optical Enhancement
This research has been performed to improve upon optical qualities exhibited by metallic-semiconductor nanostructures in terms of their ability to excite electrons and generate current through the fabricated device. Plasmonic interactions become very influential at this scale, and can play an important role in the generation of photocurrent throughout the semiconductor. When the device is fabri...
متن کامل