Modelling and analysis of bow tie nanoptenna
Taksali, Sandhya Sharma
Gyan Vihar University, India
Received May 13, 2013
This paper focuses on the optical
characterization of nano optical antenna structure which is termed as
nanoptenna. Generally, the dimensions of antenna are of the order of the
radiation wavelength and therefore creates the need of designing antenna at nano
scale for visible portion of optical spectrum (400nm-800nm) i.e. nanoptenna.
When two triangular pieces of gold are placed side by side with the apices
facing one another, the capacitive coupling between them will generate even
higher fields than those generated by an isolated particle. This Bowtie
structure is preferred here because it offers extraordinary field confinement
and a broadband spectral response as it contains Moreover; the enhanced field
via the strong light spot produced by the nanopntenna is highly dependent on its
nanoptenna, bowtie, nano, optical spectrum, antenna.