Optical resonance of nanometer scale bow-tie antenna and bow-tie shaped aperture antenna

Design and study the performance of optical nanoantenna

Al-Qadisiyah Journal for Engineering Sciences ◽

10.30772/qjes.v12i2.593 ◽

2019 ◽

Vol 12 (2) ◽

pp. 84-89

Author(s):

Gufran A. Hassan ◽

Jawad A. Hassan

Keyword(s):

Computer Simulation ◽

Intensive Care ◽

Detection Limit ◽

Substrate Material ◽

Nanometer Scale ◽

Optical Antenna ◽

Far Field ◽

Optical Resonance ◽

S Parameter ◽

Bow Tie

Recently, the light metallic interaction of nanostructures has grown to be an area of intensive care research due to advances in modern fabrication techniques. Unique effects have been observed in a nanostructure, and their applications have been found in various areas like in the manipulation of light on the nanometer scale. In this paper Nanoantenna has been introduced and invetigated by studing the effect of changing its parameters such as (shape, length, thickness, and the gap distance between two nanostructures) on the response of the nanoantenna (far field directivity, optical resonance frequency, and S-parameter). Here, a bow tie antenna has been chosen and additional parameters have been considered in the simulation, such as antenna thickness and material, and substrate material . The simulations have been generated using computer simulation technology (CST) studio. Optical antenna is performed from a pair of nanoparticles brought in close nearness, these pairs are separated by small gap to make a high electric field in its gap region. This feature can be employed for biosensing or SERS to improve the detection limit and measure the presence of single molecules.

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Optical resonance coupling in compositionally different nanocube–nanosphere heterodimers

New Journal of Chemistry ◽

10.1039/c9nj00855a ◽

2019 ◽

Vol 43 (18) ◽

pp. 6959-6964 ◽

Cited By ~ 1

Author(s):

Mufasila Mumthaz Muhammed ◽

Junais Habeeb Mokkath

Keyword(s):

Electromagnetic Field ◽

Nanometer Scale ◽

Optical Resonance ◽

Plasmonic Nanoparticle ◽

Resonance Coupling ◽

Optical Applications ◽

Field Enhancements

Plasmonic nanoparticle dimers with interparticle gap distances (d) in the nanometer scale are able to produce huge electromagnetic field enhancements in the gap region, useful for novel optical applications.

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