Design of Resonant Optical Nano-Antenna for 1.55µm Wavelength

Author

Zhan, Lingli ; Shi, Jianping ; Wen, Songlin ; Dong, Kexiu

Author_Institution

Dept. of Phys. & Electron. Technol., Anhui Normal Univ., Wuhu, China

fYear

2011

fDate

16-18 May 2011

Firstpage

1

Lastpage

4

Abstract

This paper is on the exploration of near infrared band optical nano-antenna design with the adoption of finite difference time domain method. The design result of 1.55μm optical antenna and its performance are presented. The optimal parameters are: the antenna arm L=330nm, the feedback gap D=20nm, the antenna arm thickness H=20nm, the antenna arm width W=60nm. This antenna can realize enhancement of field intensity about 2000 times for 1.55μm which indicates excellent near field enhancement effects. When wave with incidence angle less than 40°, feedback gap field intensity can be kept to be above 70% of the peak value, the antenna has well directional characteristics.

Keywords

antenna radiation patterns; finite difference time-domain analysis; nanophotonics; optical design techniques; optical elements; optical feedback; antenna arm thickness; directional properties; feedback gap field intensity; finite difference time domain method; incidence angle; near field enhancement effects; near infrared band optical nanoantenna; resonant optical nanoantenna; size 20 nm; wavelength 1.55 mum; Adaptive optics; Antenna feeds; Optical feedback; Optical imaging; Optical reflection; Optical scattering;

fLanguage

English

Publisher

ieee

Conference_Titel

Photonics and Optoelectronics (SOPO), 2011 Symposium on

Conference_Location

Wuhan

ISSN

2156-8464

Print_ISBN

978-1-4244-6555-2

Type

conf

DOI

10.1109/SOPO.2011.5780578

Filename

5780578