Optical properties of UT-shaped plasmonic nanoaperture antennas

Mustafa Turkmen; Serap Aksu; A. Engin Çetin; Ahmet A. Yanik; Hatice Altug

doi:10.1117/12.893891

26 September 2011 Optical properties of UT-shaped plasmonic nanoaperture antennas

Mustafa Turkmen, Serap Aksu, A. Engin Çetin, Ahmet A. Yanik, Hatice Altug

Proceedings Volume 8104, Nanostructured Thin Films IV; 81040C (2011) https://doi.org/10.1117/12.893891
Event: SPIE NanoScience + Engineering, 2011, San Diego, California, United States

Abstract

In this paper, we present numerical and experimental results on optical properties of a multi-resonant UT-shaped plasmonic nanoaperture antenna for enhanced optical transmission and near-field resolution. We propose different structure designs in order to prove the effect of geometry on resonance spectrum and near-field enhancement. Theoretical calculations of transmission spectra and field distributions of UT-shaped nano-apertures are performed by using three-dimensional finite-difference time-domain method. The results of these numerical calculations show that transmission through the apertures is indeed concentrated in the gap region. In addition to theoretical calculations, we also performed a lift-off free plasmonic device fabrication technique based on positive resist electron beam lithography (EBL) and reactive ion etching in order to fabricate UT-shaped nanostructures. For further confirmation of the multiresonant behavior, we checked the individual U-and T-shaped nano-aperture antenna responses. We also studied the parameter dependence of the structure to determine the control mechanism of the spectral response. Theoretical calculations are supported with experimental results to prove the enhanced field distribution and multi-resonant behavior which can be suitable for infrared detection of biomolecules, wavelength-tunable filters, optical modulators, and ultrafast switching devices.teInp

Citation Download Citation

Mustafa Turkmen, Serap Aksu, A. Engin Çetin, Ahmet A. Yanik, and Hatice Altug "Optical properties of UT-shaped plasmonic nanoaperture antennas", Proc. SPIE 8104, Nanostructured Thin Films IV, 81040C (26 September 2011); https://doi.org/10.1117/12.893891

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available