Nanoscale plasmonic waveguides for filtering and demultiplexing devices

A. Akjouj; A. Noual; Y. Pennec; B. Bjafari-Rouhani

doi:10.1117/12.854733

10 May 2010 Nanoscale plasmonic waveguides for filtering and demultiplexing devices

A. Akjouj, A. Noual, Y. Pennec, B. Bjafari-Rouhani

Proceedings Volume 7712, Nanophotonics III; 771231 (2010) https://doi.org/10.1117/12.854733
Event: SPIE Photonics Europe, 2010, Brussels, Belgium

Abstract

Numerical simulations, based on a FDTD (finite-difference-time-domain) method, of infrared light propagation for add/drop filtering in two-dimensional (2D) Ag-SiO₂-Ag resonators are reported to design 2D Y-bent plasmonic waveguides with possible applications in telecommunication WDM (wavelength demultiplexing). First, we study optical transmission and reflection of a nanoscale SiO₂ waveguide coupled to a nanocavity of the same insulator located either inside or on the side of a linear waveguide sandwiched between Ag. According to the inside or outside positioning of the nanocavity with respect to the waveguide, the transmission spectrum displays peaks or dips, respectively, which occur at the same central frequency. A fundamental study of the possible cavity modes in the near-infrared frequency band is also given. These filtering properties are then exploited to propose a nanoscale demultiplexer based on a Y-shaped plasmonic waveguide for separation of two different wavelengths, in selection or rejection, from an input broadband signal around 1550 nm. We detail coupling of the 2D add/drop Y connector to two cavities inserted on each of its branches.

Citation Download Citation

A. Akjouj, A. Noual, Y. Pennec, and B. Bjafari-Rouhani "Nanoscale plasmonic waveguides for filtering and demultiplexing devices", Proc. SPIE 7712, Nanophotonics III, 771231 (10 May 2010); https://doi.org/10.1117/12.854733

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