Graphene all-optical sensor based on nonlinear multimode interference coupler

M. A. A. Hassim; W. Maryam; M. Z. Mat Jafri

doi:10.1117/12.2307341

14 May 2018 Graphene all-optical sensor based on nonlinear multimode interference coupler

M. A. A. Hassim, W. Maryam, M. Z. Mat Jafri

Proceedings Volume 10684, Nonlinear Optics and its Applications 2018; 1068425 (2018) https://doi.org/10.1117/12.2307341
Event: SPIE Photonics Europe, 2018, Strasbourg, France

Abstract

In this paper, we proposed a multipurpose graphene all-optical sensor based on the nonlinear effect in a multimode interference (MMI) coupler. The use of a graphene as a core for this device is because of its high optical nonlinearity value and thin layer which makes its bandgap relatively small. Graphene also has a lot of great characteristics to be used as sensor material such as high thermal and electric conductivity, light yet durable and also almost transparent due to its being a single layer atom. The graphene will be sandwiched with a substrate that have a varying value of refractive index. By changing the refractive value of the substrate, an external wave will interact with the input waveguide thus lead to a change in the intensity of the output waveguide which will be analysis for the sensor output. The result shows the high distinguished changes on modal expansion and output distribution in various refractive indices of surrounding layer.

Citation Download Citation

M. A. A. Hassim, W. Maryam, and M. Z. Mat Jafri "Graphene all-optical sensor based on nonlinear multimode interference coupler ", Proc. SPIE 10684, Nonlinear Optics and its Applications 2018, 1068425 (14 May 2018); https://doi.org/10.1117/12.2307341

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