Share Email Print
cover

Proceedings Paper • new

Graphene all-optical sensor based on nonlinear multimode interference coupler
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper 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.

Paper Details

Date Published: 14 May 2018
PDF: 6 pages
Proc. SPIE 10684, Nonlinear Optics and its Applications 2018, 1068425 (14 May 2018); doi: 10.1117/12.2307341
Show Author Affiliations
M. A. A. Hassim, Univ. Sains Malaysia (Malaysia)
W. Maryam, Univ. Sains Malaysia (Malaysia)
M. Z. Mat Jafri, Univ. Sains Malaysia (Malaysia)


Published in SPIE Proceedings Vol. 10684:
Nonlinear Optics and its Applications 2018
Benjamin J. Eggleton; Neil G. R. Broderick; Anna C. Peacock, Editor(s)

© SPIE. Terms of Use
Back to Top