Design and FDTD simulation of photonic crystal based sensor for biosensing applications

Sello Manoto; Chemist Mabena; Rudzani Malabi; Saturnin Ombinda-Lemboumba; Patience Mthunzi-Kufa

doi:10.1117/12.2509855

7 March 2019 Design and FDTD simulation of photonic crystal based sensor for biosensing applications

Sello Manoto, Chemist Mabena, Rudzani Malabi, Saturnin Ombinda-Lemboumba, Patience Mthunzi-Kufa

Proceedings Volume 10895, Frontiers in Biological Detection: From Nanosensors to Systems XI; 1089510 (2019) https://doi.org/10.1117/12.2509855
Event: SPIE BiOS, 2019, San Francisco, California, United States

Abstract

Photonic crystals (PhCs) is a unique and flexible class of optical devices that are able to manipulate the electromagnetic fields of light. PhCs is a subwavelength grating structure with a periodic arrangement of a high refractive index layer coated on a low refractive index material and can provide a strong light confinement depending on the size, periodicity and the refractive index. Finite difference time domain (FDTD) method can be used to simulate the electromagnetic properties of light through complex structures such as PhCs, because of the precision of the method in the description of geometry and properties of the material. In this study, FDTD software from Lumerical was used to design and simulate the electromagnetic properties of the PhCs based sensor for biosensing applications. The transmission, reflection and absorption characteristics through the proposed PhCs structure was analysed using a visible wavelength range of 400- 700 nm. The boundary conditions were correctly chosen and consisted of periodic boundary conditions and perfectly matched layers. The results revealed that the transmission and reflectance were dependent on the period of the PhCs and the enhanced electric field was confined in an area allowing for interaction with biological analytes.

Citation Download Citation

Sello Manoto, Chemist Mabena, Rudzani Malabi, Saturnin Ombinda-Lemboumba, and Patience Mthunzi-Kufa "Design and FDTD simulation of photonic crystal based sensor for biosensing applications", Proc. SPIE 10895, Frontiers in Biological Detection: From Nanosensors to Systems XI, 1089510 (7 March 2019); https://doi.org/10.1117/12.2509855

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