A theoretical insight into the use of ...
Document type :
Article dans une revue scientifique: Article original
Title :
A theoretical insight into the use of anti-reflective coatings for the upliftment of sensitivity of surface plasmon resonance sensors
Author(s) :
Das, Chandreyee Manas [Auteur]
CNRS International - NTU - Thales Research Alliance [CINTRA]
Ouyang, Qingling [Auteur]
Dinh, Xuan-Quyen [Auteur]
School of Electrical and Electronic Engineering [EEE]
Coquet, Philippe [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Yong, Ken-Tye [Auteur]
School of Electrical and Electronic Engineering [EEE]
CNRS International - NTU - Thales Research Alliance [CINTRA]
Ouyang, Qingling [Auteur]
Dinh, Xuan-Quyen [Auteur]
School of Electrical and Electronic Engineering [EEE]
Coquet, Philippe [Auteur]

Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Yong, Ken-Tye [Auteur]
School of Electrical and Electronic Engineering [EEE]
Journal title :
Optics Communications
Pages :
124748
Publisher :
Elsevier
Publication date :
2020-03
ISSN :
0030-4018
English keyword(s) :
Anti-reflective coating
Evanescent field
Sensitivity improvement
Surface plasmon resonance
TiO2/SiO2 sensor
Evanescent field
Sensitivity improvement
Surface plasmon resonance
TiO2/SiO2 sensor
HAL domain(s) :
Sciences de l'ingénieur [physics]
English abstract : [en]
Surface Plasmon Resonance (SPR) based biosensors have been around in the scientific community for more than two decades and these have facilitated enormous improvement in the detection of complex biomolecules. Since, ...
Show more >Surface Plasmon Resonance (SPR) based biosensors have been around in the scientific community for more than two decades and these have facilitated enormous improvement in the detection of complex biomolecules. Since, sensitivity of these sensors directly affects the ease of detection, our work here focuses on using dielectric nanosheets of Titania and Silica to enhance the sensitivity. The anti-reflective property of these dielectric materials promotes greater interaction between the incident light and the plasmonic metal, resulting in generation of more surface plasmons that promotes greater sensitivity. With 40 nm of gold, 3 layers of Titania (9 nm) and a layer of Silica (3 nm), our simulation results predict a sensitivity of 214 deg/RIU at 532 nm, which is a major improvement when compared to other sensor structures.Show less >
Show more >Surface Plasmon Resonance (SPR) based biosensors have been around in the scientific community for more than two decades and these have facilitated enormous improvement in the detection of complex biomolecules. Since, sensitivity of these sensors directly affects the ease of detection, our work here focuses on using dielectric nanosheets of Titania and Silica to enhance the sensitivity. The anti-reflective property of these dielectric materials promotes greater interaction between the incident light and the plasmonic metal, resulting in generation of more surface plasmons that promotes greater sensitivity. With 40 nm of gold, 3 layers of Titania (9 nm) and a layer of Silica (3 nm), our simulation results predict a sensitivity of 214 deg/RIU at 532 nm, which is a major improvement when compared to other sensor structures.Show less >
Language :
Anglais
Peer reviewed article :
Oui
Audience :
Internationale
Popular science :
Non
Source :