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Elevated Ag nanohole arrays for high performance plasmonic sensors based on extraordinary optical transmission

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Elevated Ag nanohole arrays for high performance plasmonic sensors based on extraordinary optical transmission
นักวิจัย : Zhang, Xuemin , Li, Zibo , Ye, Shunsheng , Wu, Shan , Zhang, Junhu , Cui, Liying , Li, Anran , Wang, Tieqiang , Li, Shuzhou , Yang, Bai
คำค้น : -
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2555
อ้างอิง : Zhang, X., Li, Z., Ye, S., Wu, S., Zhang, J., Cui, L., et al. (2012). Elevated Ag nanohole arrays for high performance plasmonic sensors based on extraordinary optical transmission. Journal of Materials Chemistry, 22(18), 8903-8910. , http://hdl.handle.net/10220/11508 , http://dx.doi.org/10.1039/c2jm30525a
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Journal of materials chemistry
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Label-free molecular sensing is one of the most fascinating applications of recently fast developing plasmonics. However, the implementation of plasmonic sensors in modern analytical systems strongly demands high sensitivity. Herein, by combining colloidal lithography with subsequent isotropic chemical etching of an underlying glass substrate, we report the fabrication of elevated Ag nanohole arrays (EANAs) which exhibit the property of extraordinary optical transmission. Finite-difference time-domain calculations show that the optical properties of the EANAs behave as though floating above the substrate with no support whatsoever. Compared with the original Ag nanohole arrays directly attached to a glass substrate, the refractive index sensitivity of the EANAs increases to 648 nm/RIU from the original 252 nm/RIU. This greatly enhanced sensing performance makes the EANAs very attractive as a platform for plasmonic sensing systems. As a proof-of-concept, we corroborated these findings with the label-free detection of anti-human IgG using the as-prepared EANAs.

บรรณานุกรม :
Zhang, Xuemin , Li, Zibo , Ye, Shunsheng , Wu, Shan , Zhang, Junhu , Cui, Liying , Li, Anran , Wang, Tieqiang , Li, Shuzhou , Yang, Bai . (2555). Elevated Ag nanohole arrays for high performance plasmonic sensors based on extraordinary optical transmission.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Zhang, Xuemin , Li, Zibo , Ye, Shunsheng , Wu, Shan , Zhang, Junhu , Cui, Liying , Li, Anran , Wang, Tieqiang , Li, Shuzhou , Yang, Bai . 2555. "Elevated Ag nanohole arrays for high performance plasmonic sensors based on extraordinary optical transmission".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Zhang, Xuemin , Li, Zibo , Ye, Shunsheng , Wu, Shan , Zhang, Junhu , Cui, Liying , Li, Anran , Wang, Tieqiang , Li, Shuzhou , Yang, Bai . "Elevated Ag nanohole arrays for high performance plasmonic sensors based on extraordinary optical transmission."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2555. Print.
Zhang, Xuemin , Li, Zibo , Ye, Shunsheng , Wu, Shan , Zhang, Junhu , Cui, Liying , Li, Anran , Wang, Tieqiang , Li, Shuzhou , Yang, Bai . Elevated Ag nanohole arrays for high performance plasmonic sensors based on extraordinary optical transmission. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2555.