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Bimetallic silver-gold film waveguide surface plasmon resonance sensor

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Bimetallic silver-gold film waveguide surface plasmon resonance sensor
นักวิจัย : Ong, Biow Hiem , Yuan, Xiaocong , Tjin, Swee Chuan
คำค้น : DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics.
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2550
อ้างอิง : Ong, B. H., Yuan, X., & Tjin, S. C. (2007). Bimetallic silver-gold film waveguide surface plasmon resonance sensor. Fiber and Integrated Optics, 26(4), 229-240. , 0146-8030 , 1096-4681 , http://hdl.handle.net/10220/4368 , http://sfxna09.hosted.exlibrisgroup.com:3410/ntu/sfxlcl3?sid=metalib:CSA_ELECTRONICS&id=doi:&genre=&isbn=&issn=0146-8030&date=2007&volume=26&issue=4&spage=229&epage=240&aulast=Ong&aufirst=%20Biow%20Hiem&auinit=&title=Fiber%20and%20Integrated%20Optics&atitle=Bimetallic%20Silver%2DGold%20Film%20Waveguide%20Surface%20Plasmon%20Resonance%20Sensor , http://dx.doi.org/10.1080/01468030701347106
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Fiber and integrated optics
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

It is desirable that a surface plasmon resonance (SPR) sensor is highly sensitive to binding interactions within the sensing region, generate evanescent fields with long penetration depths, and utilize a metal film that is very stable even in extreme environmental conditions. In this study, we present the first example of a wavelength-modulated waveguide SPR sensor with a bimetallic silver-gold film for surface plasmon excitation. The underlying silver yields better evanescent field enhancement of the sensing surface, while the overlying gold ensures that the stability of the metallic film is not compromised. It is shown experimentally that in terms of dλ/dn, the bimetallic film waveguide SPR configuration has a sensitivity of 1232 nm/RIU, greater than two times improvement from the 594 nm/RIU achievable with single gold film waveguide SPR sensor. The higher sensitivity, compact nature, and better evanescent field enhancement of this configuration provides the potential to biosensing applications.

บรรณานุกรม :
Ong, Biow Hiem , Yuan, Xiaocong , Tjin, Swee Chuan . (2550). Bimetallic silver-gold film waveguide surface plasmon resonance sensor.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Ong, Biow Hiem , Yuan, Xiaocong , Tjin, Swee Chuan . 2550. "Bimetallic silver-gold film waveguide surface plasmon resonance sensor".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Ong, Biow Hiem , Yuan, Xiaocong , Tjin, Swee Chuan . "Bimetallic silver-gold film waveguide surface plasmon resonance sensor."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2550. Print.
Ong, Biow Hiem , Yuan, Xiaocong , Tjin, Swee Chuan . Bimetallic silver-gold film waveguide surface plasmon resonance sensor. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2550.