Slot-waveguide biochemical sensor

被引：309
作者：
Barrios, Carlos A.
Gylfason, Kristinn B.
Sanchez, Benito
Griol, Amadeu
Sohlstroem, H.
Holgado, M.
Casquel, R.
机构：
[1] Univ Politecn Madrid, ISOM, ETSI Telecomun, E-28040 Madrid, Spain
[2] Royal Inst Technol KTH, Sch Elect Engn, Microsyst Technol Lab, SE-10044 Stockholm, Sweden
[3] Univ Politecn Valencia, NTC, Valencia, Spain
[4] Univ Politecn Madrid, Ctr Laser, Madrid, Spain
来源：
OPTICS LETTERS | 2007年 / 32卷 / 21期
关键词：
D O I：
10.1364/OL.32.003080
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report an experimental demonstration of an integrated biochemical sensor based on a slot-waveguidemicroring resonator. The microresonator is fabricated on a Si3N4-SiO2 platform and operates at a wavelength of 1.3 mu m. The transmission spectrum of the sensor is measured with different ambient refractive indices ranging from n = 1. 33 to 1.42. A linear shift of the resonant wavelength with increasing ambient refractive index of 212 nm/refractive index units (RIU) is observed. The sensor detects a minimal refractive index variation of 2 X 10(-4) RIU. (c) 2007 Optical Society of America.
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收藏
页码：3080 / 3082
页数：3
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