Analysis for the sensitivity optimization of integrated optical evanescent wave sensors with grating couplers

2018 ◽  
Author(s):  
Cuma Tyszkiewicz
Keyword(s):  
Evanescent Wave ◽  
Grating Couplers ◽  
Integrated Optical ◽  
Wave Sensors

Embossable grating couplers for planar evanescent wave sensors

2011 ◽  
Vol 19 (1) ◽  
Author(s):  
P. Karasiński
Keyword(s):  
Refractive Index ◽  
Evanescent Wave ◽  
Sol Gel ◽  
Detection Limits ◽  
Effective Index ◽  
Experimental Results ◽  
Grating Couplers ◽  
Gel Method ◽  
Planar Structures ◽  
Wave Sensors

AbstractThe paper presents input grating couplers to be applied in planar evanescent wave sensors. Waveguide films SiO2:TiO2 were obtained using the sol-gel method, and grating couplers with a groove density of 1000 g/mm and 2400 g/mm were produced using the method of master grating embossing in sol film. The influence of refractive index of the cover on incoupling angles was presented. Basing on the experimental results, detection limits involving the changes of effective indexes and refractive indexes of the cover for the investigated planar structures were determined. Sensor structures with the couplers having a groove density of 1000 g/mm enable to detect minimum changes of the effective index below 3.3×10−7 and to detect minimum changes of refractive index of the cover below 2.3×10−6. Detection limits for the structures with couplers having the groove density of 2400 g/mm are over twofold higher.

Ammonia detection via integrated optical evanescent wave sensors

1995 ◽  
Vol 121 (1-4) ◽  
pp. 95-105 ◽  
Author(s):  
Albrecht Brandenburg ◽  
Rainer Edelh�user ◽  
Tobias Werner ◽  
Huarui He ◽  
Otto S. Wolfbeis
Keyword(s):  
Evanescent Wave ◽  
Integrated Optical ◽  
Ammonia Detection ◽  
Wave Sensors

Mid-IR evanescent-wave sensors for tiny biological samples

2000 ◽  
Author(s):  
Sergej V. Shilov ◽  
Mark S. Braiman ◽  
Li Zhi Mi
Keyword(s):  
Biological Samples ◽  
Evanescent Wave ◽  
Wave Sensors

Improved structures for evanescent wave sensors

1995 ◽  
Vol 66 (12) ◽  
pp. 1461-1462 ◽  
Author(s):  
F. Rehouma ◽  
W. Elflein ◽  
D. Persegol ◽  
A. Kevorkian ◽  
G. Clauss ◽  
...  
Keyword(s):  
Evanescent Wave ◽  
Wave Sensors

Investigation of fiber-optic evanescent-wave sensors for detection of liquid hydrocarbons

1998 ◽  
Vol 51 (1-3) ◽  
pp. 152-158 ◽  
Author(s):  
Petr Tobiška ◽  
Miroslav Chomát ◽  
Vlastimil Matějec ◽  
Daniela Berková ◽  
Ivan Hüttel
Keyword(s):  
Evanescent Wave ◽  
Fiber Optic ◽  
Liquid Hydrocarbons ◽  
Wave Sensors

Evanescent wave sensors for mid-IR spectroscopy

2016 ◽  
Author(s):  
S. V. Korsakova ◽  
E. A. Romanova
Keyword(s):  
Ir Spectroscopy ◽  
Evanescent Wave ◽  
Wave Sensors
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