In situ quantitation of protein adsorption density by integrated optical waveguide attenuated total reflection spectrometry

Langmuir ◽  
1991 ◽  
Vol 7 (5) ◽  
pp. 995-999 ◽  
Author(s):  
S. S. Saavedra ◽  
W. M. Reichert
Keyword(s):  
Protein Adsorption ◽  
Optical Waveguide ◽  
Total Reflection ◽  
Attenuated Total Reflection ◽  
Integrated Optical ◽  
Adsorption Density ◽  
Integrated Optical Waveguide

Quasi-linear response of an integrated optical waveguide sensor by a double output readout method

Optik ◽  
2021 ◽  
pp. 167734
Author(s):  
Hongru Zhang ◽  
Guofang Fan ◽  
Xiaoyu Cai ◽  
Jiasi Wei ◽  
Gaoshan Jing ◽  
...  
Keyword(s):  
Optical Waveguide ◽  
Linear Response ◽  
Integrated Optical ◽  
Integrated Optical Waveguide ◽  
Waveguide Sensor

scholarly journals Toward Chalcogenide Platform Infrared Sensor Dedicated to the In Situ Detection of Aromatic Hydrocarbons in Natural Waters via an Attenuated Total Reflection Spectroscopy Study

Sensors ◽  
2021 ◽  
Vol 21 (7) ◽  
pp. 2449
Author(s):  
Marion Baillieul ◽  
Emeline Baudet ◽  
Karine Michel ◽  
Jonathan Moreau ◽  
Petr Němec ◽  
...  
Keyword(s):  
Natural Water ◽  
Natural Waters ◽  
Total Reflection ◽  
Attenuated Total Reflection ◽  
Infrared Sensor ◽  
Reflection Spectroscopy ◽  
Infrared Spectral ◽  
Micro Sensor ◽  
In Situ Detection

The objective of this study is to demonstrate the successful functionalization of the surface of a chalcogenide infrared waveguide with the ultimate goal of developing an infrared micro-sensor device. First, a polyisobutylene coating was selected by testing its physico-chemical compatibility with a Ge-Sb-Se selenide surface. To simulate the chalcogenide platform infrared sensor, the detection of benzene, toluene, and ortho-, meta- and para-xylenes was efficaciously performed using a polyisobutylene layer spin-coated on 1 and 2.5 µm co-sputtered selenide films of Ge28Sb12Se60 composition deposited on a zinc selenide prism used for attenuated total reflection spectroscopy. The thickness of the polymer coating was optimized by attenuated total reflection spectroscopy to achieve the highest possible attenuation of water absorption while maintaining the diffusion rate of the pollutant through the polymer film compatible with the targeted in situ analysis. Then, natural water, i.e., groundwater, wastewater, and seawater, was sampled for detection measurement by means of attenuated total reflection spectroscopy. This study is a valuable contribution concerning the functionalization by a hydrophobic polymer compatible with a chalcogenide optical sensor designed to operate in the mid-infrared spectral range to detect in situ organic molecules in natural water.

scholarly journals Phase mapping of optical fields in integrated optical waveguide structures

2001 ◽  
Vol 19 (8) ◽  
pp. 1169-1176 ◽  
Author(s):  
M.L.M. Balistreri ◽  
J.P. Korterik ◽  
L. Kiupers ◽  
N.F. van Hulst
Keyword(s):  
Optical Waveguide ◽  
Optical Fields ◽  
Integrated Optical ◽  
Phase Mapping ◽  
Integrated Optical Waveguide

Passive integrated-optical waveguide structures by Ge-diffusion in silicon

1994 ◽  
Vol 12 (5) ◽  
pp. 842-848 ◽  
Author(s):  
J. Schmidtchen ◽  
B. Schuppert ◽  
K. Petermann
Keyword(s):  
Optical Waveguide ◽  
Integrated Optical ◽  
Integrated Optical Waveguide
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