| Автор | Ton Koster |
| Автор | Paul Lambeck |
| Дата выпуска | 2002-08-01 |
| dc.description | In this paper, the design, fabrication and characterization of a sensor is presented, optimized for sensing changes of the absorption coefficient of a monomolecular transduction layer, while at the same time being insensitive to environmental absorption changes. A functional analysis of the device is given, relating the effect of technological uncertainties to systematic errors in the determination of the measurand. A physical implementation of the functional design based on dual mode interrogation, using a polarization converter and polarization splitter, is presented and fabricated. From a tolerance analysis, using the values of the applied SiON technology, it was derived that, over a range of 1 decade, this implementation allows for an inaccuracy of an uncalibrated sensor <10%. The performance characteristics of the individual subfunctions are given. Propagation losses are 1.6 dB cm<sup>-1</sup> for both TE and TM polarized light. The relative wavelength shift of the resonance wavelength of the fabricated (grating assisted) polarization converters to its intended value is only 0.002. Experimentally, a 30 times decrease in the sensitivity to the output signal for changes in the absorption of the outer medium, compared to a monomodal sensor, has been observed. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | An integrated optical platform for absorptive sensing of chemical concentrations using chemo-optical monolayers |
| Тип | paper |
| DOI | 10.1088/0957-0233/13/8/310 |
| Electronic ISSN | 1361-6501 |
| Print ISSN | 0957-0233 |
| Журнал | Measurement Science and Technology |
| Том | 13 |
| Первая страница | 1230 |
| Последняя страница | 1238 |
| Аффилиация | Ton Koster; Lightwave Devices Group, Mesa+ Research Institute, University of Twente, PO Box 217, 7500 AE Enschede, The Netherlands |
| Аффилиация | Paul Lambeck; Lightwave Devices Group, Mesa+ Research Institute, University of Twente, PO Box 217, 7500 AE Enschede, The Netherlands |
| Выпуск | 8 |
