9 June 2004 Optical sensor by Talbot effect in selfoc lens
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Proceedings Volume 5502, Second European Workshop on Optical Fibre Sensors; (2004) https://doi.org/10.1117/12.566692
Event: Second European Workshop on Optical Fibre Sensors, 2004, Santander, Spain
Abstract
We present a hybrid optical device for measurement of refractive index variation in a selfoc lens by the Talbot effect. The intrinsic nature of the device that combines a linear grating and an inhomogeneous medium permits to measure changes in the refractive index along the axis as a function of the position shift of the first self-image. Possible changes in the temperature during lens fabrication can be extracted from refractive index variation. The hybrid device has a refractive index sensitivity of ±7 x 10-5 per nanometer of position shift of the first self-image.
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Maria Victoria Perez, Maria Victoria Perez, Carmen Bao, Carmen Bao, M. T. Flores-Arias, M. T. Flores-Arias, A. Castelo, A. Castelo, Carlos C. Gomez-Reino, Carlos C. Gomez-Reino, Carlos R. Fernandez-Pousa, Carlos R. Fernandez-Pousa, "Optical sensor by Talbot effect in selfoc lens", Proc. SPIE 5502, Second European Workshop on Optical Fibre Sensors, (9 June 2004); doi: 10.1117/12.566692; https://doi.org/10.1117/12.566692
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