Effect of the characteristics of the tip fiber on the detection of the near field and on image formation with the PSTM

Laurent Salomon; Frederique de Fornel; Y. F. Chen

doi:10.1117/12.248558

26 August 1996 Effect of the characteristics of the tip fiber on the detection of the near field and on image formation with the PSTM

Laurent Salomon, Frederique de Fornel, Y. F. Chen

Author Affiliations +

Proceedings Volume 2785, Vision Systems: New Image Processing Techniques; (1996) https://doi.org/10.1117/12.248558
Event: Lasers, Optics, and Vision for Productivity in Manufacturing I, 1996, Besancon, France

Abstract

In the past, several groups presented images with the PSTM, different kinds of optical fibers being used as a probe. This paper presents a comparison of the intensity collected by single mode and multimode fibers in the near field of a sample lit in total internal reflection (TIR). The sample used is a grating covered with 65 nm of silver and is illuminated at different angles of incidence. We analyze the effect of the characteristics of the fiber on the collected intensity as a function of the distance between the end of the fiber and the surface of the sample. To illustrate this result a calibrated sample has been imaged with different kinds of fibers.

Citation Download Citation

Laurent Salomon, Frederique de Fornel, and Y. F. Chen "Effect of the characteristics of the tip fiber on the detection of the near field and on image formation with the PSTM", Proc. SPIE 2785, Vision Systems: New Image Processing Techniques, (26 August 1996); https://doi.org/10.1117/12.248558

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