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  1. No Access

    Article

    Extension of the classical Fabry–Perot formula to 1D multilayered structures

    In any field theory the interaction of a wave packet with a multilayered potential is of high theoretical and practical relevance. In the present work we show an extension to any number of layers of the classi...

    O. El Gawhary, M. C. Dheur, S. F. Pereira, J. J. M. Braat in Applied Physics B (2013)

  2. Article

    Open Access

    Performance analysis of coherent optical scatterometry

    Scatterometry is a well established technique currently utilized in research, as well as in industrial applications, to retrieve the properties of a given scatterer (the target) by looking at how the light com...

    O. El Gawhary, N. Kumar, S. F. Pereira, W. M. J. Coene, H. P. Urbach in Applied Physics B (2011)

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  3. No Access

    Article

    Which group velocity of light in a dispersive medium?

    The interaction between a light pulse, traveling in air, and a generic linear, non-absorbing and dispersive structure is analyzed. It is shown that energy conservation imposes a constraint between the group ve...

    O. El Gawhary, S. Severini, P. Christillin in The European Physical Journal Plus (2011)