Appreciating the principle of Non-Interaction of Waves (NIW-principle) by modeling Talbot diffraction patterns at different planes

Narasimha S. Prasad; Chandra Roychoudhuri

doi:10.1117/12.894044

28 September 2011 Appreciating the principle of Non-Interaction of Waves (NIW-principle) by modeling Talbot diffraction patterns at different planes

Narasimha S. Prasad, Chandra Roychoudhuri

Author Affiliations +

Proceedings Volume 8121, The Nature of Light: What are Photons? IV; 81211B (2011) https://doi.org/10.1117/12.894044
Event: SPIE Optical Engineering + Applications, 2011, San Diego, California, United States

Abstract

We present an approach to demonstrate the Non-Interaction of Waves (NIW)-principle by showing that dark fringes in the near-field Talbot diffraction patterns are not devoid of energy. We believe that a detector is simply incapable of absorbing any energy at the dark fringe locations simply because the resultant of the induced stimulations on a local detecting dipole due to all the E-vectors is zero. The joint stimulation is strongest at the bright fringe locations. The amplitude (& hence potentially detectable energy) flow through the "dark fringe locations" is demonstrated by obstructing the "bright fringe" locations at the half-Talbot plane with an identical grating that generated this diffraction image. Then, by propagating the transmitted complex amplitudes through the dark fringes, we would like to show that the Talbot plane can still receive more energy than that could have been recorded out of those same dark fringe locations at the half Talbot plane.

Citation Download Citation

Narasimha S. Prasad and Chandra Roychoudhuri "Appreciating the principle of Non-Interaction of Waves (NIW-principle) by modeling Talbot diffraction patterns at different planes", Proc. SPIE 8121, The Nature of Light: What are Photons? IV, 81211B (28 September 2011); https://doi.org/10.1117/12.894044

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