Journal
OPTICS COMMUNICATIONS
Volume 180, Issue 4-6, Pages 199-203Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0030-4018(00)00717-3
Keywords
diffraction; self-imaging; Talbot effect
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In the original Talbot experiment, a grating made of thin slits was illuminated in polychromatic light. Reconstituting this simple experiment, we have observed that at a certain distance from the grating, achromatic lines are formed whose transverse-resolution remains unaffected over a wide propagation-distance range. To our knowledge, this phenomenon has never been reported before. A theoretical explanation of this achromatic and continuous self-imaging regime is given and experimental results are reported. (C) 2000 Published by Elsevier Science B.V. All rights reserved.
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