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Comparison of the behavior of a subwavelength diffractive lens in TE and TM polarization allowing some nonstandard functions

Victorien Raulot 1 Philippe Gérard 1 Bruno Serio 1 Manuel Flury 2 Meyrueis Patrick 3
1 InESS - Institut d'Electronique du Solide et des Systèmes
2 Laboratoire Hubert Curien / Eris
LHC - Laboratoire Hubert Curien [Saint Etienne]
3 LSP - Laboratoire des Systèmes Photoniques
Abstract : This Letter introduces and discusses a difference in the behavior of a cylindrical diffractive lens encoded with subwavelength structures illuminated with monochromatic coherent light in the cases of TE and TM polarization. The effective medium theory is used to model with new binary phase function the diffractive lens. A new algorithm combines the finite-difference time domain for the propagation in the near field and the radiation spectrum method for the propagation in the far field. We observe the existence in the TM polarization of a second spot at half the distance of the focal length not predictable by scalar theory.
Keywords : Diffractive lenses Diffraction and gratings : Effective medium theory Diffraction and gratings : Subwavelength structures
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https://hal-ujm.archives-ouvertes.fr/ujm-00629387
Contributor : Manuel Flury <>
Submitted on : Wednesday, October 5, 2011 - 4:55:53 PM
Last modification on : Tuesday, October 6, 2020 - 4:26:40 PM

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Victorien Raulot, Philippe Gérard, Bruno Serio, Manuel Flury, Meyrueis Patrick. Comparison of the behavior of a subwavelength diffractive lens in TE and TM polarization allowing some nonstandard functions. Optics Letters, Optical Society of America - OSA Publishing, 2011, 36 (7), pp.1194-1196. ⟨10.1364/OL.36.001194⟩. ⟨ujm-00629387⟩

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