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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 3, Iss. S1 — Aug. 28, 2005
  • pp: S358–S360

FDTD analysis of Talbot effect of a high density grating

Yunqing Lu, Changhe Zhou, and Hongxin Luo  »View Author Affiliations


Chinese Optics Letters, Vol. 3, Issue S1, pp. S358-S360 (2005)


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Abstract

Talbot effect of a grating with different flaws is analyzed with the finite-difference time-domain (FDTD) method. The FDTD method can show the exact near-field distribution of different flaws in a high-density grating, which is impossible to obtain with the conventional Fourier transform method. The numerical results indicate that if a grating is perfect, its Talbot imaging should also be perfect; if the grating is distorted, its Talbot imaging would also be distorted. Furthermore, we can evaluate high density gratings by detecting the near-field distribution.

© 2005 Chinese Optics Letters

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(070.6760) Fourier optics and signal processing : Talbot and self-imaging effects
(110.6760) Imaging systems : Talbot and self-imaging effects
(260.2110) Physical optics : Electromagnetic optics

Citation
Yunqing Lu, Changhe Zhou, and Hongxin Luo, "FDTD analysis of Talbot effect of a high density grating," Chin. Opt. Lett. 3, S358-S360 (2005)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-3-S1-S358

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