FDTD analysis of Talbot effect of a high density grating
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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