The diffraction field distribution of a high density grating with a period of 2.5λ is analyzed with the finite-difference time-domain (FDTD) method. The numerical results show the axial spatial evolution of the optical field near the 1/2 Talbot plane of the grating, which is verified by experiment with the scanning near-field optical microscopy (SNOM) technique. It should be helpful for understanding more clearly the diffraction behavior of a high density grating in micro- and nano-optics and be beneficial for applications of the Talbot effect, such as the near-field photolithography.
The diffraction field distribution of a high density grating with a period of 2.5λ is analyzed with the finite-difference time-domain (FDTD) method. The numerical results show the axial spatial evolution of the optical field near the 1/2 Talbot plane of the grating, which is verified by experiment with the scanning near-field optical microscopy (SNOM) technique. It should be helpful for understanding more clearly the diffraction behavior of a high density grating in micro- and nano-optics and be beneficial for applications of the Talbot effect, such as the near-field photolithography.
(Optical properties of bulk materials and thin films)
引用本文:
LU Yun-Qing;LI Pei-Li;ZHENG Jia-Jin. The Axial Spatial Evolution of Optical Field near the Talbot Plane of a Grating[J]. 中国物理快报, 2010, 27(9): 94201-094201.
LU Yun-Qing, LI Pei-Li, ZHENG Jia-Jin. The Axial Spatial Evolution of Optical Field near the Talbot Plane of a Grating. Chin. Phys. Lett., 2010, 27(9): 94201-094201.
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