Two-Dimensional Talbot Effect in Uniaxial Crystals Orthogonal to Optical Axis

Yingyi Liu; Jing Cheng

doi:10.3788/AOS221706

Journals >Acta Optica Sinica >Volume 43 >Issue 5 >Page 0505001 > Article

Acta Optica Sinica
Vol. 43, Issue 5, 0505001 (2023)

Two-Dimensional Talbot Effect in Uniaxial Crystals Orthogonal to Optical Axis

Yingyi Liu and Jing Cheng^*

Author Affiliations

School of Physics and Optoelectronics, South China University of Technology, Guangzhou 510641, Guangdong, China

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DOI: 10.3788/AOS221706 Cite this Article Set citation alerts

Yingyi Liu, Jing Cheng. Two-Dimensional Talbot Effect in Uniaxial Crystals Orthogonal to Optical Axis[J]. Acta Optica Sinica, 2023, 43(5): 0505001 Copy Citation Text

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Fig. 1. Intensity pattern and spatial spectrum of 2D sinusoidal grating (p_x=p_y=40 μm). (a) Intensity distribution; (b) spatial spectrum

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Intensity patterns and phase patterns of 2D sinusoidal grating at different positions. (a) Intensity pattern at z=zRT=6.578 mm; (b) intensity pattern at z=zRT/2 (corresponding to zRHT); (c) intensity pattern at z=zRT/4 (corresponding to zRQT when q is odd); (d) intensity pattern at z=3zRT/4 (corresponding to zRQT'when q is even); (e) phase pattern at z=zRT/4; (f) phase pattern at z=3zRT/4

Fig. 2. Intensity patterns and phase patterns of 2D sinusoidal grating at different positions. (a) Intensity pattern at z=z_RT=6.578 mm; (b) intensity pattern at z=z_RT/2 (corresponding to z_RHT); (c) intensity pattern at z=z_RT/4 (corresponding to z_RQTwhen q is odd); (d) intensity pattern at z=3z_RT/4 (corresponding to

z_{R Q T}^{'}

when q is even); (e) phase pattern at z=z_RT/4; (f) phase pattern at z=3z_RT/4

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Fig. 3. Variation of relative intensity and phase contrasts of 2D sinusoidal grating in reduced Talbot distance (α=0.98,0.90,0.70). (a) Relative intensity contrast; (b) phase contrast

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Fig. 4. Intensity pattern and spatial spectrum of 2D checker grating (

p_{x}^{'}

= 32 μm,

p_{y}^{'}

=95.64 μm). (a) Intensity distribution; (b) spatial spectrum

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Fig. 5. Intensity patterns and phase patterns of 2D checker grating at different positions. (a) Intensity pattern at z=z_T=20.98 mm; (b) intensity pattern at z=z_T/2 (corresponding to z_HT); (c) intensity pattern at z=z_T/4 (corresponding to z_QTwhen q is odd); (d) intensity pattern at z=3z_T/4 (corresponding to