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

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

Download full size

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

Download full size

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

Download full size

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 $z_{Q T}^{'}$ when q is even); (e) phase pattern at z=z_T/4; (f) phase pattern at z=3z_T/4