Figure 1

Experimental setup. GG: ground glass; ${\mathrm{L}}_1$, ${\mathrm{L}}_2$: lenses; ${\mathrm{M}}_1$, ${\mathrm{M}}_2$: mirrors; ${\mathrm{P}}_1$ and ${\mathrm{P}}_2$: pinholes; BS: beamsplitter; PO: periodic object.Reuse & Permissions

Figure 2

Second-order Talbot patterns obtained by scanning CCD2 along $z_r$ while keeping CCD1 fixed. Each frame is of size $250\times 20$ pixels (each pixel is $4.65\times 4.65$ $\mu$m). (a) Talbot images at $z_r=z_1\simeq 11.2$ cm. (b) Fractional Talbot images at $z_r=z_1+1/3z_T~13.3$ cm. (c) Sub-Talbot images at $z_r=z_1+1/2z_T~14.3$ cm. (d) Phase-reversed Talbot images at $z_r=z_1+z_T~17.5$ cm. The grey bar denotes the intensity correlation function normalized with respect to its maximum value. (e)–(g) Intensity correlation profiles of the respective Talbot patterns in (b)–(d), taken over 100 pixels; the fainter solid line is the corresponding ghost image of (a).Reuse & Permissions

Figure 3

From the top down, high-order Talbot patterns and their corresponding intensity correlation profiles for $N=2$, 4, and 6 (blue solid, black dashed, and red dotted lines, respectively). Each image of size $150\times 20$ pixels is obtained by averaging 10 000 frames (each pixel is 4.65 by 4.65 $\mu$m). (a) Nonlocal Talbot images and profiles at $z_r=z_1~11.2$ cm. (b) Fractional Talbot images at $z_1~8.4$ cm, $z_r=z_1+1/3z_T~11.6$ cm. (c) Sub-Talbot images at $z_1~10.2$ cm, $z_r=z_1+1/2z_T~13.3$ cm. (d) Phase-reversed Talbot images with the same $z_1$ and $z_2$ as in (c), but $z_r=z_1+z_T~16.5$ cm.Reuse & Permissions