Polarization-independent Talbot effect.
We report the first observation of polarization-independent Talbot effect with a high-density grating for TE and TM polarizations, which is attributed to the identical phases and diffraction efficiencies of the diffraction orders for both polarizations. We introduce the simplified modal method that provides an insightful physical description for explanation of the diffraction efficiency and phase of the polarization-independent Talbot effect. Only two even grating modes can be excited, which determines the diffraction properties of the near-field image. We expect that this theoretical work will be helpful for the tremendous potential applications of the Talbot effect.
Shubin
S
Li
Changhe
C
Zhou
George
G
Barbastathis