Fig. 1. Schematic diagram of different photon sieves. (a) Ordinary photon sieve; (b) equal-diameter-pinhole photon sieve

Fig. 2. Schematic diagram of equal-diameter-pinhole photon sieve

Fig. 3. Schematic diagram of equal-diameter-pinhole photon sieve and its internal structures. (a) Schematic diagram of equal-diameter-pinhole photon sieve; (b) periodic distribution of pinholes; (c) periodic unit of photon sieve

Fig. 4. Normalized electric field distribution and electric field distribution in x direction of fundamental mode in pinhole of photon sieve. (a) (c) Normalized electric field distribution; (b) (d) electric field distribution in x direction

Fig. 5. Electric field distribution and transmission loss of fundamental mode in pinhole. (a)(c) Electric field distribution; (b)(d) transmission loss

Fig. 6. Far-field electric field distribution of single pinhole in single-mode pinhole photon sieve obtained by theory and simulation under different wavelengths. (a) λ=2.4 nm; (b) λ=3.4 nm; (c) λ=4.4 nm

Fig. 7. Normalized far-field intensity distribution of single pinhole in single-mode pinhole photon sieve obtained by theory, normalized far-field intensity distribution of single pinhole in single-mode pinhole photon sieve obtained by simulation and normalized far-field intensity distribution of single pinhole in ordinary photon sieve at λ=2.4 nm

Fig. 8. Schematic diagram of equal-diameter-pinhole photon sieve under oblique plane wave irradiation. (a) Schematic diagram of focusing; (b) structural diagram