Fig. 1. Equifrequency surface contours for the first TE-polarized photonic band of the PC

Fig. 2. Imaging schematic of PC confocal system. (a) Light path of imaging; (b) pinhole and detector at the position of image point

Fig. 3. Value of Q1, Q2, Q3 and FWHM versus horizontal position of the focus, and it is located at 1.5 μm below the PC

Fig. 4. Light path of focusing of the point source and reflection light imaging. (a) Negative refraction and focusing of the point source through PC; (b) reflection light negative refraction and imaging at pinhole

Fig. 5. Output values of detector at focal plane

Fig. 6. Normalized peak and FWHM when axial distance to focal plane H varies from -λ to λ

Fig. 7. Variation of the normalized peak value with the pinhole with d