Fig. 1. Schematic diagram of two-dimensional pupil expanded waveguide AR-HUD

Fig. 2. Schematic diagram of one-dimensional pupil expanded volume holographic waveguide. (a) Waveguide structure; (b) local amplification

Fig. 3. Initial vector distribution of volume holographic grating parameters. (a) Vector distribution in K vector sphere; (b) vector distribution in k_xOk_z plane

Fig. 4. Holographic photosensitive material rotating around k_y axis. (a) Vector distribution in K vector sphere; (b) vector distribution in k_xOk_z plane

Fig. 5. Grating degeneracy for obtaining equivalent vector set

Fig. 6. Derivation of angles between object light and reference light to normal of holographic material

Fig. 7. Change in angles between object light and reference light to normal of holographic material

Fig. 8. Structure of designed holographic optical waveguide and actual processed holographic optical waveguide. (a) Structure of designed holographic optical waveguide; (b) actual processed holographic optical waveguide

Fig. 9. Holographic optical waveguide and augmented reality display results. (a) Image light transmitting in waveguide; (b)(c) augmented reality display results