Optical encryption of multiple three-dimensional objects based on multiple interferences and single-pixel digital holography

Wang Ying, Liu Qi, Wang Jun^†, Wang Qiong-Hua

Simulated results using the proposed method: (a) phase distributions of key 1; (b1) phase distributions of key 2-1; (b2) amplitude distributions of key 2-1; (b3) decrypted image of OBJ1-1; (b4) decrypted image of OBJ1-2; (c1) phase distributions of key 2-2; (c2) amplitude distribution of key 2-2; (c3) decrypted image of OBJ2-1; (c4) decrypted image of OBJ2-2; (d1) phase distribution of key 2-3; (d2) amplitude distribution of key 2-3; (d3) decrypted image of OBJ3-1; (d4) decrypted image of OBJ3-2.