Recent advances indicate that optical encryption can be used not only for signal secrecy but
also for information authentication. By integrating optical encryption with a sparsity …

In recent years, optical information processing has become increasingly important due to its
ability to handle large amounts of data efficiently. Amplitude, phase, spatial frequency …

In this contribution, we implement two techniques to reinforce optical encryption, which we
restrict in particular to the QR codes, but could be applied in a general encoding situation …

For practical application of any optical cryptographic technique, good quality decryption is
necessary. Exclusive-OR (XOR) operation is a well-known technique for image encryption …

Based on phase retrieval algorithm and QR code, a new optical encryption technology that
only needs to record one intensity distribution is proposed. In this encryption process, firstly …

Quick response (QR) code has been employed as a data carrier for optical cryptosystems in
many recent research works, and the error-correction coding mechanism allows the …

Stretchable strain sensors have the potential to significantly advance electronic healthcare
(E-healthcare). However, current challenges, including a limited detection range, low …

We proposed a high-capacity optical encryption system based on single-shot-ptychography
encoding (SPE) technique and quick response (QR) code. Two QR codes are utilized as …

We demonstrate that all parameters of optical lightwave can be simultaneously designed as
keys in security system. This multi-dimensional property of key can significantly enlarge the …

The three-dimensional holography technique offers a powerful method for storing the depth
information of objects, and it provides more realistic scene reconstruction compared with the …