This book deals with theoretical bases of the modern optics division concerned with
coherent light fields with singularities characterized by phase uncertainty. Singular light …

In this paper we consider a generalization of standard nondiffracting parabolic beams. The
proposed generalized beams have two orders: a continuous parameter a, as in standard …

The aim of this study is watermarking image encryption based on the fractional Mellin
transform (FrMT) and singular value decomposition (SVD) using deterministic phase masks …

ABSTRACT The fractional Fourier transform (FrFT), which is a generalization of the Fourier
transform, has become the focus of many research papers in recent years because of its …

Owing to the rapid growth of mobile data communication and spectrum crunch at lower radio
frequency, utilizing high frequency spectrum such as millimeter wave for ultra-high data rate …

Acoustic computing devices, including switches, logic gates, differentiator and integrator,
have attracted extensive attentions in both academic research and engineering. However …

The use of metasurfaces has allowed the provision of a variety of functionalities by ultrathin
structures, paving the way toward novel highly compact analog computing devices. Here, we …

The fractional Fourier transform (FRFT) is a generalization of the Fourier transform. The
FRFT can characterize signals in multiple fractional domains and provide new perspectives …

We demonstrate that when a waveguide beam splitter (BS) is excited by N indistinguishable
photons, the arising multiphoton states evolve in a way as if they were coupled to each other …

An asymmetric cryptosystem for phase images is proposed which uses amplitude and phase
truncation operators in fractional Fourier domain. LU decomposition and Arnold transform …