Compressive digital Fresnel holographic encryption using a circular harmonic key and inline two-step PSDH is numerically demonstrated. The compressive optical encryption uses a digital mirror device and a single pixel detector. © 2019 The Author (s).

Anith Nelleri

Electronics

School of Electronics Engineering

Chennai Campus

Utkal Pandurangi

B Lokesh Reddy

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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Journal	Frontiers in Optics + Laser Science APS/DLS
Publisher	OSA
Open Access	No