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http://hdl.handle.net/2445/118404
Title: | Optical encryption in the longitudinal domain of focused fields |
Author: | Carnicer González, Arturo Juvells Prades, Ignacio Javidi, Bahram Martínez-Herrero, Rosario |
Keywords: | Polarització (Llum) Òptica física Camps electromagnètics Xifratge (Informàtica) Fotònica Seguretat informàtica Reconeixement òptic de formes Polarization (Light) Physical optics Electromagnetic fields Data encryption (Computer science) Photonics Computer security Optical pattern recognition |
Issue Date: | 4-Apr-2016 |
Publisher: | Optical Society of America |
Abstract: | We develop a method for encoding information in the longitudinal component of a focused field. Focused beams display a nonzero contribution of the electric field in the direction of propagation. However, the associated irradiance is very weak and difficult to isolate from the transverse part of the beam. For these reasons, the longitudinal component of a focused field could be a good choice for encoding and securing information. Using the Richards and Wolf formalism we show how to encrypt information in the longitudinal domain of the focal area. In addition, we use quantum imaging techniques to enhance the security and to prevent unauthorized access to the information. To the best of our knowledge, this is the first report on using the longitudinal component of the focused fields in optical security. |
Note: | Reproducció del document publicat a: https://doi.org/10.1364/OE.24.006793 |
It is part of: | Optics Express, 2016, vol. 24, num. 7, p. 6793-6801 |
URI: | http://hdl.handle.net/2445/118404 |
Related resource: | https://doi.org/10.1364/OE.24.006793 |
ISSN: | 1094-4087 |
Appears in Collections: | Articles publicats en revistes (Física Aplicada) |
Files in This Item:
File | Description | Size | Format | |
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664332.pdf | 2.33 MB | Adobe PDF | View/Open |
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