Phase-only optical decryption in a planar integrated micro-optics system

Vincent R. Daria; Peter J. Rodrigo; Stefan Sinzinger; Jesper Glückstad

doi:10.1117/1.1782613

Phase-only optical decryption in a planar integrated micro-optics system

Vincent R. Daria^*, Peter J. Rodrigo, Stefan Sinzinger, Jesper Glückstad

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

Abstract

We present a compact optical decryption system using the generalized phase contrast (GPC) method implemented in a planar integrated micro-optical (PO) device. An encrypted phase pattern is deciphered by the application of a decrypting phase key and visualized using a miniaturized implementation of the GPC method. The current proof-of-principle demonstration makes use of a PO device composed of diffractive micro-optical elements to form a 4-f lens imaging setup with a spatial phase-only filter at the Fourier plane. Successful decryption of a 17 × 9-pixel encrypted phase mask is achieved with high-contrast visualization of the original pattern.

Original language	English
Pages (from-to)	2223-2227
Number of pages	5
Journal	Optical Engineering
Volume	43
Issue number	10
DOIs	https://doi.org/10.1117/1.1782613
Publication status	Published - Oct 2004
Externally published	Yes

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abstract = "We present a compact optical decryption system using the generalized phase contrast (GPC) method implemented in a planar integrated micro-optical (PO) device. An encrypted phase pattern is deciphered by the application of a decrypting phase key and visualized using a miniaturized implementation of the GPC method. The current proof-of-principle demonstration makes use of a PO device composed of diffractive micro-optical elements to form a 4-f lens imaging setup with a spatial phase-only filter at the Fourier plane. Successful decryption of a 17 × 9-pixel encrypted phase mask is achieved with high-contrast visualization of the original pattern.",

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AB - We present a compact optical decryption system using the generalized phase contrast (GPC) method implemented in a planar integrated micro-optical (PO) device. An encrypted phase pattern is deciphered by the application of a decrypting phase key and visualized using a miniaturized implementation of the GPC method. The current proof-of-principle demonstration makes use of a PO device composed of diffractive micro-optical elements to form a 4-f lens imaging setup with a spatial phase-only filter at the Fourier plane. Successful decryption of a 17 × 9-pixel encrypted phase mask is achieved with high-contrast visualization of the original pattern.

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KW - Optical encryption

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Phase-only optical decryption in a planar integrated micro-optics system

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