Waveguide-based machine readable fluorescence security feature for border control and security applications

Jincy Johny; Kaushal Bhavsar; Simon Officer; Morgan Adams; Radhakrishna Prabhu

doi:10.1117/12.2501974

8 October 2018 Waveguide-based machine readable fluorescence security feature for border control and security applications

Jincy Johny, Kaushal Bhavsar, Simon Officer, Morgan Adams, Radhakrishna Prabhu

Author Affiliations +

Proceedings Volume 10802, Counterterrorism, Crime Fighting, Forensics, and Surveillance Technologies II; 1080209 (2018) https://doi.org/10.1117/12.2501974
Event: SPIE Security + Defence, 2018, Berlin, Germany

Abstract

Border security challenges and immigration issues are increasing considerably in recent years. Counterfeiting and fraudulent use of identity and other travel documents are posing serious threats and safety concerns worldwide, ever since the advancement of computers, photocopiers, printers and scanners. Considering the current scenario of illegal migration and terrorism across the world, advanced technologies and improved security features are essential to enhance border security and to enable smooth transits. In this paper, we present a novel dual waveguide based invisible fluorescence security feature and a simple validation system to elevate and strengthen the security at border controls. The validation system consists of an LED (light emitting diode) as excitation source and an array photodetector which helps in the simultaneous detection of multiple features from the fluorescence waveguides. The fluorescence waveguides can be embedded into the identity document as micro-threads or tags which are invisible to the naked eye and are only machine readable. In order to improve the sensitivity, rare earth fluorescence materials are used which absorb only specific ultraviolet (UV) or visible (VIS) wavelengths to create corresponding fluorescent emission lines in the visible or infrared wavelengths. Herein, we present the preliminary results based on the fluorescence spectroscopic studies carried out on the fabricated rare earth doped waveguides. The effect of different rare earth concentrations and excitation wavelengths on the fluorescence intensity were investigated.

Conference Presentation

Citation Download Citation

Jincy Johny, Kaushal Bhavsar, Simon Officer, Morgan Adams, and Radhakrishna Prabhu "Waveguide-based machine readable fluorescence security feature for border control and security applications", Proc. SPIE 10802, Counterterrorism, Crime Fighting, Forensics, and Surveillance Technologies II, 1080209 (8 October 2018); https://doi.org/10.1117/12.2501974

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available