Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Goniospectrometric space: identifiable presentation of spectral goniometric data for complex diffractive samples

Not Accessible

Your library or personal account may give you access

Abstract

Optical security takes advantage of complex gonioapparent effects of diffractive samples having strong angular and spectral dependence of reflected light. However, resolving the full angular and spectral properties of these kinds of targets might be a tremendous task. Preferably, one would like to measure a more limited number of illumination-viewing directions, using a multiangle goniometer, and still reveal the complex and unique properties of the target. In this study, we use a method for converting the full angular reflection data into reduced goniospectrometric space and further on into an xDNA graph, which we find to show good potential as a fingerprint for gonioapparent surfaces when limited measurement geometries are available. For the evaluation of the xDNA graph, we use two goniometric devices with a 45° incident angle illumination, a high-resolution bidirectional spectrometer, and a portable multiangle goniometer. This study tests the xDNA graph by evaluating the effects of geometry count and spectral resolution in goniometric measurements and further finds that the xDNA graph indeed works best with a reduced count of geometries and is not sensitive to lowered spectral resolution.

© 2016 Optical Society of America

Full Article  |  PDF Article
More Like This
Goniospectrometric space curve for coatings with special effect pigments

Nina Rogelj and Marta Klanjšek Gunde
Appl. Opt. 55(1) 122-132 (2016)

Suitability of goniospectrophotometric space curves as appearance fingerprints

Marta Klanjšek Gunde and Nina Rogelj
Appl. Opt. 52(12) 2718-2728 (2013)

Goniospectrophotometric space curves of diffraction gratings and their applicability as appearance fingerprints

Nina Rogelj, Igor Poberaj, and Marta Klanjšek Gunde
Appl. Opt. 52(34) 8355-8362 (2013)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (17)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (2)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (6)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved