OSA's Digital Library

Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 25, Iss. 16 — Aug. 15, 2000
  • pp: 1189–1191

Nondestructive evaluation of incipient corrosion in a metal beneath paint by second-harmonic tomography

Jinpin Ying, Feng Liu, P. P. Ho, and R. R. Alfano  »View Author Affiliations


Optics Letters, Vol. 25, Issue 16, pp. 1189-1191 (2000)
http://dx.doi.org/10.1364/OL.25.001189


View Full Text Article

Acrobat PDF (247 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

A second-harmonic optical scanning imaging method for nondestructive evaluation of corrosion of painted metals is demonstrated. Two-dimensional images of the sectional structure from a sample of painted metal with corrosion were obtained by detection of second-harmonic generation (SHG). The second-harmonic signals generated from paint, corrosion, and metal can be spatially imaged in ~10-μm sliced subsurface layers. Corroded metal layers covered with paint are found to have more intensity variation than normal polished metal. The spatial mapping of the second-harmonic signals shows depth differentiation of paint, corrosion, and metal surfaces. The depth of corrosion beneath the paint can be measured from the SHG images.

© 2000 Optical Society of America

OCIS Codes
(110.6960) Imaging systems : Tomography
(180.5810) Microscopy : Scanning microscopy
(190.0190) Nonlinear optics : Nonlinear optics

Citation
Jinpin Ying, Feng Liu, P. P. Ho, and R. R. Alfano, "Nondestructive evaluation of incipient corrosion in a metal beneath paint by second-harmonic tomography," Opt. Lett. 25, 1189-1191 (2000)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-25-16-1189

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

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

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

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

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited