Characterisation of laser marks using digital holographic microscopy.

DSpace/Manakin Repository


Search DR-NTU

Advanced Search Subject Search


My Account

Characterisation of laser marks using digital holographic microscopy.

Show simple item record

dc.contributor.author Chee, Oi Choo.
dc.contributor.author Sim, Eddy.
dc.contributor.author Singh, Vijay Raj.
dc.contributor.author Anand, Asundi.
dc.date.accessioned 2011-10-12T03:56:51Z
dc.date.available 2011-10-12T03:56:51Z
dc.date.copyright 2008
dc.date.issued 2011-10-12
dc.identifier.citation Singh, V. R., Chee, O. C., Sim, E. & Anand, A. (2008). Characterisation of laser marks using digital holographic microscopy. International Symposium on Laser Metrology, 7155.
dc.identifier.uri http://hdl.handle.net/10220/7237
dc.description.abstract The inspection and characterisation of laser marks using digital holographic microscopy (DHM) is presented in this paper. A DHM system in transmission mode was designed and the reconstruction algorithm for this configuration was investigated. The software was developed to provide live reconstruction of holograms for real time numerical evaluation of amplitude and phase contrast images. A CO2 laser-based marking system was employed to create marks on glass substrates. By analysing the quality, 3D profile measurement, and material distribution of the marked area, the parameters of the laser system could be optimised to achieve the desired mark. The phase contrast images provide quantitative refractive index analysis and 3D profile studies. The results were compared with those obtained using white light confocal microscopy. The capabilities and advantages of the DHM system for the analysis of laser marks are also presented
dc.format.extent 9 p.
dc.language.iso en
dc.rights © 2008 SPIE.  This is the author created version of a work that has been peer reviewed and accepted for publication by Ninth International Symposium on Laser Metrology, SPIE.  It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: http://dx.doi.org/10.1117/12.814729.
dc.subject DRNTU::Science::Physics::Optics and light.
dc.title Characterisation of laser marks using digital holographic microscopy.
dc.type Conference Paper
dc.contributor.conference International Symposium on Laser Metrology (9th : 2008 : Singapore)
dc.contributor.school School of Mechanical and Aerospace Engineering
dc.identifier.doi http://dx.doi.org/10.1117/12.814729
dc.description.version Accepted version
dc.identifier.rims 143359

Files in this item

Files Size Format View
LM_published manuscript.pdf 939.3Kb PDF View/Open

This item appears in the following Collection(s)

Show simple item record


Total views

All Items Views
Characterisation of laser marks using digital holographic microscopy. 346

Total downloads

All Bitstreams Views
LM_published manuscript.pdf 181

Top country downloads

Country Code Views
United States of America 59
Singapore 45
China 39
Japan 6
Russian Federation 6

Top city downloads

city Views
Mountain View 43
Singapore 39
Beijing 27
Redwood City 5
Madrid 3

Downloads / month

  2014-02 2014-03 2014-04 total
LM_published manuscript.pdf 0 0 7 7