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

Full-field optical thickness profilometry of semitransparent thin films with transmission densitometry

Not Accessible

Your library or personal account may give you access

Abstract

A novel bidirectional thickness profilometer based on transmission densitometry was designed to measure the localized thickness of semitransparent films on a dynamic manufacturing line. The densitometer model shows that, for materials with extinction coefficients between 0.3 and 2.9D/mm, 100500μm measurements can be recorded with less than ±5% error at more than 10,000 locations in real time. As a demonstration application, the thickness profiles of 75mm×100mm regions of polymer electrolyte membrane (PEM) were determined by converting the optical density of the sample to thickness with the Beer–Lambert law. The PEM extinction coefficient was determined to be 1.4D/mm, with an average thickness error of 4.7%.

© 2010 Optical Society of America

Full Article  |  PDF Article
More Like This
Accommodating brightness and exposure levels in densitometry of stained polyacrylamide electrophoresis gels

Han Yen Tan, Tuck Wah Ng, and Oi Wah Liew
Appl. Opt. 49(9) 1623-1629 (2010)

Retrieval of optical constants and thickness of thin films from transmission spectra

I. Chambouleyron, J. M. Martínez, A. C. Moretti, and M. Mulato
Appl. Opt. 36(31) 8238-8247 (1997)

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 (9)

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 (1)

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 (17)

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