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

Determining thickness independently from optical constants by use of ultrafast light

Not Accessible

Your library or personal account may give you access

Abstract

We show that the application of ultrafast techniques, especially terahertz time-domain spectroscopy, allows simultaneous measurements of material thickness and optical constants from transmission measurements, by analyzing not only the phase difference between the main terahertz pulse through the medium but also the subsequent multireflection pulse (an echo) from the medium. Such a method provides a fast and precise characterization of the optical properties and can extract thickness information and hence other optical constants in a broad bandwidth. It may have applications in science and engineering such as in situ film thickness and quality monitoring, optical constants measurement, medical imaging, noninvasive detection, and remote sensing.

© 2004 Optical Society of America

Full Article  |  PDF Article
More Like This
Terahertz time-domain spectroscopy characterization of the far-infrared absorption and index of refraction of high-resistivity, float-zone silicon

Jianming Dai, Jiangquan Zhang, Weili Zhang, and D. Grischkowsky
J. Opt. Soc. Am. B 21(7) 1379-1386 (2004)

Terahertz time-domain spectroscopy of submonolayer water adsorption in hydrophilic silica aerogel

Jiangquan Zhang and Daniel Grischkowsky
Opt. Lett. 29(9) 1031-1033 (2004)

Waveguide terahertz time-domain spectroscopy of nanometer water layers

Jiangquan Zhang and D. Grischkowsky
Opt. Lett. 29(14) 1617-1619 (2004)

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 (4)

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

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