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

Measurements of absorption losses in TiO2 films by a collinear photothermal deflection technique

Not Accessible

Your library or personal account may give you access

Abstract

We review the principle of photothermal deflection for measuring absorption losses in TiO2 films. A collinear arrangement gives the best sensitivity for the detection of losses in a low absorbing film deposited on a transparent substrate. The nineteen TiO2 films produced by six different processes (electron beam evaporation, ion assisted deposition, ion beam sputtering, ion plating, …), discussed at the 1986 Optical Society of America annual meeting, are measured by this technique. The extinction coefficients of the different films do not show obvious correlation with the deposition method. An important fact is that we have detected a variation in absorption as a function of time on some layers. This absorption shift is connected with the illumination conditions of the sample under study (wavelength: 600 nm; incident power: 400 W/cm2). Experimental results over time are given. The evolution of the photothermal signal is different from one sample to another. This phenomenon is partially reversible and depends on moisture degree of atmosphere.

© 1990 Optical Society of America

Full Article  |  PDF Article
More Like This
Scattering study of single layer titania films

Carolyn F. Hickey, C. Amra, and Emile Pelletier
Appl. Opt. 28(14) 2754-2761 (1989)

Comparison of the properties of titanium dioxide films prepared by various techniques

Jean M. Bennett, Emile Pelletier, G. Albrand, J. P. Borgogno, B. Lazarides, Charles K. Carniglia, R. A. Schmell, Thomas H. Allen, Trudy Tuttle-Hart, Karl H. Guenther, and Andreas Saxer
Appl. Opt. 28(16) 3303-3317 (1989)

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 (6)

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 (4)

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