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

Calibration of Instruments Measuring Reflectance and Transmittance

Not Accessible

Your library or personal account may give you access

Abstract

In calibrating instruments that measure reflectance and transmittance to a few tenths of a percent, it is desirable to have a sample that is smooth, uniform, nonabsorbing, and stable, so that the measured reflectance and transmittance will add to unity, and no light will be either absorbed or scattered outside the collecting optics. A properly prepared, thin, transparent, high index film (such as CeO2 or TiO2) on a fused quartz substrate is suitable for a calibration sample. Equations are given to calculate the reflectance and transmittance both at normal incidence and nonnormal incidence, as well as to correct for multiple reflections in the substrate and reflection from the back surface of the substrate. Factors such as aging and optical thickness nonuniformity, which can introduce systematic errors into the calibration, must be minimized by proper choice of materials and preparation techniques.

© 1972 Optical Society of America

Full Article  |  PDF Article
More Like This
New Method for Accurate Determination of Optical Constants

O. Hunderi
Appl. Opt. 11(7) 1572-1578 (1972)

Derivation of Optical Constants of Metals from Thin-Film Measurements at Oblique Incidence

J. E. Nestell and R. W. Christy
Appl. Opt. 11(3) 643-651 (1972)

Spectrophotometer for measuring spectral reflectance and transmittance

Peiyun Wu, Peifu Gu, and Jinfa Tang
Appl. Opt. 33(10) 1975-1979 (1994)

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 (2)

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 (9)

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 (8)

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