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

Experimental Determination of the Effect of Temperature on Refractive Index and Optical Path Length of Glass

Not Accessible

Your library or personal account may give you access

Abstract

With the Fizeau interferometer method, the change in optical path length with temperature is measured at six wavelengths for twenty new Corning optical glasses. The sample, a polished block with a few seconds of wedge, is held in a double-walled chamber with temperature control provided over the range −20°C to +80°C by a circulating water–glycol mixture. A Gaertner interferometer viewing apparatus is modified by addition of a monitor head that permits simultaneous photoelectric fringe detecting and viewing. Measurement of thermal expansion with the Plummer-Hagy high precision dilatometer permits the extraction of the temperature coefficient of absolute refractive index from the optical path measurement. The coefficient of refractive index relative to standard air at the temperature of the glass is found by further data reduction using Edlén’s equations. The experimental values of the index change as a function of temperature are curve-fitted by a FORTRAN program, and the slopes are computed to give instantaneous values of the coefficients. The average residual for the fit is about 1.0 × 10−6. The precision of the absolute coefficient values is estimated to be ±0.05 × 10−6. Representative data for one glass are presented to illustrate the results available from this work.

© 1971 Optical Society of America

Full Article  |  PDF Article
More Like This
Thermal Coefficient of Refractive Index of Optical Glasses*

Tryggve Bååk
J. Opt. Soc. Am. 59(7) 851-857 (1969)

Thermal coefficients of the optical path length and refractive index in YAG

Tso Yee Fan and John L. Daneu
Appl. Opt. 37(9) 1635-1637 (1998)

Radiation-induced Changes in Refractive Index and Absorption Coefficient for Several Optical Materials

D. R. Olson, H. D. Dieselman, and J. B. Schroeder
Appl. Opt. 10(1) 81-86 (1971)

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 (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 (9)

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