Abstract

Instruments for making precision measurements of the specular reflectance at essentially normal incidence in the near ultraviolet, visible, and infrared regions of the spectrum are described. The square of the absolute reflectance is measured, with a resultant increase in measuring precision, and the major sources of systematic error in making reflectance measurements have been reduced or eliminated. The difficulty in making precision reflectance measurements in the infrared, where integrating spheres cannot be used, has been overcome by a unique compensating feature in the infrared reflectometer which prevents the image on the detector from changing size or position because of a slight tilt of the sample. The measurements made with these instruments on high reflectance samples are believed to be good to ±0.001.

© 1960 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
New Focusing Reflectometer for Measuring Optical Constants of Thin Films

R. E. Burge, A. T. Davidson, J. C. Draper, G. R. Field, and E. Murphy
Appl. Opt. 10(2) 342-345 (1971)

Integrating Sphere for Imperfectly Diffuse Samples*

D. K. Edwards, J. T. Gier, K. E. Nelson, and R. D. Roddick
J. Opt. Soc. Am. 51(11) 1279-1288 (1961)

Reflectometer for absolute silicon radiometry

James L. Gardner
Appl. Opt. 30(16) 2067-2068 (1991)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

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 OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA 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 OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA 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 OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription