Publisher's Synopsis
Excerpt from Optical Materials Characterization: Final Technical Report, February 1, 1978-September 30, 1978
Several techniques are used for measuring the refractive indices of optical materials; however, as part of this program, the measurements of n have been conducted on two precision spectrometers by the method of minimum deviation Schematic diagrams of both spectro meters are shown in Figure 1. The first spectrometer, which contains glass optics, is capable of measuring n in the Visible and in the near infrared to an accuracy of several parts in 106. The second spectrometer, which contains mirror optics, is capable of measuring n grom 200 nm in the ultraviolet to 50 um in the infrared to an accuracy of several parts in 10 The accuracy depends on specimen quality and size. All values of refractive index are measured relative to the refractive index of air, na, that is we measure n/na The value of na is about over the full wavelength range of measurement. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
