BIO-ORGANIC CHEMISTRY QUARTERLY REPORT DEC. 1960 THROUGH FEB.1961

PDF Version Also Available for Download.

Description

The current interest in the subject of fiber optics has brought about, among its many achievements, the development of a new technique for measuring refractive index. An instrument designed as a light-pipe refractometer or rod photorefractometer has been described by Kapany and Pike. these authors have presented both a theoretical study of the phenomenon and experimental results arising from a prototype apparatus. The range of applicability of such a device is limited, however, by the availability of rod materials having suitable refractive indices. In particular, the available solid material which has the lowest refractive index and which is also transparent ... continued below

Creation Information

Creator: Unknown. April 1, 1961.

Context

This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this report can be viewed below.

Who

People and organizations associated with either the creation of this report or its content.

Creator

  • We've been unable to identify the creator(s) of this report.

Publisher

Provided By

UNT Libraries Government Documents Department

Serving as both a federal and a state depository library, the UNT Libraries Government Documents Department maintains millions of items in a variety of formats. The department is a member of the FDLP Content Partnerships Program and an Affiliated Archive of the National Archives.

Contact Us

What

Descriptive information to help identify this report. Follow the links below to find similar items on the Digital Library.

Description

The current interest in the subject of fiber optics has brought about, among its many achievements, the development of a new technique for measuring refractive index. An instrument designed as a light-pipe refractometer or rod photorefractometer has been described by Kapany and Pike. these authors have presented both a theoretical study of the phenomenon and experimental results arising from a prototype apparatus. The range of applicability of such a device is limited, however, by the availability of rod materials having suitable refractive indices. In particular, the available solid material which has the lowest refractive index and which is also transparent is fused quartz (n{sub D} = 1.458). For reasons inherent in the geometry of the photorefractometer optics, the use of quartz rods does not permit high sensitivity of measurement on liquids having refractive index values less than 1.44. Aqueous solutions, therefore, are beyond the range of study of a system using solid rods. Kapany and Pike suggested the possibility of replacing the solid rod with a hollow cylindrical glass tube filled with a standard liquid. In this manner the effective refractive index of the light pipe is that of the reference liquid and can be varied over the complete range of refractive index for which liquids are available. Under these conditions the refractive index of the solid tube material now serves as an upper limit to the range of applicability. To date no experimental results using a hollow-tube refractometer have been reported, however. In the study presented here a photorefractometer cell incorporating a liquid light pipe has been constructed, and experimental results are reported on solutions in both water and methanol as solvents. These solutions would not be capable of sensitive refractive index measurement using a solid-rod photorefractometer. In addition, some experiments have been carried out toward determining the refractive dispersion curves of colored substances, and some difficulties inherent in these measurements are discussed.

Language

Item Type

Identifier

Unique identifying numbers for this report in the Digital Library or other systems.

  • Report No.: UCRL--9652
  • Grant Number: DE-AC02-05CH11231
  • DOI: 10.2172/925548 | External Link
  • Office of Scientific & Technical Information Report Number: 925548
  • Archival Resource Key: ark:/67531/metadc898577

Collections

This report is part of the following collection of related materials.

Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

What responsibilities do I have when using this report?

When

Dates and time periods associated with this report.

Creation Date

  • April 1, 1961

Added to The UNT Digital Library

  • Sept. 27, 2016, 1:39 a.m.

Description Last Updated

  • April 24, 2017, 12:18 p.m.

Usage Statistics

When was this report last used?

Yesterday: 0
Past 30 days: 1
Total Uses: 2

Interact With This Report

Here are some suggestions for what to do next.

Start Reading

PDF Version Also Available for Download.

Citations, Rights, Re-Use

BIO-ORGANIC CHEMISTRY QUARTERLY REPORT DEC. 1960 THROUGH FEB.1961, report, April 1, 1961; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc898577/: accessed October 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.