Simple optical absorption spectrometer suitable for measurements at low temperatures
- 1 June 1975
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 46 (6) , 677-679
- https://doi.org/10.1063/1.1134289
Abstract
A spectrometer for making absolute absorption measurements is described. The system is especially suitable for work with solid state samples at low temperatures. Both sample and reference beams pass through the same set of Dewar windows, making compensation for the losses in these unnecessary. Simplicity and low cost are achieved by using a chopper wheel of special configuration rather than the usual rotating mirror. Direct measurement of optical densities as high as 4.0 is possible.Keywords
This publication has 1 reference indexed in Scilit:
- A Rapid and Sensitive Recording Spectrophotometer for the Visible and Ultraviolet Region. I. Description and PerformanceReview of Scientific Instruments, 1954