Abstract

This article describes accessory apparatus to utilize the Beckman variable temperature unit without windows for obtaining low temperature spectra in the evacuated Perkin-Elmer FIS-3 far infrared spectrophotometer. The windowless feature of this low temperature unit allows spectra to be recorded without energy loss and interfering absorption that arise from windows in conventional low temperature units.

Infrared Transmittance at High Temperature Using a Double-Beam Spectrophotometer

C. J. Parker and M. E. Nordberg
J. Opt. Soc. Am. 49(9) 856-859 (1959)

A Variable-Temperature Cell for Cary 14 Spectrophotometers

J. G. Koren, J. S. Brinen, and R. C. Hirt
Appl. Opt. 3(12) 1431-1433 (1964)

Spectrophotometer for measuring small sharp absorption bands in solids at low temperatures

John Rolfe and H. J. Labbe
Appl. Opt. 19(12) 1937-1940 (1980)

Modification of a Beckman Model DU Spectrophotometer for Automatic Operation at 210–2700 mμ

Wilbur Kaye, Cham Canon, and R. G. Devaney
J. Opt. Soc. Am. 41(10) 658-664 (1951)

Transmission Measurements with the Beckman Quartz Spectrophotometer

Kasson S. Gibson and Margaret M. Balcom
J. Opt. Soc. Am. 37(8) 593-608 (1947)