Abstract

A two-channel scanning spectrophotometer is described which has been used, in conjunction with a high resolution grating spectrograph, to make measurements of collision broadening and shift in optical absorption spectra to an accuracy of 0.001 cm⁻¹. Shifts with respect to a reference spectrum are measured directly from the chart of a two-pen recorder, while profiles are recorded on punched paper tape ready for computer analysis. Errors which might arise from intensity fluctuations in the light source or from non-linearity of the scanner motion are completely eliminated.

© 1969 Optical Society of America

An Analog Data Processor for Chart Records Using a Multielement Photodetector

S. Minami, S. Tsutsui, and H. Onoda
Appl. Opt. 8(6) 1217-1223 (1969)

A Rocket-Borne Photoelectric Spectrophotometer Using Convergent Beam Dispersion to Observe Far Ultraviolet Stellar Spectra

G. C. Sudbury
Appl. Opt. 8(10) 2013-2018 (1969)

A Rapid-Scan Spectrometer for Scanning 2000 Å–15 μm in 3 sec

H. A. Kruegle and S. A. Dolin
Appl. Opt. 8(10) 2107-2115 (1969)

Some Accessories for Making Color Measurements with the Cary 14 Spectrophotometer

W. N. Mitchell and Russell W. Wolfe
Appl. Opt. 8(4) 785-791 (1969)

Improved Double Beam, Vacuum Far Infrared Spectrophotometer

Isao Iwahashi, Koichi Matsumoto, Shunji Matsudaira, Shigeo Minami, and Hiroshi Yoshinaga
Appl. Opt. 8(3) 583-588 (1969)