Abstract

The rotational structure of the ν₂ band of the HCN molecule at 14 μ has been measured using neon lines in the visible as wave-number markers and the 1–0 vibration rotation band lines of the CO molecule as secondary standards. There is good agreement between these measurements and the values calculated by Rank et al. from their observations of a number of near infrared vibration rotation bands of the HCN molecule. Some of the details of our experiences in the determination of frequencies of infrared lines have been given with a view to assist in a complete appreciation of the problems involved and the approach pursued in the solution of these problems.

© 1960 Optical Society of America

Measurements on Higher J Rotational Lines of Vibration Rotation Bands and Study of Resonances in Linear Polyatomic Molecules. I. ν₂ and 2ν₂⁰ Bands of HC¹²N†

W. W. Brim, J. M. Hoffman, H. H. Nielsen, and K. Narahari Rao
J. Opt. Soc. Am. 50(12) 1208-1213 (1960)

Highly Precise Wavelengths in the Infrared. II. HCN, N₂O, and CO†

D. H. Rank, D. P. Eastman, B. S. Rao, and T. A. Wiggins
J. Opt. Soc. Am. 51(9) 929-936 (1961)

Vibration-Rotation Spectra of HCN†

D. H. Rank, G. Skorinko, D. P. Eastman, and T. A. Wiggins
J. Opt. Soc. Am. 50(5) 421-432 (1960)

Echelle-Type Spectrograph for the Near Infrared*

D. H. Rank, D. P. Eastman, W. B. Birtley, George Skorinko, and T. A. Wiggins
J. Opt. Soc. Am. 50(8) 821-825 (1960)

Tunable diode laser spectroscopy in the infrared: some practical considerations of techniques and calibration with ν₂ lines of HCN

S. Paddi Reddy, W. Ivancic, V. Malathy Devi, A. Baldacci, K. Narahari Rao, A. W. Mantz, and R. S. Eng
Appl. Opt. 18(9) 1350-1354 (1979)