Precise measurements with a compact vacuum infrared spectrometer.
A 3-m vacuum grating IR spectrometer with digital recording is described. Resolution better than 0.025 cm(-1) at 3000 cm(-1) is demonstrated, and details are given of a fast deconvolution procedure by which the resolution is enhanced to near 0.010 cm(-1) . The grating drive incorporates a Merton nut, which facilitates the measurement of highly precise wave numbers. Lines in the 12 degrees 1 band of N(2)O near 4630 cm(-1) have been measured and agree within an average of +/-0.0004 cm(-1) with interferometric values.
Braund
D B
DB
Cole
A R
AR
Cugley
J A
JA
Honey
F R
FR
Pulfrey
R E
RE
Reece
G D
GD