Experiment
Title
NIR Optical constants spectra of the $2\nu$ mode of $^{12}CO$ in solid solution in $N2$ crystal at differents temperatures
Database
Experimentalists
Spectra preview
Experiment type
Type(s)
laboratory
Variable(s)
temperature, sample phase
Laboratory
Laboratoire de Glaciologie et Géophysique de l'Environnement (LGGE)
Instrument #1
Instrument
Nicolet 800
Sample holder
Copper closed cell 1 mm thick with Al2O3 windows cooled by He cryostat in UHV chamber with 2 KBr windows
Standard medium
vacuum
Spectral range type(s)
NIR
Valid spectral range(s)
Min - Max ($cm^{-1}$) Sampling ($cm^{-1}$) Resolution ($cm^{-1}$) Position accuracy ($cm^{-1}$) Absorption edge
#1 4230.0 - 4270.0 0.482131412702 0.92 0.05
Comments
data only for the $2\nu$ mode of $^{12}CO$
Orientation to sample
crystals C axis possibly mostly perpendicular to beam axis
Illumination
Type of polarization
no
Observation
Type of polarization
no
Comments
possibly partly polarized beam by beamsplitter
Observation mode
single spot
Image size
2.0 x 2.0 $mm$
Spatial resolution
2.0 ${\pm}$ 0.3 $mm$
Comments
circular spot located in center of a monocrystal
Date begin
1992-01-01
Publications