Experiment
Title
NIR Optical constants spectrum of H2O Ih crystal and H2O liquid from 20 to 293 K
Reference
Schmitt, Bernard; Grundy, Will (1997): NIR Optical constants spectrum of H2O Ih crystal and H2O liquid from 20 to 293 K. Version 1. SSHADE/GhoSST (OSUG Data Center). Dataset/Spectral Data.
Type(s)
laboratory
Variable(s)
temperature
Number of spectra
28
Instrument
Nicolet 800
Sample holder
Cooper closed cell of variable thickness (0.1, 0.3, 1, 10 mm) with MgF2 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 3600.0 - 10500.0 0.482131412702 0.92 0.05
Incidence angle(s)
0.0°
Emergence angle(s)
180.0°
Orientation to sample
IR beam perpendicular to C axis of H2O monocrystals
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 ${\pm}$ 0.5 $mm$
Comments
spot located in center of a monocrystal
Date begin - end
1997-02-14 - 1997-02-14
Publications
Comments
did not include the spectra of liquid water