Experiment
Title
NIR Optical constants spectrum of H2O Ih crystal and H2O liquid from 20 to 293 K
DOI
10.26302/SSHADE/EXPERIMENT_BS_20120924_011
Data reference
Grundy, Will; Schmitt, Bernard (1997): NIR Optical constants spectrum of H2O Ih crystal and H2O liquid from 20 to 293 K. SSHADE/GhoSST (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_BS_20120924_011
Publications
Comments
did not include the spectra of liquid water
Type(s)
laboratory measurement
Number of spectra
28
Variable type(s)
  • temperature
Comments
series of optical constant spectra from 293K to 20K, every 10K. liquid phase for 273.5K and 293K
Instrument
Nicolet 800 – transmission Near-IR
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
Observation mode
spectrum
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
Observation geometry
direct
Observation mode
fixed angles
Incidence angle
0.0°
Emergence angle
180.0°
Azimuth angle
0.0°
Phase angle
2.21237390821°
Comments
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

Versions

Release date
2018-01-31 23:51:01 UTC+0000
Version (Date)
#1 (2017-07-04 10:52:56 UTC+0000, Updated: 2018-05-01 14:11:31 UTC+0000)