MIR Transmission spectrum of 0.775µm CH4 II film at 15 K
- Title
- MIR Transmission spectrum of 0.775µm CH4 II film at 15 K
- Data reference
- Trotta, Frederic; Schmitt, Bernard (1995): MIR Transmission spectra at 15 K of solid CH4-II films with increasing thickness (0.275-1.95µm). SSHADE/GhoSST (OSUG Data Center). Dataset/Spectral Data.
- Publications
- Database
- Experimentalists
- Experiment type
- laboratory measurement
- Type
- transmission
- Instrument
- Nicolet 800 – transmission Mid-IR
- Sample holder
- CsI window 2mm thick cooled by He cryostat in UHV chamber with 2 CsI windows 5mm thick
- Standard medium
- vacuum
- Observation mode
- spectrum
- Spectral range type(s)
- MIR
- Valid spectral range(s)
-
Min - Max ($cm^{-1}$) Sampling ($cm^{-1}$) Resolution ($cm^{-1}$) Position accuracy ($cm^{-1}$) Absorption edge #1 490.0 - 6500.0 0.4821507048 0.92 0.05 - Scan number
- 100
Definition: incidence and emergence angles are positive with origin at nadir. Emergence angle in transmission is larger than 90° (=180°-i).
- Observation geometry
- direct
- Observation mode
- fixed angles
- Incidence angle
- 0.0°
- Emergence angle
- 180.0°
- Azimuth angle
- 0.0°
- Phase angle
- 180.0°
- Resolution illumination
- 15.0°
- Resolution observation
- 20.0°
Illumination
- Type of polarization
- no
Observation
- Type of polarization
- no
- Comments
- possibly partly polarized beam by beamsplitter
- Observation mode
- single spot
- Image size
- 8.0 x 8.0 $mm$
- Resolutions
- 8.0 ${\pm}$ 1.0 $mm$
- Comments
- spot located in center of window
- Experiment
- MIR Transmission spectra at 15 K of solid CH4-II films with increasing thickness (0.275-1.95µm)
- Date begin
- 1995-04-25
- Release date
- 2018-01-31 23:51:01 UTC+0000
- Version (Date)
- #1 (2018-01-31 23:51:01 UTC+0000, Updated: 2022-12-16 09:59:29 UTC+0000)
- History
-
Date Mode Version Status Comments 2017-11-17 17:16:56 UTC+0000 first import #1 valid version 2013-01-29: new CH4 II transmission spectrum 15K (mid-IR)
- Analysis
- no: raw calibrated transmission spectrum - slope due to thin film spectral interference fringe
- Quality flag
- 4
- Validator(s)