CO₂ Ice at 28 K
| Sample Type | Ice |
|---|---|
| Components | CO₂ |
| Ratio | 1 |
| Substrate | HRFZ-Si |
| Phase / State | |
| Reference Temperature | 28 K |
| Wavenumber (cm⁻¹) | 6.24 - 399.918 |
| Wavelength (µm) | 25.005 - 1602.533 |
Carbon dioxide (CO₂) ice deposited at 11 K onto a high-resistivity float-zone silicon (HRFZ-Si) substrate, then warmed up to 28 K, and held at 28 K during spectroscopic measurements.
The real (n) and imaginary (k) parts of the complex index of refraction were determined from 25 to 1602 µm using optical measurements done at a temperature of 28 K, by THz time-domain spectroscopy with a resolution of ~0.03 THz and infrared transmission spectroscopy with a resolution of 1 cm⁻¹.
The opacity (
) spectrum of a CO₂ ice sample deposited for 3 minutes is provided in this dataset.
More information can be found in the publication and on the OCdb contributor's page.
Any use of this data should recognize the parent publication(s):
Gavdush, A. A., Kruczkiewicz, F., Giuliano, B. M., Müller, B., Komandin, G. A., Grassi, T., Theulé, P., Zaytsev, K. I., Ivlev, A. V. and Caselli, P. (2022) 'Broadband spectroscopy of astrophysical ice analogues. II. Optical constants of CO and CO₂ ices in the terahertz and infrared ranges', Astronomy & Astrophysics, 667, A49, 9 pp.
n/k Values
Compatible Datasets (i.e., same molecule, phase, and temperature) are marked with *
| Select | Chemical | Ratio | Phase / State | T (K) | Wavelength Min (µm) |
Wavelength Max (µm) |
Compatible | n | k | Reference |
|---|---|---|---|---|---|---|---|---|---|---|
|
|
CO₂ | 1 | 10 | 2.5 | 19.997 | ✓ | ✓ | Hudgins et al. (1993) | ||
|
|
CO₂ | 1 | 10 | 2.504 | 19.184 | ✓ | ✓ | Ehrenfreund et al. (1997) | ||
|
|
CO₂ | 1 | 12.5 | 2.381 | 20 | ✓ | ✓ | Baratta and Palumbo (1998) | ||
|
|
CO₂ | 1 | 30 | 2.5 | 19.997 | ✓ | ✓ | Hudgins et al. (1993) | ||
|
|
CO₂ | 1 | Dissociated | 4.2 | 0.546 | 0.546 | ✓ | - | Kruger and Ambs (1959) | |
|
|
CO₂ | 1 | 4.2 | 0.546 | 0.546 | ✓ | - | Kruger and Ambs (1959) | ||
|
|
CO₂ | 1 | 50 | 2.5 | 19.997 | ✓ | ✓ | Hudgins et al. (1993) | ||
|
|
CO₂ | 1 | 50 | 2.504 | 18.231 | ✓ | ✓ | Ehrenfreund et al. (1997) | ||
|
|
CO₂ | 1 | Polycrystalline | 65-80 | 1.1 | 1.1 | ✓ | - | Yamada and Person (1964) | |
|
|
CO₂ | 1 | Crystalline | 70 | 2.5 | 20 | ✓ | ✓ | Gerakines and Hudson (2020) | |
|
|
CO₂ | 1 | 70 | 2.5 | 19.997 | ✓ | ✓ | Hudgins et al. (1993) | ||
|
|
CO₂ | 1 | 77 | 0.546 | 0.546 | ✓ | - | Kruger and Ambs (1959) | ||
|
|
CO₂ | 1 | Amorphous | 8 | 2.5 | 20 | ✓ | ✓ | Gerakines and Hudson (2020) |