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CO₂ Ice at 77 K

Ice Datasets
Description
Sample Type Ice
Components CO₂
Ratio 1
Substrate Au
Phase / State
Reference Temperature 77 K
Wavenumber (cm⁻¹) 18311.665 - 18311.665
Wavelength (µm) 0.546 - 0.546

Carbon dioxide (CO₂) ice deposited at 77 K onto a gold (Au) substrate, and held at 77 K during spectroscopic measurements.

The real part (n) of the complex index of refraction was determined using optical measurements done at a temperature of 77 K and a pressure < 5E-5 mm Hg, by ellipsometry at 5461 Å.

Error bars/uncertainties are provided in the downloadable data.

More information can be found in the publication and on the OCdb contributor's page.

Download data (csv)

n

References

Any use of this data should recognize the parent publication(s):

Kruger, J. and Ambs, W. J. (1959) 'Optical Measurements on Thin Films of Condensed Gases at Low Temperatures', Journal of the Optical Society of America, 49:12, pp. 1195-1198.

n 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 28 25.005 1602.533 ✓ ✓ Gavdush et al. (2022)
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 Amorphous 8 2.5 20 ✓ ✓ Gerakines and Hudson (2020)