Ice Datasets

Description

Sample Type	Ice
Components	C₂H₂
Ratio	1
Substrate	KBr
Phase / State	Amorphous
Reference Temperature	60 K
Wavenumber (cm⁻¹)	500 - 5000
Wavelength (µm)	2 - 20

Amorphous acetylene (C₂H₂) ice deposited at 12 K onto a potassium bromide (KBr) substrate, then warmed up to 60 K, and held at 60 K during spectroscopic measurements.

The real (n) and imaginary (k) parts of the complex index of refraction were determined using optical measurements done at a temperature of 60 K, by infrared transmission spectroscopy from 5000 to 500 cm⁻¹ with a resolution of 2 cm⁻¹.

The transmission (T) spectrum of a 0.5-µm-thick sample is also provided in this dataset.

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

Download data (csv)

n,k,T,All

References

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

Hudson, R. L., Ferrante, R. F. and Moore, M. H. (2014) 'Infrared spectra and optical constants of astronomical ices: I. Amorphous and crystalline acetylene', Icarus, 228, pp. 276-287.

https://doi.org/10.1016/j.icarus.2013.08.029

Chemical	Ratio	Phase / State	T (K)	Wavelength Min (µm)	Wavelength Max (µm)	Compatible	n	k	Reference
C₂H₂	1	Amorphous	60	1.429	2.857	*	✓	✓	Hudson et al. (2014)
C₂H₂	1	Amorphous	12	1.429	2.857		✓	✓	Hudson et al. (2014)
C₂H₂	1	Amorphous	12	2	20		✓	✓	Hudson et al. (2014)
C₂H₂	1	Amorphous	20	1.429	2.857		✓	✓	Hudson et al. (2014)
C₂H₂	1	Amorphous	20	2	20		✓	✓	Hudson et al. (2014)
C₂H₂	1	Amorphous	30	1.429	2.857		✓	✓	Hudson et al. (2014)
C₂H₂	1	Amorphous	30	2	20		✓	✓	Hudson et al. (2014)
C₂H₂	1	Amorphous	40	1.429	2.857		✓	✓	Hudson et al. (2014)
C₂H₂	1	Amorphous	40	2	20		✓	✓	Hudson et al. (2014)
C₂H₂	1	Amorphous	50	1.429	2.857		✓	✓	Hudson et al. (2014)
C₂H₂	1	Amorphous	50	2	20		✓	✓	Hudson et al. (2014)
C₂H₂	1	Amorphous	70	1.429	2.857		✓	✓	Hudson et al. (2014)
C₂H₂	1	Amorphous	70	2	20		✓	✓	Hudson et al. (2014)

OCdb Libraries

C₂H₂ Ice at 60 K

n/k Values

T Values