NH₃ Ice at 30 K
| Sample Type | Ice |
|---|---|
| Components | NH₃ |
| Ratio | 1 |
| Substrate | Si |
| Phase / State | Amorphous |
| Reference Temperature | 30 K |
| Wavenumber (cm⁻¹) | 4000.807 - 7000.689 |
| Wavelength (µm) | 1.428 - 2.499 |
Amorphous ammonia (NH₃) ice deposited at 30 K onto a silicon (Si) substrate, and held at 30 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 30 K, by normal-incidence infrared transmission spectroscopy from 7000 to 4000 cm⁻¹ with a resolution of 2 cm⁻¹.
The accuracy of the n and k indices is estimated at ~1%, except when k < 0.01, which has larger errors.
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):
Zanchet, A., Rodríguez-Lazcano, Y., Gálvez, Ó., Herrero, V. J., Escribano, R. and Maté, B. (2013) 'Optical Constants of NH₃ and NH₃:N₂ Amorphous Ices in the Near-Infrared and Mid-Infrared Regions', The Astrophysical Journal, 777:26, 11 pp.