Absolute intensities and optical constants of crystalline C 2N 2 in the infrared region
Abstract
Infrared absorption spectra of several thin films of crystalline C 2N 2 were investigated in the 4000-200 cm -1 region at 70 K and under ∼0.6 cm -1 resolution. The integrated band intensities were obtained by least square fit of the integrated absorbance vs sample thickness data. The optical constants ( n and k, the real and imaginary parts of the complex refractive index) in the regions of absorption bands were evaluated by the Kramers—Kronig analysis of the absorbance data. These constants reproduce the laboratory spectra to within 12%.
- Publication:
-
Spectrochimica Acta Part A: Molecular Spectroscopy
- Pub Date:
- 1988
- DOI:
- 10.1016/0584-8539(88)80255-1
- Bibcode:
- 1988AcSpA..44...23O