Title :
Multiphonon absorption in infra-red fluoride glasses
Author :
Poignant, Hubert
Author_Institution :
CNET, LAB/MER/FOG, Lannion, France
Abstract :
Measurements of the infra-red edge absorption against frequency have been performed with both ZrF4 and HfF4 fluoride glasses. Results show that absorption in the 1600¿1200 cm¿1 frequency range (6¿8 ¿m band) originates from multiphonon processes and depends on the glass composition.
Keywords :
hafnium compounds; infrared spectra of inorganic solids; optical glass; vibrational states in disordered systems; zirconium compounds; HfF4; ZrF4; infra-red fluoride glasses; multiphonon absorption;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19820137
