Abstract
The optical absorption coefficient of five different natural garnet crystals has been measured at 300 K over the wavenumber range from 1000 to 30 000 cm−1. Peaks in the absorption spectrum associated with OH, Fe2+, Fe3+, Mn2+, and Cr3+ ions have been identified. Pure Mg3Al2Si3O12 and Ca3Al2Si3O12 appear to have an intrinsic absorption coefficient below 1 cm−1 in the wavenumber range 3000–30 000 cm−1. There are intrinsic multiphonon lattice peaks at wavenumbers of about 1790 and 2600 cm−1 in all five garnets.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
