Table 2 Main Raman vibrational modes reported in tantalo-gallate glasses
From: Tantalo-gallate glass as robust nonlinear medium for mid-infrared photonics
Wavenumber (cm−1) | Band assignments |
|---|---|
200-300 | network-modifying cations vibrations and out-of-plane oxygen motions in bent T–O–T bridge |
450 | Stretching and bending modes of in-the-plane Ge–O–Ge oxygen motions |
510 | Stretching and bending modes of in-the-plane T–O–T oxygen motions |
650 | Ga-O stretching vibration in [Ga∅3O−]− units |
700-710 | Ta-O stretching vibration in TaO6 units |
810 | Ge-O stretching vibration in Ge∅3O− units |
