# List of allowed materials

| **Name**   | **Description**                        |
|:-----------|:---------------------------------------|
| SOI        | Silicon-on-insulator                   |
| SiN        | Silicon nitride                        |
| AlOx       | Aluminium oxide                        |
| AlN        | Aluminium nitride                      |
| GaAs       | Gallium arsenide                       |
| GaN        | Gallium nitride                        |
| Ge-on-Si   | Germanium-on-Silicon, mostly for MIR   |
| InP        | Indium phospide                        |
| InP-on-SOI | InP epitaxially grown on SOI insulator |
| TFLN       | Thin-film lithium niobate              |
| BTO        | Barium titanate                        |