| GST | Ge-Sb-Te |
| GSS4T1 | Ge2Sb2Se4Te1 |
| FEM | finite element method |
| PML | perfect matching layer |
| ED | electric dipole |
| MD | magnetic dipole |
| EQ | electric quadrupole |
| MQ | magnetic quadrupole |
| GST | Ge-Sb-Te |
| GSS4T1 | Ge2Sb2Se4Te1 |
| FEM | finite element method |
| PML | perfect matching layer |
| ED | electric dipole |
| MD | magnetic dipole |
| EQ | electric quadrupole |
| MQ | magnetic quadrupole |