Helium Lines (1.30 – 1.80 microns)
Infrared Helium Lines
| Atomic Line | Transition | Wavelength (um) |
| HEI | 5F-3D,1Fo-1D | 01.2976 |
| HEII | 18-7 | 01.3150 |
| HEI | 5S-3P,1S-1Po | 01.3415 |
| HEII | 17-7 | 01.3442 |
| HEII | 15-7 | 01.4273 |
| HEII | 8LIMIT | 01.4578 |
| HEII | 9-6 | 01.4765 |
| HEII | 14-7 | 01.4882 |
| HEI | 4P-3S,1Po-1S | 01.5088 |
| HEII | 13-7 | 01.5719 |
| HEII | 25-8 | 01.6241 |
| HEII | 24-8 | 01.6400 |
| HEII | 23-8 | 01.6584 |
| HEII | 22-8 | 01.6799 |
| HEII | 12-7 | 01.6926 |
| HEI | 4D-3P,3D-3Po | 01.7007 |
| HEII | 21-8 | 01.7053 |
| HEII | 20-8 | 01.7355 |
| HEII | 19-8 | 01.7717 |
| HEII | 18-8 | 01.8167 |