Helium Lines (10.00 – 23.00 microns)
Infrared Helium Lines
Atomic Line | Transition | Wavelength (um) |
HeI | 4sS-4pP | 10.88 |
HEI | 4P-4S,3Po-3S | 10.8819 |
HeI | 7-9 | 11.31 |
HEII | 14-12 | 12.3635 |
HeI | 6-7 | 12.37 |
HeI | 8-11 | 12.39 |
HEII | 11-10 | 13.13 |
HEII | 12-11 | 17.2562 |
HeI | 4sS-4pP | 18.095 |
HEI | 4P-4S, 1Po-1S | 18.0999 |
HeI | 3pP-3dD | 18.62 |
HEI | 3D-3P,3D-3Po | 18.625 |
HEII | 13-12 | 22.1735 |