| LWIR | Long Wave Infra Red (wavelength range of 8 to 12 μm) |
| MWIR | Mid Wave Infra Red (wavelength range of 3 to 5 μm) |
| NIR | Near Infra Red (wavelength range of 0.75 to 1 μm) |
| SWIR | Short Wave Infra Red (wavelength range of 0.9 to 1.7 μm, extends to 2.5 μm) |
| Reference: |
| 1. SI Factors |
| 2. Microwave Frequency Band Classification |
| 3. Frequency Electromagnetic Spectrum |