Here are the main regions and some of their common names:
1. Radio Waves:
* Extremely Low Frequency (ELF): 3 Hz to 3 kHz
* Super Low Frequency (SLF): 3 kHz to 30 kHz
* Very Low Frequency (VLF): 3 kHz to 30 kHz
* Low Frequency (LF): 30 kHz to 300 kHz
* Medium Frequency (MF): 300 kHz to 3 MHz
* High Frequency (HF): 3 MHz to 30 MHz
* Very High Frequency (VHF): 30 MHz to 300 MHz
* Ultra High Frequency (UHF): 300 MHz to 3 GHz
* Super High Frequency (SHF): 3 GHz to 30 GHz
* Extremely High Frequency (EHF): 30 GHz to 300 GHz
2. Microwave:
* This region is often subdivided into bands, such as L, S, C, X, Ku, K, Ka, V, W, and others.
3. Infrared (IR):
* Near-infrared (NIR): 0.75 µm to 2.5 µm
* Shortwave infrared (SWIR): 2.5 µm to 3 µm
* Mid-infrared (MIR): 3 µm to 50 µm
* Longwave infrared (LWIR): 50 µm to 1000 µm
4. Visible Light:
* Violet: 380 nm to 450 nm
* Blue: 450 nm to 495 nm
* Green: 495 nm to 570 nm
* Yellow: 570 nm to 590 nm
* Orange: 590 nm to 620 nm
* Red: 620 nm to 750 nm
5. Ultraviolet (UV):
* Near Ultraviolet (NUV): 315 nm to 400 nm
* Middle Ultraviolet (MUV): 200 nm to 315 nm
* Far Ultraviolet (FUV): 100 nm to 200 nm
* Extreme Ultraviolet (EUV): 10 nm to 100 nm
6. X-rays:
* Soft X-rays: 0.1 nm to 10 nm
* Hard X-rays: 0.01 nm to 0.1 nm
7. Gamma Rays:
* High-energy gamma rays: 100 keV and above
* Low-energy gamma rays: 0.1 MeV to 100 keV
Remember, these are just general categorizations. Within each region, there are countless specific wavelengths, each with potential applications and properties.