The Electromagnetic Spectrum


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The Gamma(γ)-Ray Spectrum

spectral range: < 0.01 nm
dimension: < 10-12 m

Wavelength in pm < 10 pm
Frequency in EHz > 30 EHz


The X-Ray Spectrum

spectral range: 0.01 - 10 nm
dimension: 10-8 - 10-11 m

Bands Hard X-Rays Soft X-Rays
Wavelength in pm 1 pm - 100 pm 100 pm - 10,000 pm
Frequency in PHz 300,000-3000 3000-30


UV - The Ultraviolet Spectrum

spectral range: 10 - 400 nm
dimension: 10-7 - 10-8 m

Bands EUV UV-C UV-B UV-A
Wavelength in nm 10-124 100-280 280-315 315-400
Frequency in THz 30,000-2419 3000-1071 1071-952 952-750


VIS - The Visible Spectrum

spectral range: 390 - 790 nm
dimension: 10-7 m

Colour Complementary colours button violet blue green yellow orange red
Wavelength in nm 390-420 420-480 480-560 560-580 580-630 630-790
Frequency in THz 769-714 714-624 624-535 535-517 517-476 476-379


IR - The Infrared Spectrum

spectral range: 0.7 - 1000 μm
dimension: 10-7 - 10-3 m

Bands CIE-System IR-A IR-B IR-C
Wavelength in μm 0.7-1.4 1.4-3.0 3-1000
Frequency in THz 430-215 215-100 100-0.3

Bands ISO 20473 NIR MIR FIR
Wavelength in μm 0.78-3.0 3.0-50 50-1000
Frequency in THz 384-100 100-6 6-0.3


The Microwave Spectrum

spectral range: 0.001 - 1 m
dimension: 10-3 - 101 m

Bands RSGB D F W E V U Q KA K KU X C S L
Wavelength in mm 1.8 - 2.7 2.1 - 3.3 2.7 - 4.0 3.3 - 5.0 4.0 - 6.0 5.0 - 7.5 6.0 - 9.0 5.0 - 11.3 11.3 - 16.7 16.7 - 25.0 25.0 - 37.5 37.5 - 75.0 75.0 - 150.0 150.0 - 300.0
Frequency in GHz 110 - 170 90 - 140 75 - 110 60 - 90 50 - 75 40 - 60 33 - 50 26.5 - 40 18 - 26.5 12 - 18 8 - 12 4 - 8 2 - 4 1 - 2


The Radio Spectrum

spectral range: 1 mm - 100,000 km
dimension: 10-3 - 105 m

Bands THF EHF SHF UHF VHF HF MF LF VLF ULF SLF ELF TLF
Wavelength in m 0.0001 - 0.001 (100 μm - 1 mm) 0.001 - 0.01 (1 - 10 mm) 0.01 - 0.1 (10 - 100 mm) 0.1 - 1 1 - 10 10 - 100 100 - 1,000 (100 m - 1 km) 1,000 - 10,000 (1 - 10 km) 10,000 - 100,000 (10 - 100 km) 100,000 - 1,000,000 (100 - 1,000 km) 1,000,000 - 10,000,000 (1,000 - 10,000 km) 10,000,000 - 100,000,000 (10,000 - 100,000 km) > 100,000,000 (> 100,000 km)
Frequency 300 - 3000 GHz 30 - 300 GHz 3 - 30 GHz 300 MHz - 3 GHz 30 - 300 MHz 3 - 30 MHz 300 kHz - 3 MHz 30 - 300 kHz 3 - 30 kHz 300 Hz - 3 kHz 30 - 300 Hz 3 - 30 Hz < 3 Hz


Units and dimensions:
Units of length
mm, Millimeter, 10-3 m
μm, Micrometer, 10-6 m
nm, Nanometer, 10-9 m
pm, Picometer, 10-12 m

Units of Frequency
KHz, Kilohertz, 103 Hz
MHz, Megahertz, 106 Hz
GHz, Gigahertz, 109 Hz
THz, Terahertz, 1012 Hz
PHz, Petahertz, 1015 Hz
EHz, Exahertz, 1018 Hz


Referenzen:
Wikipedia, The Free Encyclopedia
Roy, Archie (ed.) Oxford Illustrated Encyclopedia of The Universe, Oxford University Press 1992



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last updated: 07.11.23