Size
reference
man’s height
paperclip
cells
thickness
paper
baseball
thickness
1 ft
1 cm
1 mm
1 mil
football field
10-2
10-3
10-4
10-5
10-6
10-7
10-8
10-9
10-5
10-4
10-3
10-2
10-1
1
10
102
103
104
105
106
107
108
109
1010
10-9
10-8
10-7
10-6
10-4
10-3
10-2
10-1
1
10
102
103
104
105
106
109
1010
1011
1012
Terahertz
Broadcast and Wireless
Mobile Phones
900MHz-2.4GHz
TV Broadcast
54-700 MHz
Radar
1-100 GHz
Sound Waves
← 20Hz-10kHz
www.sura.org
Copyrighted images used with permission. Rev2C 6-June-2005
Ultraviolet
Near
IR
Near
UV
Extreme UV
Fiber telecom
0.7-1.4 µ
Dental Curing
200-350nm
1018 1019
1020 1021
X-ray
Soft X-ray
Gamma
Hard X-ray
Medical X-rays
10-0.1 Å
Cosmic ray
observations
<<1 Å
Visible Light
425-750THz
700-400nm
Baggage screen
10-1.0 Å
Remotes
850 nm
“mm wave”
“sub-mm”
1017
1 ZHz
Visible wavelengths (nm)
Screening
0.2-4.0 THz
Microwave Oven
2.4 GHz
1 EHz
1015 1016
Infrared
Bio imaging
1-10 THz
Wireless Data
~ 2.4 GHz
Ultrasound
1-20 MHz
1014
Far IR Mid IR
Microwave
electronics
▼
AM radio
600kHz-1.6MHz
FM radio
88-108 MHz
1013
10-10 10-11 10-12
440
108
1 PHz
470
107
1 THz
540
106
1 GHz
575
105
10-5
Radio Spectrum
Sources and Uses of
Frequency Bands
1 pm
1Å
10-1
1 MHz
© 2005 SURA
1 nm
1µ
1
Bands
frequency
(Hz)
subatomic
particles →
water molecule
10
625
electron volt
(eV)
bacteria
102
700
wavenumber
(cm-1)
atom
103
optics
▼
wavelength
λ (m)
viruses
Suntan
400-290nm
Night Vision
10-0.7 µ
λ = 3x108/freq = 1/(wn*100) = 1.24x10-6/eV
PET imaging
0.1-0.01 Å
Crystallography
2.2-0.7 Å
®