absorption line
absorption spectrum
band spectrum
atomic spectrum
absorption band
lineshape
spectral line
diffraction grating
homogeneous width
multiplet
nuclear magnetic resonance
emission line
electromagnetic spectrum
glow discharge
microwave
photographic density
optical density
transmission density
absorbance
Stark effect
waveband
beam
electromagnetic wave
electron beam
ray
Gaussian beam
fluorescence
spider wheel
coherent light
absorption spectroscopy
linebroadening
upscattering
band
fine structure
space wave
light spectrum
Fraunhofer line
photovoltaic effect
linewidth
interference filter
hyperfine structure
submillimeter wave radiation
Rayleigh scattering
emission spectrum
spectrum line
coax cable
spectrum
coaxial cable
coax
backscatter
lambda
microwave spectroscopy
line spectrum
infrared spectrum
gravitational redshift
diffraction
mediumwave infrared
monochromator
raypath
false bottom
chromophore
infrared
Zeeman effect
linestrength
infrared radiation
photoelectric effect
infrared emission
infrared light
multifluorescence
birefringence
electromagnetic radiation
airwaves
T-ray
field emission