Noun
micrometre (plural micrometres)
An SI/MKS unit of measure, the length of one millionth of a metre. Symbol: µm, um, rm
Because the ratio of surface area to volume (and thus mass) increases with decreasing particle size, dusty ( micrometre -size) particles are susceptible to radiation pressure even in the outer solar system. Source: Internet
Computer generated light diffraction pattern from a circular aperture of diameter 0.5 micrometre at a wavelength of 0.6 micrometre (red-light) at distances of 0.1 cm – 1 cm in steps of 0.1 cm. Source: Internet
However, Ytterbium doped fibre lasers and amplifiers, operating near 1 micrometre wavelength, have many applications in industrial processing of materials, as these devices can be made with extremely high output power (tens of kilowatts). Source: Internet
In the SI, the systematic name micrometre became the official name of the unit, and μm became the official unit symbol. Source: Internet
Spectral and atmospheric properties of brown dwarfs The majority of flux emitted by L and T dwarfs is in the 1 to 2.5 micrometre near-infrared range. Source: Internet
The peak of the blackbody spectrum is in the deep infrared, at about 10 micrometre wavelength, for relatively cool objects like human beings. Source: Internet