Assertion: laser's beam | /r/HasProperty | light
Facets:
value: usually
type: DEGREE
Source sentences:
text: Some lasers are not single spatial mode and have light beams that diverge more than is required by the diffraction limit.
text: In 1949, he performed the first successful treatment of a retinal detachment with a light beam (light coagulation) by with a self-constructed device on the roof of the ophthalmic clinic at the University of Hamburg-Eppendorf.
text: A laser is a light beam that can be focused on a very small area.
text: A beam of energy, usually light consisting of many different wavelengths, like the beam of a flashlight only more tightly focused, is used to excite the electrons to “jump” to a higher energy level.