Assertion: laser's beam | /r/HasProperty | useful
Facets:
value: for superficial skin lesions
type: PURPOSE
value: in many technologies
type: OTHER
value: in instruments
type: OTHER
Source sentences:
text: A laser is produces a very narrow beam of light that is useful in many technologies and instruments.
text: In Q-switched mode, Nd:YAG produces 2 wavelengths, one in the infrared range (1064 nm) and the second beam of 532 nm wavelength which is useful for superficial skin lesions .