Zu diesem lizenzpflichtigen Artikel gibt es eine Open Access Version, die kostenlos und ohne Lizenzbeschränkung gelesen werden kann. Die Open Access Version kann inhaltlich von der lizenzpflichtigen Version abweichen.
Preisinformation
Bitte wählen Sie ihr Lieferland und ihre Kundengruppe
Laser theory is explained and desirable characteristics are indicated with reference to equation of condition for laser action; presently known laser materials are considered in four groupings of gases, crystals, semiconductors, and glasses and miscellaneous, noting differing requirements for, e.g., communications device or one for performing eye operations; growth of crystals and physical aspects of materials are discussed; possible role of ASTM is mentioned in connection with testing and specifications. Before Int Conference on Matls. 1964. (see also Naval Engrs J v 77 n 3 June 1965 p 460-9)