lasev.

1962 New Scientist 1 Feb. 270/3 This is well illustrated by the uses now being made of the entirely novel verb ‘to lase’... It is common currency among those..whose lives are given to the search for materials that will emit light in coherent and narrow-pencilled beams.

1963 New Scientist 10 Jan. 65/3 Hitherto, only certain ionic crystals (notably ruby), some gas mixtures and..one or two liquids, had been persuaded to ‘lase’; that is, to emit coherent infrared or visible light of a single wavelength.

1963 New Scientist 7 Feb. 293/2 Scientists at Standard Telecommunications Laboratories..last week persuaded their version of the gallium arsenide laser to ‘lase’.

1963 Monsanto Mag. Mar. 10/2 Calculations..indicated that gallium arsenide would ‘lase’, or amplify light, if suitably stimulated.

1967 Guardian 11 Feb. 1/1 Can X-ray lasers be made? There is no problem in getting substances to lase at the right frequency.

1969 Sci. Jrnl. Apr. 55/2 The term ‘dye laser’ is generally used. Different dyes lase at different wavelengths and..it has been possible to span without a break the range 700–1000 nm by using some 20 different dyes.

1970 Daily Tel. 28 Aug. (Colour Suppl.) 16/2 Not all atoms can be made to ‘lase’.

1971 Sci. Amer. July 37/2 When the injection current becomes high enough so that the light in the crystal making a round trip along the junction plane is amplified enough to offset losses due to absorption, to scattering, to leakage out of the mirrors and so on, the diode is said to be lasing.

1963 Monsanto Mag. Mar. 9/3 Many variations have been produced since then, employing other solids, as well as gases and liquids, as ‘lasing’ materials.

1966 W. V. Smith & P. P. Sorokin Laser vii. 369 The characteristics of these lasing diodes..differ considerably from those of other lasers.

1973 Physics Bull. Dec. 723/1 Lasing at 145 nm in high pressure krypton has also been achieved..with intense electron beam pumping.