Abstract
A method is described for measuring the light pressure and energy of a laser pulse. The method is based on a transformation of the kinetic energy acquired by a suspended object from the laser pulse into the potential energy of a twisted elastic filament. Comparative measurements are made of the energy radiated by a pulsed ruby laser (λ = 6943 Å) by a calorimetric method and by a method based on measurement of the light pressure. This latter method essentially eliminates the influence of the radiometric effect on the measured results. It permits a quite accurate measurement of the light pressure and energy of a laser pulse at pressures of the order of 10−5 torr and below.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, Vol.12, No. 6, pp. 48–54, June, 1969.
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Kleiman, Z.Y., Goloviznin, G.I. Measurement of the light pressure and energy of a laser pulse. Soviet Physics Journal 12, 726–730 (1969). https://doi.org/10.1007/BF00814170
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DOI: https://doi.org/10.1007/BF00814170