Abstract

An apparatus has been developed which is capable of measuring radiative lifetimes for energy levels that can be reached in absorption. At present, lifetimes in the range 15 nsec to 5 μsec can be measured, but the range can be extended in both directions. The lifetime of the $7p\hspace{0.17em}{{}^{2}P}_{\frac{3}{2}}$ state of cesium is measured to be 111±6 nsec, in moderately good agreement with one previous determination and with a Bates–Damgaard calculation. The lifetime of the 3p ²P states of sodium is measured to be 16.1 ± 1 nsec, in excellent agreement with other measurements.

© 1968 Optical Society of America

Lifetime Measurements of the 4s²S_1/2 and 3d²D States of Aluminum by the Phase-Shift Method

Paul T. Cunningham
J. Opt. Soc. Am. 58(11) 1507-1509 (1968)

An Apparatus for the Precise Determination of Lifetimes of Atomic States

E. E. Habib, B. P. Kibble, and G. Copley
Appl. Opt. 7(4) 673-675 (1968)

Atomic-Lifetime Measurements for Neutral and Ionized Sodium and Potassium

T. Andersen, J. Desesquelles, K. A. Jessen, and G. Sørensen
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Measurement of Lifetimes of Excited States of Na, Tl, In, Ga, Cu, Ag, Pb, and Bi by the Phase-Shift Method

Paul T. Cunningham and John K. Link
J. Opt. Soc. Am. 57(8) 1000-1007 (1967)

Experimental Lifetimes of the 5p Levels in Argon i*

Jules Z. Klose
J. Opt. Soc. Am. 58(11) 1509-1512 (1968)