Abstract

Photon echoes are observed for the first time in plasmas on atomic metastable states populated by rf discharge in helium at pressures from 0.01 to 0.5 Torr. The echoes are generated by tunable dye-laser excitation. The collision cross section for echo dephasing on the He 2 ³S–3 ³P transition at 3888 Å by collisions with ground-state atoms is 5 × 10⁻¹⁴ cm² ± 20%. Echoes are also observed on the 3P metastable manifold in neon.

© 1978 Optical Society of America

Photon-echo studies of collisional relaxation in weakly ionized noble-gas mixtures

M. R. Woodworth
Opt. Lett. 8(6) 307-309 (1983)

Concentration independence of photon echo lifetimes in Pr³⁺:LaF₃

A. Yamagishi and A. Szabo
Opt. Lett. 2(6) 160-162 (1978)

Spin-lattice relaxation in the excited ⁴S_3/2 state of Er³⁺ in LaF₃

M. M. Broer, J. Hegarty, G. F. Imbusch, and W. M. Yen
Opt. Lett. 3(5) 175-177 (1978)

Collisional effects in the multiple infrared photon absorption in SF₆

G. P. Quigley
Opt. Lett. 3(3) 106-108 (1978)

Measurement of the He 1s2s¹S₀ isotopic shift using a tunable VUV anti-Stokes light source

R. W. Falcone, J. R. Willison, J. F. Young, and S. E. Harris
Opt. Lett. 3(5) 162-163 (1978)