Abstract

We have observed stimulated emission on the transitions $4^3{S}_1-3^3{P}_J^{°}$ near 518 nm following pulsed laser excitation of Mg vapor near the $3^1{S}_0-3^3{P}_1^{°}$ resonance at 285 nm. The emission has a divergence similar to the pump laser and closely follows the incident laser in time. The mechanism apparently involves pumping an accidental coincidence $3^1{S}_0-3^3{P}_1^{°}$ and $3^3{P}_J^{°}-5^3{D}_J$, permitting depletion of the lower level of the triplet transition. Photoionization of the Mg vapor creates a large electron density (≲10¹³ cm⁻³); electron-impact collisions are presumed to mediate the process, transferring population from the laser-pumped $3^1{P}_1^{°}$ level to the triplet manifold.

© 1985 Optical Society of America

Fluorescence-detected Raman-optical double-resonance spectroscopy of glyoxal vapor

A. B. Duval, D. A. King, R. Haines, N. R. Isenor, and B. J. Orr
J. Opt. Soc. Am. B 2(9) 1570-1581 (1985)

Extreme-ultraviolet emission spectra of core-excited levels in sodium and magnesium

K. D. Pedrotti, A. J. Mendelsohn, R. W. Falcone, J. F. Young, and S. E. Harris
J. Opt. Soc. Am. B 2(12) 1942-1947 (1985)

Stimulated electronic Raman scattering in barium vapor

R. D. Verma, S. M. Jaywant, and Z. Iqbal
J. Opt. Soc. Am. B 2(3) 403-406 (1985)

Laser-magnetic-resonance detection of magnesium atoms in the metastable ³P_0,1,2 states

Massimo Inguscio, K. R. Leopold, J. S. Murray, and K. M. Evenson
J. Opt. Soc. Am. B 2(9) 1566-1569 (1985)

Na₂ c Σ3g+→a Σ3u+ bound–free emission by electron-beam excitation

Da Xing, Ken-ichi Ueda, Qi Zhang, and Hiroshi Takuma
J. Opt. Soc. Am. B 8(5) 917-922 (1991)