TY - JOUR
T1 - S-8 Enhanced and Stimulated Multiphoton Processes in Free Atoms
AU - Yatsiv, Shaul
AU - Rokni, M.
AU - Barak, S.
PY - 1968/11
Y1 - 1968/11
N2 - An enhanced two-photon emission has been observed between the 6S and the 4S levels of potassium. The priming field is the stimulated electronic Raman emission at 2720 cm-1 due to scattering of ruby laser radiation from the 4P3/2 state in potassium. The intense emission at the complementary frequency φ2is close to the 5P →4S resonance lines. As a result, the coupling coefficient has a resonance character that is favorable for the enhancement. The observed results are compared with a simple analysis. The relation of the enhanced emission with two-quantum absorption, stimulated Raman effect, and parametric four-photon processes is discussed.
AB - An enhanced two-photon emission has been observed between the 6S and the 4S levels of potassium. The priming field is the stimulated electronic Raman emission at 2720 cm-1 due to scattering of ruby laser radiation from the 4P3/2 state in potassium. The intense emission at the complementary frequency φ2is close to the 5P →4S resonance lines. As a result, the coupling coefficient has a resonance character that is favorable for the enhancement. The observed results are compared with a simple analysis. The relation of the enhanced emission with two-quantum absorption, stimulated Raman effect, and parametric four-photon processes is discussed.
UR - http://www.scopus.com/inward/record.url?scp=84938018952&partnerID=8YFLogxK
U2 - 10.1109/JQE.1968.1074980
DO - 10.1109/JQE.1968.1074980
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AN - SCOPUS:84938018952
SN - 0018-9197
VL - 4
SP - 900
EP - 904
JO - IEEE Journal of Quantum Electronics
JF - IEEE Journal of Quantum Electronics
IS - 11
ER -