We only have this paper's title and publication details.
Read it at the sourceAnswers are grounded in this paper and cite their sources.
"Problems of Non-linear Optics." Optica Acta: International Journal of Optics, 19(11), pp. 951–952
No takes yet. Share an insight, caveat, or question.
Donald W. Goodwin (1972) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: