J.A. Armstrong, P. Esherick, et al.
Physical Review A
Paper
Nonlinear optical spectroscopy of (3) in LiNbO3
Abstract
By using tunable dye lasers, the third-order optical nonlinear susceptibility (3)(-3,1,1-2) is studied in LiNbO3. (3) shows resonant enhancement when 1-2 is near the polariton frequencies. This behavior is explained in terms of a nonlinear force which drives the polariton modes strongly whenever momentum matching is satisfied. © 1972 The American Physical Society.
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