Abstract
Previous results for surface linear optical response in centrosymmetric para-nitroaniline crystals are combined with literature values for the molecular first hyperpolarizability to calculate the surface-induced quadratic response. The average surface quadratic susceptibilities for incident light at a wavelength of 803 nm are calculated to be 71 and 50×10-22m2 V-1 for different surface terminations normal to the [001] direction, and 9 and 7×10-22m2 V-1 for different surface terminations normal to the [101] direction (the natural cleavage plane). The latter values are three orders-of-magnitude below that determined by Kobayashi and Kotani, consistent with their evidence for bulk second-harmonic generation from a new phase at the surface.
Original language | English |
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Pages (from-to) | 6757-6762 |
Number of pages | 6 |
Journal | Journal of Chemical Physics |
Volume | 112 |
Issue number | 15 |
DOIs | |
Publication status | Published - 15 Apr 2000 |