Abstract
Guided-wave second-harmonic generation using a passive planar waveguide covered with an organic nonlinear optical film as thin as a single molecular layer is demonstrated. The phase-matching condition of this process is revealed both with a high degree of waveguide-mode selectivity and a maximum in the frequency response.
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Marowsky, G., Lehmann, S., Neuschäfer, D. et al. Observation of phase-matched optical second-harmonic generation in organic monolayers. Appl. Phys. B 58, 501–503 (1994). https://doi.org/10.1007/BF01081081
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DOI: https://doi.org/10.1007/BF01081081