Second-harmonic generation in local modes of a truncated periodic structure.
نویسندگان
چکیده
We present an experimental study of the generation of second-harmonic light in a one-dimensional periodic structure truncated by the introduction of a defect in the central period. We observed an enhancement of the nonlinear interaction in the vicinity of the defect when the second-harmonic wave was excited for modes within the forbidden zone or stop band. We also observed an enhancement near the band edge, where the group velocity approaches zero. Second-harmonic generation is completely suppressed for local modes within the forbidden band other than the defect mode. 1995 Optical Society of America
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ورودعنوان ژورنال:
- Optics letters
دوره 20 17 شماره
صفحات -
تاریخ انتشار 1995