volume | PIER Journals

Abstract

We report the second-harmonic generation (SHG) from single GaN nanowire. The diameter of the GaN nanowire varies from 150 to 400 nm. We present a model for the SHG process in the GaN nanowire; the analysis shows quantitatively that the SHG is dominated by its surface area. The effective second order nonlinear optical susceptibility (χ⁽²⁾_eff) increases as the diameter of the GaN nanowire decreases. For 150-nm diameter GaN nanowire, χ⁽²⁾_eff reaches 136 pm/V.

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Dr. Kangwei Wang

Professor Haoliang Qian

Dr. Zhaowei Liu

Dr. Paul K. L. Yu