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Second-harmonic generation in a near-field optical-fiber probe

机译:近场光纤探头中的二次谐波产生

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Second-harmonic generation (SHG) in a near-field optical-fiber probe was observed. The tip of the probe consists of a triple-tapered fiber with an aluminum coating. For a fiber probe with an aperture size of 100 nm, the SHG conversion factor was 2.0179L?0~(11) cm~(2)/W, which is as large as that of a 5-mm KDP crystal. In a probe-to-probe experiment, we demonstrated that SHG took place at the aluminum coating on the fiber probe.
机译:在近场光纤探针中观察到二次谐波(SHG)。探头的尖端由带铝涂层的三层锥形纤维组成。对于孔径为100 nm的光纤探针,SHG转换因子为2.0×179L≤0〜(11)cm〜(2)/ W,与5 mm KDP晶体的SHG转换因子一样大。在探针测试中,我们证明了SHG发生在光纤探针的铝涂层上。

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