Resonant and nonresonant second-harmonic generation in a single cadmium sulfide nanowire

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2017,（6）
• 页码范围: 63-66
• 页数: 4页
• 语种: 英文
• DOI: 10.3788/COL201715.061901

摘要

We experimentally investigate the resonant and nonresonant second-harmonic generation in a single cadmium sulfide (CdS) nanowire.The second-order susceptibility tensor is determined by analyzing the forward second-harmonic signals of the CdS nanowire.Our results show that (1) d33/d31 =-2.5 at a nonresonant input wave-length of 1050 nm;(2) d33/d31 =-1.9 at a resonant wavelength of 740 nm.The difference can be attributed to the polarization-dependent resonance.