Demonstration of self-phase modulation in high-nonlinearity CdTe nanowires

C. G. Xin; X. Guo; L. M. Tong

doi:10.1117/12.2543293

12 March 2020 Demonstration of self-phase modulation in high-nonlinearity CdTe nanowires

C. G. Xin, X. Guo, L. M. Tong

Proceedings Volume 11440, 2019 International Conference on Optical Instruments and Technology: Micro/Nano Photonics: Materials and Devices; 1144009 (2020) https://doi.org/10.1117/12.2543293
Event: 2019 International Conference on Optical Instruments and Technology, 2019, Beijing, China

Abstract

Optical spectral broadening induced by self-phase modulation (SPM) in single CdTe nanowires is measured. A significant spectral broadening of about 10 nm is observed using ps near-infrared (NIR) pulses with coupled peak power of a dozen W. Benefiting from the large effective nonlinearity and refractive index of these nanowires, the necessary propagating length goes down to several hundred μms. A relatively large nonlinear-index coefficient (n₂) more than 1×10-¹⁷ m² /W is obtained from transmission spectra experimentally within measured spectral region, which suggest great possibility for these nanowires in developing ultracompact nonlinear optical devices.

Citation Download Citation

C. G. Xin, X. Guo, and L. M. Tong "Demonstration of self-phase modulation in high-nonlinearity CdTe nanowires", Proc. SPIE 11440, 2019 International Conference on Optical Instruments and Technology: Micro/Nano Photonics: Materials and Devices, 1144009 (12 March 2020); https://doi.org/10.1117/12.2543293

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