期刊
JOURNAL OF NONLINEAR OPTICAL PHYSICS & MATERIALS
卷 26, 期 2, 页码 -出版社
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0218863517500163
关键词
Selenium nanomaterials; optical limiting; Kerr effect; Z-scan
资金
- Corning Incorporated
Selenium nanoparticles were fabricated using a physical deposition method based on heterogeneous condensation. The Selenium nanoparticles were deposited on a quartz substrate and the ultrafast nonlinear optical responses were investigated by using the Z-scan technique. The nanosize films showed two-photon absorption and a large positive nonlinear refractive index at 800 nm excitation wavelength. The obtained real and imaginary parts of the intensity-dependent complex third-order nonlinear susceptibility of the Selenium nanoparticles ranged from 10(-11) to 10(-8) (esu) for different irradiance levels.
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