Two-photon absorption of Si-n (n=3-10) clusters compared with Si bulk

作者：Lan You Zhao^*

来源：Chemical Physics Letters, 2012, 545: 95-99.

DOI：10.1016/j.cplett.2012.07.034

The two-photon absorption (TPA) properties of the Si-n (n = 3-10) clusters were investigated by using the density functional response approach. The TPA coefficients of the Si clusters are systematically smaller than those of Si bulk for 800-2200 nm. The TPA coefficients of the Si clusters as well as Si bulk increase with a decrease of the input light wavelength. The analysis of the TPA enhancement shows that the channel of double resonance makes a significant contribution to the large TPA coefficients of the Si clusters in the visible range.

• 出版日期2012-8-30
• 单位浙江师范大学