Direct Observation of Degenerate Two-Photon Absorption and Its Saturation in WS2 and MoS2 Mono layer and Few-Layer Films
文献类型：期刊论文
| 作者 | Zhang, Saifeng; Dong, Ningning; McEvoy, Niall; O'Brien, Maria; Winters, Sinead; Berner, Nina C.; Yim, Chanyoung; Li, Yuanxin; Zhang, Xiaoyan; Chen, Zhanghai |
| 刊名 | acs nano
 |
| 出版日期 | 2015 |
| 卷号 | 9期号:7页码:7142 |
| 通讯作者 | mcevoy, n (reprint author), trin coll dublin, ctr res adapt nanostruct & nanodevices crann, dublin 2, ireland. |
| 英文摘要 | the optical nonlinearity of ws2 and mos2 monolayer and few-layer films was investigated using the z-scan technique with femtosecond pulses from the visible to the near-infrared range. the nonlinear absorption of few- and multilayer ws2 and mos2 films and their dependences on excitation wavelength were studied. ws2 films with 1-3 layers exhibited a giant two-photon absorption (tpa) coefficient as high as (1.0 +/- 0.8) x 10(4) cm/gw. tpa saturation was observed for the ws2 film with 1-3 layers and for the mos2 film with 25-27 layers. the giant nonlinearity of ws2 and mos2 films is attributed to a two-dimensional confinement, a giant exciton effect, and the band edge resonance of tpa. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 版本 | 出版稿 |
| 源URL | [http://ir.siom.ac.cn/handle/181231/14220]  |
| 专题 | 上海光学精密机械研究所_中科院强激光材料重点实验室 |
| 作者单位 | 1.[Zhang, Saifeng 2.Dong, Ningning 3.McEvoy, Niall 4.Li, Yuanxin 5.Zhang, Xiaoyan 6.Zhang, Long 7.Wang, Jun] Chinese Acad Sci, Key Lab Mat High Power Laser, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China 8.[McEvoy, Niall 9.O'Brien, Maria 10.Winters, Sinead |
| 推荐引用方式 GB/T 7714 | Zhang, Saifeng,Dong, Ningning,McEvoy, Niall,et al. Direct Observation of Degenerate Two-Photon Absorption and Its Saturation in WS2 and MoS2 Mono layer and Few-Layer Films[J]. acs nano,2015,9(7):7142. |
| APA | Zhang, Saifeng.,Dong, Ningning.,McEvoy, Niall.,O'Brien, Maria.,Winters, Sinead.,...&Wang, Jun.(2015).Direct Observation of Degenerate Two-Photon Absorption and Its Saturation in WS2 and MoS2 Mono layer and Few-Layer Films.acs nano,9(7),7142. |
| MLA | Zhang, Saifeng,et al."Direct Observation of Degenerate Two-Photon Absorption and Its Saturation in WS2 and MoS2 Mono layer and Few-Layer Films".acs nano 9.7(2015):7142. |
入库方式： OAI收割
来源：上海光学精密机械研究所
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