...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Optical Materials >Influence of gadolinium doping on low- and high-order nonlinear optical properties and transient absorption dynamics of ZnO nanomaterials
【24h】

Influence of gadolinium doping on low- and high-order nonlinear optical properties and transient absorption dynamics of ZnO nanomaterials

机译：ado掺杂对ZnO纳米材料低阶和高阶非线性光学特性和瞬态吸收动力学的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Doping of materials by suitable additives can dramatically modify the physical characteristics of the complex systems. In this paper, we investigate the role of gadolinium concentration on the linear, nonlinear optical properties and transient absorption dynamics of ZnO and Al-doped ZnO. The characteristics of the mentioned materials with different dopant concentrations are evaluated using absorption spectroscopy, Z-scan and pump-probe technique with femtosecond laser pulses at 800 and 400 nm wavelengths. The nonlinear absorption is increased in Al-doped ZnO compared to pure ZnO at 800 nm wavelength. Gadolinium dopant demonstrated a significant reduction in nonlinear refractive index and absorption of Al-doped ZnO but could not influence pure ZnO. The transient absorption dynamics of ZnO and Al-doped ZnO illustrated the decrease of response time with dopant concentration. We also generated high-order harmonics using nanosecond heating pulses to generate laser plasmas and femtosecond driving pulses propagating through the plasmas. Laser plasma was generated from an ablated Gd-doped ZnO and the high-order harmonics were studied by varying the delay between heating and driving pulses.
机译：用合适的添加剂对材料进行掺杂可以显着改变复杂系统的物理特性。在本文中，我们研究了concentration浓度对ZnO和Al掺杂ZnO的线性，非线性光学性质和瞬态吸收动力学的影响。使用吸收光谱法，Z扫描和泵浦探测技术以及在800和400 nm波长的飞秒激光脉冲，评估了上述掺杂剂浓度不同的材料的特性。与800 nm波长的纯ZnO相比，掺Al的ZnO的非线性吸收增加。 d掺杂剂表现出非线性折射率的显着降低和铝掺杂ZnO的吸收，但不会影响纯ZnO。 ZnO和Al掺杂的ZnO的瞬态吸收动力学说明了响应时间随掺杂剂浓度的降低而降低。我们还使用纳秒级加热脉冲产生高阶谐波，以产生激光等离子体和飞秒驱动脉冲传播通过等离子体。从烧蚀的掺Gd的ZnO中产生激光等离子体，并通过改变加热和驱动脉冲之间的延迟来研究高次谐波。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号