• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advanced Functional Materials >Infrared Glass-Ceramics with Multidispersion and Gradient Refractive Index Attributes
【24h】

Infrared Glass-Ceramics with Multidispersion and Gradient Refractive Index Attributes

机译：具有多色散和渐变折射率属性的红外玻璃陶瓷

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

Infrared (IR) glass-ceramics (GCs) hold the potential to dramatically expand the range of optical material solutions available for use in bulk and planar optical systems in the IR. Current material solutions are limited to single- or polycrystalline materials and traditional IR-transparent optical glasses. GCs that can be processed with spatial control and extent of induced crystallization present the opportunity to realize an effective refractive index variation, enabling arbitrary gradient refractive index elements with tailored optical function. This work discusses the role of the parent glass composition and morphology on nanocrystal phase formation in a multicomponent chalcogenide glass. Through a two-step heat treatment protocol, a Ge-As-Pb-Se glass is converted to an optical nanocomposite where the type, volume fraction, and refractive index of the precipitated crystalline phase(s) define the resulting nanocomposite's optical properties. This modification results in a giant variation in infrared Abbe number, the magnitude of which can be tuned with control of crystal phase formation. The impact of these attributes on the GCs' refractive index, transmission, dispersion, and thermo-optic coefficient is discussed. A systematic protocol for engineering homogeneous or gradient changes in optical function is presented and validated through experimental demonstration employing this understanding.
机译：红外（IR）玻璃陶瓷（GC）具有极大地扩展可用于IR中大块和平面光学系统的光学材料解决方案范围的潜力。当前的材料解决方案仅限于单晶或多晶材料以及传统的IR透明光学玻璃。可以通过空间控制和诱导晶化程度进行处理的GC提供了实现有效折射率变化的机会，从而可以实现具有定制光学功能的任意梯度折射率元素。这项工作讨论了母体玻璃成分和形态对多组分硫属化物玻璃中纳米晶相形成的作用。通过两步热处理方案，将Ge-As-Pb-Se玻璃转化为光学纳米复合材料，其中沉淀的结晶相的类型，体积分数和折射率定义了所得纳米复合材料的光学性质。这种修改导致红外阿贝数的巨大变化，其大小可以通过控制晶体相的形成来调整。讨论了这些属性对GC的折射率，透射率，色散和热光系数的影响。提出了用于工程化光学功能的均质或梯度变化的系统协议，并通过利用这种理解的实验演示进行了验证。

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