Controlling Voigt waves by the Pockels effect
Controlling Voigt waves by the Pockels effect
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DOI：
10.1117/1.jnp.9.093599
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发表时间：
2014-08
影响因子：
1.5
通讯作者：
T. Mackay
中科院分区：
文献类型：
--
作者：
T. Mackay
摘要。采用折射率为na的流体渗透多孔电光基质材料制备了一种均匀复合材料（HCM），研究了Voigt波在这种材料中的传播。采用扩展的Bruggeman均匀化形式估计了HCM的本构参数。数值研究表明，支持Voigt波在HCM中传播的方向可以通过施加直流电场来控制。此外，这种控制可以实现的程度被发现对主体材料的孔隙度，孔隙的形状，大小和方向以及折射率na敏感。这些发现对于Voigt波在光学传感等方面的潜在技术应用可能特别重要。
Abstract. Voigt wave propagation was investigated in a homogenized composite material (HCM) arising from a porous electro-optic host material infiltrated by a fluid of refractive index na. The constitutive parameters of the HCM were estimated using the extended Bruggeman homogenization formalism. Numerical studies revealed that the directions which support Voigt wave propagation in the HCM could be substantially controlled by means of an applied dc electric field. Furthermore, the extent to which this control could be achieved was found to be sensitive to the porosity of the host material, the shapes, sizes, and orientations of the pores, as well as the refractive index na. These findings may be particularly significant for potential technological applications of Voigt waves such as in optical sensing.