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首页> 外文期刊>Applied optics >Compact linearly polarized ceramic laser made with anisotropic nanostructured thin films
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Compact linearly polarized ceramic laser made with anisotropic nanostructured thin films

机译：由各向异性纳米结构薄膜制成的紧凑型线性偏振陶瓷激光器

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A novel method is proposed for the fabrication of polarizing laser mirrors for compact solid-state lasers using glancing angle deposition. Changing the inclination angle and the azimuthal orientation of the substrate during deposition allows one to create and control in-plane birefringence of a deposited thin film by changing its nanostructure. Principal refractive indices of tungsten trioxide films were determined for various deposition angles using transmission and reflection ellipsometry. High-reflectance contrast between orthogonal linear polarization directions was obtained using a single material without any additional processing steps. These birefringent films were the building blocks of a Bragg mirror that was tested as an output coupler of a (Yb0.1Y0.9)(3)Al5O12 ceramic laser in a laser-diode end-pumped configuration. Continuous-wave, linearly polarized, transverse single-mode laser emission was obtained at a wavelength of 1030 nm with a polarization extinction ratio higher than 973 (30 dB). (C) 2015 Optical Society of America
机译：提出了一种新的方法，该方法利用掠射角沉积法制造用于紧凑型固态激光器的偏振激光镜。在沉积过程中改变衬底的倾斜角和方位角取向，可以通过改变其纳米结构来产生和控制所沉积薄膜的面内双折射。使用透射和反射椭圆光度法确定了各种沉积角度下三氧化钨膜的主折射率。使用单一材料无需任何其他处理步骤即可获得正交线性偏振方向之间的高反射对比度。这些双折射膜是布拉格镜的组成部分，该布拉格镜已作为（Yb0.1Y0.9）（3）Al5O12陶瓷激光器的输出耦合器经激光二极管端泵配置进行了测试。在波长为1030 nm且偏振消光比高于973（30 dB）的情况下获得了连续波，线性偏振，横向单模激光发射。 （C）2015年美国眼镜学会

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