Epitaxial electro‐optic mixed‐crystal (NH4)xK1−xH2PO4 film waveguide
Epitaxial electro‐optic mixed‐crystal (NH4)xK1−xH2PO4 film waveguide
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外延电光混晶(NH4)xK1−xH2PO4薄膜波导
DOI：
10.1063/1.1654335
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发表时间：
1972
影响因子：
4
通讯作者：
V. Ramaswamy
中科院分区：
文献类型：
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作者：
V. Ramaswamy
报道了在 (100) KDP 衬底上生长的外延混合晶体薄膜 (NH4)xK1−xH2PO4 中光学引导的观察。薄膜厚度约为38μ。 x=0.07时，该薄膜在589.3 nm处的寻常指数和非常指数为nfo=1.5105和nfe=1.4695。薄膜和基底之间的相应指数之差为10−3。当薄膜波导被高斯氦氖激光束激发时，晶体输出面上的能量分布证实了外延薄膜中的一维引导。
Observation of optical guidance in an epitaxial mixed‐crystal film (NH4)xK1−xH2PO4 grown on a (100) KDP substrate is reported. The film thickness was ∼38 μ. The ordinary and extraordinary indices of the film for x=0.07 at 589.3 nm were nfo=1.5105 and nfe=1.4695. The difference in corresponding indices between the film and the substrate was 10−3. When the film waveguide was excited by a Gaussian He–Ne laser beam, the distribution of energy across the output face of the crystal confirmed one‐dimensional guiding in the epitaxial film.