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新型复合功能晶体Nd:YCOB的非线性光学研究

Research on non-linear optical of new-type multifunctional Nd:YCOB crystal
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摘要 系统地计算了Nd:YCOB晶体对于1 064 nm的倍频(SHG)、1 061 nm的自倍频(SFD)和808 nm与1 061 nm的自和频(SSFM)时的最佳相位匹配方向和相关非线性系数,结果显示YCOB对1 064 nm的SHG、THGⅠ类相位匹配下的最佳方向不在主平面而是分别位于(θ=66.5°,Φ=143.5°)、(θ=108°,Φ=76.18°)或等价方向(θ=72°,Φ=103.9°),deff分别为0.561 pm/V、deff=0.431 7 pm/V,Ⅱ类条件下的SHG最佳匹配方向为(θ=86°,Φ=73.6°),deff为0.217 pm/V;对Nd:YCOB的1 061 nm的SFD和SSFMⅠ类条件下的相位匹配方向分别位于(θ=66,°Φ=143.3°)和(θ=64,°Φ=133.9°),相应的有效非线性光学系数deff分别为1.004 pm/V和0.894 8 pm/V. NLO properties and phase-matching angle of YCOB and Nd:YCOB crystals are studied.The effective nonlinear optical coefficients for SHG(type-Ⅰ),SHG(type-Ⅱ) and THG(type-Ⅰ) at 1 064 nm,SFD(type-Ⅰ) at 1 061 nm and SSFM(type-Ⅰ) at 808 nm + 1 061 nm on different phase-matching directions are discussed.Calculation results show that the best optimum type-Ⅰphase-matching directions are located in the directions(θ=66.5°,Ф=143.5°),(θ=86°,Ф=73.6°),((θ=72°),Ф=103.9°),(θ=66°,Ф=143.3°) and(θ=66°,Ф=133.9°),respectively.The...
作者 王如刚 陈振强 胡国永
机构地区 暨南大学光电工程研究所
出处 《暨南大学学报（自然科学与医学版）》 CAS CSCD 北大核心 2006年第3期386-392,共7页 Journal of Jinan University(Natural Science & Medicine Edition)
基金 广东省科技计划项目(2003C103017)基金 广州市科技攻关项目资助
关键词 相位匹配 非线性光学 Nd:YCOB晶体 phase matching non-linear optical properties Nd:YCa_4O（BO_3）_3 crystal
分类号 O437 [机械工程—光学工程]
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参考文献17

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二级参考文献26

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暨南大学学报（自然科学与医学版）
2006年 第3期

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