参数
| 属性 | 数值 |
| 化学式 | TeO2 |
| 摩尔质量 | 159.60 g/mol |
| 颜色 | 无色 |
| 密度 | 5.99 ± 0.03 /cm3 |
| 熔点 | 733°C |
| 硬度 | 3-4莫氏硬度计 |
| 热膨胀 | 10-6 К-1: α11 = 17.7; α22 = 17.7; α33 = 5.5 |
| 对称性 | 四方晶系, 422 (D4) |
| 晶格距离 | a = 4.8122 Å; c = 7.6157 Å |
| 透过率 | >70% at 633nm |
| 发射范围 | 0.33 ~ 5.0 微米 |
| λ, μm | no | ne | Δn = ne – no |
| 0.4047 | 2.4315 | 2.6167 | 0.1852 |
| 0.4358 | 2.3834 | 2.5583 | 0.1749 |
| 0.4678 | 2.3478 | 2.5164 | 0.1686 |
| 0.48 | 2.3366 | 2.5036 | 0.167 |
| 0.5086 | 2.315 | 2.4779 | 0.1629 |
| 0.5461 | 2.2931 | 2.452 | 0.1589 |
| 0.5893 | 2.2738 | 2.4295 | 0.1557 |
| 0.6328 | 2.2597 | 2.4119 | 0.1522 |
| 0.6438 | 2.2562 | 2.4086 | 0.1524 |
| 0.69 | 2.245 | 2.3955 | 0.1505 |
| 0.8 | 2.226 | 2.373 | 0.147 |
| 1 | 2.208 | 2.352 | 0.144 |
| λ, μm | p, deg/mm | λ, μm | p, deg/mm |
| 0.3698 | 587.1 | 0.5893 | 104.9 |
| 0.3783 | 520.6 | 0.6328 | 86.9 |
| 0.3917 | 437.4 | 0.7 | 67.4 |
| 0.4152 | 337.6 | 0.8 | 48.5 |
| 0.4382 | 271 | 0.9 | 37.4 |
| 0.463 | 221.1 | 1 | 29.5 |
| 0.4995 | 171.2 | 1.1 | 23.8 |
| 0.53 | 143.4 |
| Nsound | Usound | Vsound 103 м/с | Nlight | Elight | M1 10-7сm2 · с/г | M2 10-18 с3/г |
| [100] | [100] | 2.98 | [010] | [100] | 0.097 | 0.048 |
| [100] | [100] | – | [010] | [001] | 22.9 | 10.6 |
| [001] | [001] | 4.26 | [010] | [100] | 142 | 34.5 |
| [001] | [001] | – | [010] | [001] | 113 | 25.6 |
| [100] | [010] | 3.04 | [001] | optional | 3.7 | 1.76 |
| [110] | [110] | 4.21 | [-110] | [110] | 323 | 0.802 |
| [110] | [110] | – | [-110] | [001] | 16.2 | 3.77 |
| [101] | [101] | 3.64 | [-101] | [010] | 101 | 33.4 |
| [010] | [010] | 2.98 | [-101] | [101] | 42.6 | 20.4 |
| [110] | [-110] | 0.617 | [001] | optional | 68.6 | 793 |
| [101] | [-101] | 2.08 | [010] | [100] | 76.4 | 77 |
| АОM的主要特点 | TeO2调制器的典型值 |
| 光学波长范围 | 514nm, 633nm, 1064nm, 1330nm |
| 光学孔径 | 0.3 mm – 3 mm |
| 工作模式 | 纵向的, 轴(001) |
| 光上升时间 | 光束直径为9-200 nsec |
| 光束分离（633 nm） | 10-30 mrad |
| 衍射效率 | 70-85 % |
| 调制频率（-3db） | 6-50 MHz |
| АОD的主要特点 | TeO2偏转器的典型值 |
| 光学波长范围 | 540nm-530nm, 630nm-850nm, 700nm-1100nm, 1064nm, 1330nm |
| 光学孔径 | 1 mm – 10 mm |
| 工作模式 | 横波，轴3-15度（110） |
| 中心频率 | 20- 200 MHz |
| 带宽 | 20-100 MHz |
| 衍射效率 | 60-95% |
| 时间光圈 | 1-15 μs |
| 分辨率（T.BW产品） | 200-2000 |
| 光上升时间 | 光束直径为9-200 nsec |
| 偏角 | 10-100 mrad |
| Δ偏转角 | 5-50 mrad |
| 射频输入功率 | 0,1- 2 Wt |
| АОTF的主要特点 | TeO2 AOTFs的典型值 |
| 调谐范围 | 450-750nm, 900-1200nm, 1200-2500nm, 2500-5000nm |
| 带宽 | 0.5 nm – 15 nm |
| 工作模式 | 慢剪切，非共线传播 |
| 角孔 | 2-10 度 |
| 光学孔径 | 3×3 mm – 30×30 mm |
| 衍射效率 | 70-85 % |
| 射频功率 | 1-10 Wt |
案例
TeO2晶体案例用于370nm声光调制
规格：15*14*10mm；
镀膜：同光面上镀膜，双面增透；
AR@370nm, T≥92%;
特点
- 声音衰减小
- 较大的声光品质因数
- 高品质因数
- 出色的声光特性
- 对可见光具有高透明度
- 高折射率
应用
参考文献
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| [16] Stavrakieva D , Ivanova Y , Pyrov J . On the composition of the crystal phases in the PbO TeO2 system[J]. Journal of Materials Science, 1988, 23(5):1871-1876. |
| [17] Yong J K , Choi S W , Kang S Y , et al. Enhancement of the benzene-sensing performance of Si nanowires through the incorporation of TeO2 heterointerfaces and Pd-sensitization[J]. Sensors and Actuators B Chemical, 2017, 244(jun.):1085-1097. |
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