Basic studies on efficient parametric image-upconversion of 10<micrn>m band into the visible.

10微米波段高效参数图像上转换到可见光的基础研究。

• 批准号: 61460139
• 负责人: MISHIMA Teruhito
• 金额: $ 3.26万
• 依托单位: Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1986
• 资助国家: 日本
• 起止时间: 1986 至 1987
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-61460139/
• 关键词: Four wave parametric interaction; Difference frequency generation; Cesium vapor; Cesium vapor cell; Third; order nonlinear susceptibility; Phase matchingTwo photon absorption; 10μm帯の赤外線映像; 非線形光学; 非線形感受率; セシウム; 視野; 不可視映像の可視化

The summerized results are follows.1. The system utilizing cesium vapor as nonlinear medium, level 6d^2D 3/2 as Two-photon resonant level and difference frequency generation as conversion process will be the most efficient. The result indicates that lowering temperature of cesium vapor cell will be possible by several hundreds degree and it suggests the possibility of realizing a cell based on the principle other than heat pipe oven.2. In the above system collinear phase matching can be realized without any buffer gas according to theoretical calculation. Under the phase match condition the acceptance angle of the system is calculated.3. A secium vapor cell made on experimental basis has been tested and found to be safe. However, the cell permitted the leakage of the vapor, so that the second cell is being constructed.4. Two photon absorption which might restrict the efficiency of the system has been estimated.In conclusion, most of the basic studies on efficient parametric imageupconversion of 10<micrn>m band into the visible wavelength range has been accomplished. The experiment of the image upconversion can be performed shortly.

总结结果如下： 1．利用铯蒸气作为非线性介质、能级6d^2D 3/2作为双光子谐振能级以及差频生成作为转换过程的系统将是最有效的。结果表明，铯蒸气电池的温度可以降低数百度，这表明基于热管炉以外的原理实现电池的可能性。 2．根据理论计算，上述系统无需任何缓冲气体即可实现共线相位匹配。计算了相位匹配条件下系统的接受角。 3．在实验基础上制作的铯蒸气电池已经过测试并被证明是安全的。然而，该电池允许蒸​​汽泄漏，因此正在建造第二个电池。 4．估计了可能限制系统效率的两个光子吸收。 总之，10微米波段到可见波长范围的有效参量图像上转换的大部分基础研究已经完成。图像上转换的实验可以很快进行。

项目成果

Kojiro Koyanagi: "Effects of phase matching on efficiency of up-converter by four-wave differnce mixing in Cs vapor" The transactions os the Institute of Electronics, Information and Communication Engineers of Japan. J70-C. 1103-1105 (1987)

Kojiro Koyanagi：“铯蒸气中四波差值混合的相位匹配对上转换器效率的影响” 该交易来自日本电子信息通信工程师协会。

小柳幸次郎: 電子情報通信学会論文誌C. J70-C. 1103-1105 (1987)

小柳小次郎：IEICE Transactions C. J70-C. 1103-1105 (1987)

Kojiro Koyanagi: "Acceptance angles of up-converters by four-wave difference-frequency mixing" The transactions of the Institute of Electronics and Communication Engineers of Japan. J69-C. 1064-1066 (1986)

Kojiro Koyanagi：“四波差频混合的上变频器的接受角” 日本电子与通信工程师协会的交易。

Teruhito Mishima: "Two photon absorption by cesium vapor in parametric upconversion from 10<micrn>m band into the visible wave-length range" The transaction of the Institute of Electronics, Information and Communication Engineers of Japan.

Teruhito Mishima：“从 10 微米波段到可见波长范围的参数上转换中铯蒸气的两个光子吸收” 日本电子、信息和通信工程师协会的交易。

小柳幸次郎: 電子情報通信学会論文誌C.

小柳小次郎：IEICE Transactions C.