| 用光子回波技术测量物质的横向弛豫时间 |
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| 引用本文： | 符昌海,邓锐利.用光子回波技术测量物质的横向弛豫时间[J].激光技术,1992,16(2):99-104. |
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| 作者姓名： | 符昌海 邓锐利 |
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| 作者单位： | 1.中山大学激光与光谱学研究所 广州 |
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| 摘 要： | 本文采用密度矩阵法推导光子回波讯号强度与激光光脉冲相对延迟的一般关系,得出二脉冲、三脉冲光子回波强度随时延的变化公式。实验上,用可调谐染料激光器作为光源,分别采用二脉冲、三脉冲光子回波技术,测得室温常压下饱和碘蒸气的横向弛豫时间T2约为140ps。
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| 关 键 词： | 光子回波 测量 分子 横向 弛豫时间 |
| 收稿时间： | 1991-06-10 |
| 修稿时间： | 1991-07-29 |
Measurement of the transverse relaxation time of material by photon echo techniques |
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| Abstract: | The relation between the intensity of photon echo signal and the optical delay time is derived by using the density matrix method. The application to two pulse and three pulse photon echo techniques is given. The transverse relaxation time of saturated iodine gas under regular temperature and pressure is measured experimentally by the two and three pulse photon ehco techniques, and the measurement result is about 140 ps. |
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