| 1. | We studied the ultraviolet - light - induced absorption ( uv - lia ) coefficient change in the congruent linbo3 crystals doped with mg ( superscript 2 + ) of different concentrations
摘要研究了不同组份掺镁铌酸锂晶体的光致吸收现象。 |
| 2. | So we can say destructive interference of atomic coherence leads to electromagnetically induced absorption , constructive coherence of atomic coherence leads to electromagnetically induced transparency
因此，我们可以确切地说，原子相干对吸收的相长干涉产生电磁诱导吸收，原子相干对吸收的相消干涉导致电磁诱导透明。 |
| 3. | By measuring the ultraviolet - light - induced absorption coefficeint change , we believed that the ultraviolet - light induced absorption changes were ascribed to the generation of the small polarons o ( superscript - ) under the illumination of uv lights
通过对不同组份掺镁铌酸锂晶体紫外光致吸收的动态暗衰减过程的测量，我们认为掺镁铌酸锂晶体中紫外光致吸收的浅能级缺陷中心是o (上标- )小极化子。 |
| 4. | During this process electrons will not only lose energy for self - radiation , but also gain energy from induced absorption . on the basis of analyses , the radiation with low frequency by relativistic electrons will form rayleigh - jeans spectrum in optically thick medium
由等离子体中辐射谱计算公式得到，在光学厚的介质中麦克斯韦分布的极端相对论性电子产生的同步加速辐射谱为瑞利?金斯谱。 |
| 5. | First , we study electromagnetically induced absorption . this significant feature of the system model is that a four - level system in which three - dipole transitions are in n configuration in this system , the middle transition serves as a probe transition and two other transitions serve as couple transitions
系统的模型特征是：三个电偶极跃迁构成n型链的四能级系统，其中，中间跃迁为探测跃迁，两边的跃迁为耦合跃迁。 |
| 6. | Next we consider the effect of the coupling field linewidth to electromagnetically induced absorption , by employing a four - level system in which three transitions are in n configuration and the middle transition serves as a probe transition , we find that coupling field linewidth inhibits electromagnetically induced absorption
硕士学位论文master ’ st } iesis其次，本文研究在裸态下，考虑祸合场线宽对原子相干的作用，进一步揭示了祸合场线宽抑制电磁诱导吸收。这与祸合场线宽增强eit的吸收形成鲜明的对比。 |
| 7. | In this paper we have done two work , one is we , in the dressed states representation , reveal that the constructive interference of atomic coherence on absorption leads to electromagnetically induced absorption , which is in sharp contrast to the case in which destructive interference of atomic coherence gives rise to electromagnetically induced transparency and the other is we reveal that coupling field linewidth inhibits electromagnetically induced absorption , by employing a four - level system in which three transitions are in n configuration and the middle transition serves as a probe transition
本文主要做了两方面的工作：一是在修饰态表象中揭示修饰态原子相干对吸收的相长干涉产生电磁诱导吸收，这与修饰态原子相干对吸收的相消干涉导致电磁诱导透明的情形形成鲜明的对照。二是在裸态中，引入耦合场的线宽，从而发现耦合场的线宽抑制电磁诱导吸收。首先研究电磁诱导吸收。 |
