Atomic and Nuclear Interference Phenomena in Solids

固体中的原子和核干涉现象

• 批准号: 0555677
• 负责人: Olga Kocharovskaya
• 金额: $ 30万
• 依托单位: Texas A&M Research Foundation
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-09-01 至 2009-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0555677&HistoricalAwards=false
• 关键词: Atomic; Nuclear; Interference; Phenomena; Solids

This experimental research program is focused on extending the field of atomic interference into two important directions: (i) from gaseous to solid media and (ii) from atomic to the nuclear transitions. The specific objectives pursued within the program include working toward the first experimental demonstrations, and associated theoretical studies, of the following phenomena: 1) Electromagnetically induced transparency in the lambda and double lambda schemes and efficient four-wave mixing at room temperature in a solid. 2) Suppression of excited state absorption at the transition from an excited populated energy state to the continuum of states using pumping in the form of a pulse train that provides Electromagnetically Induced Transparency (EIT) for itself. 3) Influence of laser radiation on the time-resolved synchrotron radiation spectra. 4) Effects of laser radiation on the Mossbauer spectra caused by magnetic dipole-dipole interaction of the nuclear and electronic spins. 5) Nuclear interference effects via the coincidence technique. 6) EIT at gamma-ray transitions induced by laser radiation. The broader impact of the program involves student training.

本实验研究计划的重点是将原子干涉领域扩展到两个重要的方向：(i)从气态到固体介质和（ii）从原子到核的跃迁。该计划所追求的具体目标包括对以下现象进行首次实验演示和相关理论研究：1)λ和双λ方案中的电磁感应透明以及室温下固体中有效的四波混频。2)利用脉冲序列形式的泵浦抑制激发态吸收，从激发态填充态过渡到连续态，从而为自身提供电磁感应透明度（EIT）。3)激光辐射对时间分辨同步辐射光谱的影响。4)激光辐射对核与电子自旋磁偶极-偶极相互作用引起的穆斯堡尔谱的影响。5)符合技术的核干涉效应。6)激光辐射诱导γ射线跃迁的EIT。该项目更广泛的影响涉及学生培训。