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3篇 您的检索式:作者名="Yongjoo Rhee"
    题名 作者 年代 出处 被引量
1Laser-driven plasma collider for nuclear studies显示文摘A novel method of initiating nuclear fusion reactions in a full plasma environment was suggested, and a proof-of-concept experiment was carried out with the D t D ! n t3 He reaction. In this new approach, two plasma jets generated by high-intensity lasers collide headon-head. The center-of-mass energy of the nuclei increases accordingly, and therefore, reaction products can be significantly enhanced, especially in the sub-Coulomb barrier ranges. As a result of the fusion reaction, up to 7:6 105 neutrons had been observed. This new type of ‘‘plasma collider'' could provide an innovative tool to study nuclear reactions under astrophysical conditions.Changbo Fu Jie Bao Liming Chen Jianjun He Long Hou Liang Li Yanfei Li Yutong Li Guoqian Liao Yongjoo Rhee Yang Sun Shiwei Xu Dawei Yuan Xiaopeng Zhang Gang Zhao Jiarui Zhao Baojun Zhu Jianqiang Zhu Jie Zhang 2015Science Bulletin2015,60,13:2
2双光子过程中的跃迁截面显示文摘重新检验了双光子过程中跃迁截面的概念:当密度矩阵中对角元随时间的变化缓慢时,速率方程和相关的跃迁截面是很好的近似。导出速率系数的表达式:在强光场中描述单光子过程中的系数要作很大的修改,而描述双光子过程的系数可从单光子过程的系数导出。激光场的功率分配的最佳化随总功率的强度而激烈变化。当有多个能级或多个激光模式的干涉效应时,利用跃迁截面的计算比直接利用布洛赫方程的计算还要复杂。林福成 Jonghoon Yi Yongjoo Rhee Jongmin Lee 1998光学学报1998,18,8:1
3Raman Scattering in Coherently Prepared Atomic System显示文摘Atoms in the coherent superposition state prepared by a pulse pair are used as a novel optical memory material where a single interrogation pulse will produce a new pulse pair preserving the relative amplitudes and phases of the preparing pulse pair. Such a coherent superposition state can also be specially tailored along the propagation path to generate Raman scattering in a relatively short distance with very high efficiency.林福成 Joogmin Lee Yongjoo Rhee Jonghoon Yi Hyunmin Park 2001Chinese Physics Letters2001,18,11:0
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