PHOTON-ECHO SPECTROSCOPY OF ORGANIC MIXED CRYSTALS
PHOTON-ECHO SPECTROSCOPY OF ORGANIC MIXED CRYSTALS
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DOI：
10.1103/physrevlett.36.1360
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发表时间：
1976-01-01
影响因子：
8.6
通讯作者：
WIERSMA, DA
中科院分区：
文献类型：
--
作者：
AARTSMA, TJ;WIERSMA, DA
我们首次在有机混合晶体中观察到光子回波。用氮激光泵浦的染料激光器激发，在2K时，在联苯中芘的B 2 u 1 ← A g 1电子跃迁中观察到回波。的起源（零声子线）区域的光子回波激发光谱表明，剧烈的变化发生在站点的相干寿命，准非相干（荧光）衰减，是无法区分的。
We report the first observation of photon echoes in an organic mixed crystal. The echo was observed after excitation with a nitrogen-laser-pumped dye laser in the B 2 u 1← A g 1 electronic transition at 3739.9 Å of pyrene in biphenyl at 2 K. The photon-echo excitation spectrum of the origin (zero-phonon line) region shows that drastic variations occur in the coherence lifetime of sites which, qua incoherent (fluorescent) decay, are indistinguishable.