Lasing in organic mixed-crystal thin films with cavities composed of naturally formed cracks
Lasing in organic mixed-crystal thin films with cavities composed of naturally formed cracks
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DOI：
10.1364/ol.42.001528
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发表时间：
2017-04-15
期刊：
影响因子：
3.6
通讯作者：
Aoki-Matsumoto, Tamao
中科院分区：
文献类型：
--
作者：
Mantoku, Masaaki;Ichida, Masao;Aoki-Matsumoto, Tamao
本研究探讨了在样品制备过程中自然形成的裂纹对作为激光腔的可能性。本文报道了在没有人工腔结构的芴和蒽混晶薄膜中产生纵模激光。在目前的研究中，它表明，只有当一个激励点覆盖平行的裂纹对激光观察。几个裂纹对的受激发射谱的纵模间隔被发现是成正比的裂纹间距的倒数。此外，人工制作的金属腔的间隔遵循相同的线性关系。这些结果表明，裂纹对可以作为激光腔。(C)2017美国光学学会
This study investigates the possibility that a crack pair that is naturally formed in the course of sample preparation functions as a laser cavity. Lasing with longitudinal mode structures has been reported in mixed-crystal thin films composed of fluorene and anthracene without artificial cavity structure. In the present study, it was shown that lasing is observed only when an excitation spot covers parallel pairs of cracks. The longitudinal mode intervals of the stimulated emission spectra for several crack pairs were found to be proportional to the inverse of the crack spacing. Furthermore, the interval for the artificially fabricated metal cavity followed the same linear relation. These results indicate that the crack pairs can function as laser cavities. (C) 2017 Optical Society of America