Isolated hexaphenyl nanofibers as optical waveguides
Isolated hexaphenyl nanofibers as optical waveguides
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DOI：
10.1063/1.1533845
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发表时间：
2003-01-06
影响因子：
4
通讯作者：
Rubahn, HG
中科院分区：
文献类型：
--
作者：
Balzer, F;Bordo, VG;Rubahn, HG
激光支持的偶极辅助自组装导致蓝光引导纳米结构，即六苯基分子的单晶纳米纤维。纳米纤维长达1 mm，彼此非常好地对齐，并且它们的横截面可以被调谐以跨越在λ = 425.5 nm处从非引导到引导单光学模式的范围。这种有机波导的分析理论可以定量地再现实验观察到的行为。从测量的传播，振动打扮激子的介电函数的虚部孤立的纳米尺度的有机聚集体的阻尼确定。(C)2003年，美国物理学会。
Laser-supported, dipole-assisted self-assembly results in blue-light guiding nanostructures, namely single-crystalline nanofibers of hexaphenyl molecules. The nanofibers are up to 1 mm long, extremely well-aligned to each other and their cross sections can be tuned to span the range from nonguiding to guiding single optical modes at lambda = 425.5 nm. An analytical theory for such organic waveguides can reproduce quantitatively the experimentally observed behavior. From the measured damping of propagating, vibrationally dressed excitons the imaginary part of the dielectric function of isolated nanoscaled organic aggregates is determined. (C) 2003 American Institute of Physics.