Photonic crystal templates for organic solid-state lasers
Photonic crystal templates for organic solid-state lasers
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DOI：
10.1063/1.2119428
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发表时间：
2005-10
影响因子：
4
通讯作者：
S. Yokoyama;T. Nakahama;S. Mashiko;M. Nakao;M. Yamada;K. Nishio;H. Masuda
中科院分区：
文献类型：
--
作者：
S. Yokoyama;T. Nakahama;S. Mashiko;M. Nakao;M. Yamada;K. Nishio;H. Masuda
报道了一种由Al_2O_3光子晶体和有机增益介质组成的固体激光器。光子晶体是通过纳米压印技术和电化学工艺制造的，该工艺能够将周期性图案转移到光子晶体并控制其阻带。当光子晶体中渗透有含激光染料的聚合物介质时，我们在光激发下获得了激光发射。最小激光阈值约为2.4nJ闪烁脉冲，激光发射线宽为0.09nm。我们解释了激光器的行动的基础上的带边效应，而精确控制的激光模式和振荡波长取决于控制的阻带和增益介质的折射率的微小变化。
We report a solid-state laser composed of an Al2O3 photonic crystal and an organic gain medium. The photonic crystal was fabricated through the nanoimprinting technique and an electrochemical process, which enables transfer of a periodic pattern to the photonic crystal and control of its stop band. When the photonic crystal was infiltrated with the polymer medium containing laser dye, we obtained laser emission under optical excitation. The minimum laser threshold was about 2.4nJ∕pulse, where the linewidth of the laser emission was as narrow as 0.09 nm. We explain the laser action based on the band edge effect, while the precise control of the laser mode and oscillation wavelength depends on control of the stop band and small changes in the refractive index of the gain medium.