Consoli Antonio, Mariano da Silva Danilo, Wetter Niklaus Ursus, López Cefe
Opt Express. 2015 Nov 16;23(23):29954-63. doi: 10.1364/OE.23.029954.
We report resonant feedback random lasing from dye-doped biopolymer films, consisting of a deoxyribonucleic acid-cetyltrimethylammonium (DNA-CTMA) complex doped with DCM dye. In the proposed devices, the optical feedback for random lasing is given by scattering centers randomly positioned along the edges of the active area. Scattering elements are either titanium dioxide nanoparticles or random defects at the interface between active polymer and air. Different emission spectra are observed, depending on the geometry of the excited area. A single random resonator with dimensions of 2.6 mm x 0.65 mm is fabricated and random emission with resonant feedback is obtained by uniformly pumping the full device.
我们报道了掺杂染料的生物聚合物薄膜产生的共振反馈随机激光，该薄膜由掺杂二氯甲烷（DCM）染料的脱氧核糖核酸-十六烷基三甲基铵（DNA-CTMA）复合物组成。在所提出的器件中，随机激光的光学反馈由沿有源区边缘随机分布的散射中心提供。散射元件要么是二氧化钛纳米颗粒，要么是有源聚合物与空气界面处的随机缺陷。根据激发区域的几何形状观察到不同的发射光谱。制作了一个尺寸为2.6毫米×0.65毫米的单个随机谐振器，并通过均匀泵浦整个器件获得了具有共振反馈的随机发射。
