Enhanced particle guiding using supercontinuum radiation
Enhanced particle guiding using supercontinuum radiation
复制标题
使用超连续谱辐射增强粒子引导
作者：
P. Fischer;A. Carruthers;K. Volke;E. Wright;H. Little;Christian T. A. Brown;W. Sibbett;K. Dholakia
我们证明了使用超连续谱辐射，以提供增强的微观粒子的引导距离相比，标准的连续波或飞秒激光。我们的技术依赖于用于形成细长聚焦区域的透镜的色差，在该细长聚焦区域内发生引导。所得到的光束轮廓已经被建模，并且示出了对于高斯输入光束，透镜之后的强度轮廓可以被认为是高斯的总和，每个波长一个高斯，但是由于色散而具有变化的焦点位置。我们的实验研究比较了连续波（带宽<1nm）和飞秒脉冲（带宽> 100nm）激光的辐射以及超连续谱辐射（带宽> 450nm），并与理论吻合得很好。
We demonstrate the use of supercontinuum radiation to provide enhanced guiding distances of microscopic particles compared to the standard continuous wave or femtosecond lasers. Our technique relies on the chromatic aberration of the lens used to form an elongated focal region within which guiding takes place. The resulting beam profile has been modelled and shows that for a Gaussian input beam, the intensity profile after the lens can be considered as a sum of Gaussians, one for each wavelength but with varying focal position due to dispersion. Our experimental investigations compare radiation from continuous wave (bandwidth <1nm) and femtosecond pulsed (bandwidth > 100nm) lasers as well as supercontinuum radiation (bandwidth > 450nm) and show good agreement with theory.
使用超连续谱光源增强胶体颗粒的光学引导。
影响因子：
3.8
作者：
Fischer P
通讯作者：
Fischer P