Vogl Ulrich, Peuntinger Christian, Joly Nicolas Y, Russell Philip St J, Marquardt Christoph, Leuchs Gerd
Opt Express. 2014 Dec 1;22(24):29375-81. doi: 10.1364/OE.22.029375.
We demonstrate high atomic mercury vapor pressure in a kagomé-style hollow-core photonic crystal fiber at room temperature. After a few days of exposure to mercury vapor the fiber is homogeneously filled and the optical depth achieved remains constant. With incoherent optical pumping from the ground state we achieve an optical depth of 114 at the 6(3)P(2) - 6(3)D(3) transition, corresponding to an atomic mercury number density of 6 × 10(10) cm(-3). The use of mercury vapor in quasi one-dimensional confinement may be advantageous compared to chemically more active alkali vapor, while offering strong optical nonlinearities in the ultraviolet region of the optical spectrum.
我们展示了在室温下，一种类 Kagomé 结构的空芯光子晶体光纤中具有高原子汞蒸气压。在暴露于汞蒸气几天后，光纤被均匀填充，并且所达到的光学深度保持恒定。通过从基态进行非相干光泵浦，我们在 6(3)P(2) - 6(3)D(3)跃迁处实现了 114 的光学深度，这对应于 6×10(10) cm(-3)的原子汞数密度。与化学活性更强的碱金属蒸气相比，在准一维限制中使用汞蒸气可能具有优势，同时在光谱的紫外区域提供强光学非线性。
