Developmentof molecular optical modulator based on hollow-core microstructured optical fiber

设计了一种基于空芯光子带隙（HCP）光纤的太赫兹波段分子光调制器，并对其性能进行了评价。将加压氢分子注入新设计的耐压HCP纤维池中，并通过高度重复的超短脉冲激光激发它们的相干分子运动。利用连续激光探测分子的相干运动，验证了该方案用于分子光调制的可行性。结果发现，更长的光纤长度是必要的分子和激光束之间的有效相互作用的HCP光纤。

A molecular optical modulator operating at a frequency in the terahertz region based on a hollow-core photonic band gap (HCP) fiber was designed and its performance was evaluated. Pressurized hydrogen molecules were injected in the newly designed pressure-resistant HCP fiber cell and coherent molecular motions of them were excited by a highly repetitive ultrashort-pulse laser. The feasibility of molecular optical modulation by this scheme was evaluated by probing the coherent molecular motion using a continuous-wave laser. It is found that a longer fiber length is necessary for efficient interaction between molecules and a laser beam in the HCP fiber.