论文标题
关于在纳米秒激光场电离氩气电离中的产生
On the Generation of Multiply Charged Argon Ions in Nanosecond Laser Field Ionization of Argon
论文作者
论文摘要
张和同事最近报道了通过532 nm激光光的纳秒长脉冲掺入掺杂溴氟化色的氩簇的实验结果。观察到使用蒸发模型合理化的原子氩离子（电荷状态，n，最多7）和碳（电荷状态最高为4）的乘型离子。爆炸簇是能量离子和电子的祖细胞的区别方面构成了当代研究激光簇相互作用的关键驱动力。因此，重要的是要指出对张和同事模型固有的矛盾之处。鉴于文献中已经有类似的报告，我们表明它们的模型在描述了由气相簇的激光照射引起的速度，多重原子离子的动力学有限的效用。我们认为，是基础群集加热和聚类爆炸动力学的是血浆行为。
Zhang and coworkers have recently reported results of experiments involving irradiation of argon clusters doped with bromofluorene chromophores by nanosecond-long pulses of 532 nm laser light. Multiply-charged ions of atomic argon (charge states, n, up to 7) and carbon (charge states up to 4) are observed which are sought to be rationalised using an evaporation model. The distinguishing facet of exploding clusters being progenitors of energetic ions and electrons constitutes the key driver for contemporary research in laser-cluster interactions; it is, therefore, important to point out inconsistencies that are intrinsic to the model of Zhang and coworkers. In light of similar reports already in the literature, we show that their model is of limited utility in describing the dynamics that govern how fast, multiply-charged atomic ions result from laser irradiation of gas-phase clusters. We posit that it is plasma behaviour that underpins cluster heating and cluster explosion dynamics.
