Characteristics of laser cooled one component plasma

我们研制了半导体激光器系统和环形RF阱约束系统，用于研究离子动能小于相互势能的强耦合等离子体。用窄线宽（<1MHz）的倍频激光二极管（397nm）系统冷却单组分等离子体，用含非线性晶体（LiIO_3）的环形激光器系统产生有效的二次谐波光功率。研究了环形射频阱中单组分等离子体被二极管激光器冷却后的约束特性。

We have developed the diode laser system and the toroidal RF trap confinement system for a study of the strongly coupled plasma in which the kinetic energy of ions is smaller than the mutual potential energy of them. The frequency doubled laser diode system (397nm) with a narrow line width (<1MHz) is made to cool one component plasma.The optical power of efficient second harmonics is generated by using a ring laser system including a nonlinear crystal (LiIO_3). The investigation of the characteristics of the confinement of one component plasma in the toroidal RF trap when they are cooled down by the diode laser is underway.