Interchannel optical coupling within arrays of linear microplasmas generated in 25–200μm wide glass channels
Interchannel optical coupling within arrays of linear microplasmas generated in 25–200μm wide glass channels
复制标题
25–200μm 宽玻璃通道中产生的线性微等离子体阵列内的通道间光学耦合
DOI：
10.1063/1.3505498
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发表时间：
2010
影响因子：
4
通讯作者：
J. Eden
中科院分区：
文献类型：
--
作者：
S. Sung;I. Hwang;S. Park;J. Eden
在玻璃微通道中产生了宽度为25 ~ 200 μm、纵横比高达500的轴向均匀微腔等离子体。这些微等离子体被密封在长度为2.5 cm、横截面积为2.5×102-104 μm2的空腔中，在稀有气体压力为200-700 Torr时，在中性粒子温度为365-420 K的异常发光状态下工作。在10个平行微通道等离子体阵列中，观察到通道之间的光学耦合的证据，其形式是原子发射的强烈增强，这是由于散射辐射的共振吸收驱动的电子加热。
Axially uniform microcavity plasmas with widths of 25–200 μm and aspect ratios as high as 500 have been generated in glass microchannels. Sealed in cavities 2.5 cm in length and having a cross-sectional area of 2.5×102–104 μm2, these microplasmas operate in the abnormal glow regime with neutral particle temperatures of 365–420 K when the rare gas pressure is 200–700 Torr. In arrays as large as ten parallel microchannel plasmas, evidence of optical coupling among the channels is observed in the form of strongly enhanced atomic emission which is attributed to electron heating driven by the resonant absorption of scattered radiation.