强激光与粒子束2013，Vol.25Issue(3)：762-766,5.DOI:10.3788/HPLPB20132503.0762
纳秒光场下原子团簇产生高离化Kr离子的激光波长效应
Laser-wavelength effect of production of multicharged krypton ions in intense nanosecond laser ionization of krypton clusters
摘要
Abstract
The photoionization of krypton atomic clusters by 25 ns laser pulses with wavelengths of 266, 355, 532 and 1064 nra was studied using time-of-flight mass spectrometry at intensities of 10'·10n W ·cm~2. The distinguished highest charge of the multi-charged ions is +2,+4,+ 11 and +17, while the lasers with the above wavelengths illuminate the Kr atomic clusters in turn. It is indicated that the charge states of Kr ions significantly depend on laser wavelength, rather than depend on laser intensity. The results further support the three stage model of multiphoton ionization inverse bremsstrahlung heating and electron impact ionization.关键词
Kr原子团簇/库仑爆炸/高价离子/波长效应Key words
krypton clusters/ Coulomb explosion/ multicharged ions/ wavelength effect分类
化学化工引用本文复制引用
罗晓琳,王峰,薛模根,韩裕生,葛传文,张瑾,赵瑞娟..纳秒光场下原子团簇产生高离化Kr离子的激光波长效应[J].强激光与粒子束,2013,25(3):762-766,5.基金项目
国家自然科学基金项目(40876095,41176158) （40876095,41176158）
安徽省自然科学基金项目(11040606M40) （11040606M40）
