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中国物理学会期刊

CF自由基二光子共振增强多光子电离研究:5p Rydberg态观测与分析

CSTR: 32037.14.aps.48.446

STUDY ON THE TWO-PHOTON RESONACE-ENHANCED MULTIPHOTON IONIZATION OF CF RADICALS: DETERMINATION AND ANALYSIS OF 5p RYDBERG STATE

CSTR: 32037.14.aps.48.446
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  • 报道260—360nm波长范围内CF自由基(2+1)共振增强多光子电离(REMPI)激发谱的研究-CF自由基通过Ar/CF4,Ar/CF2Cl2或Ar/CF3COOH混合气体的直流脉冲放电产生-在260—295nm波长范围内,观测到一个新的高Rydbery态振动序列,其带源位于295-22nm(2hν=67746cm-1),分析表明,该振动序列来源于5p Rydberg态的二光子共振激发,测得的振

     

    In this paper,(2+1) resonance-enhanced multiphoton ionization(REMPI) spectra of CF radical between 260—360nm have been investigated- CF radicals were produced by a pulsed dc discharge in the mixtures of Ar/CF4,Ar/CF2Cl2 or Ar/CF3COOH-A new vibrational progression of 5p Rydberg state with band origin of 67746cm-1 were observed between 260—305nm-The vibrational frequency ω′=1848cm-1,inharmonic constant ωe χe′=18-5cm-1 and the quantum defect δ=0-625 have been determined by the assigned REMPI spectra- Furthermore,the (2+1)REMPI spectra of CF radical between 310—360nm,were also observed and assigned as 3p(v′=2—6) resonant excitation- The related spectroscopic constants have been derived-

     

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