CAJ | 학술논문

在溶有稀有气体的稀土盐氯化铽水溶液中进行了单泡声致发光光谱的研究.在固定驱动超声频率、不同驱动声压下,观察到了一系列 OH 自由基从第一激发态 A2Σ+到基态 X2Π各振动能级跃迁所产生的谱线,包括波长307 nm 处的(0,0)跃迁谱线,335 nm 处的(0,1)跃迁谱线以及276 nm 处的(1,0)跃迁谱线等.实验结果表明较高的驱动声压有利于276 nm 处谱线的产生,而较低的驱动声压则有利于307与335 nm处谱线的产生.通过定义线状光谱与连续谱的光强比,定量地表征了线状光谱在总光谱中的相对强度,并给出了驱动声压对各跃迁谱线光强比的影响.
재용유희유기체적희토염록화특수용액중진행료단포성치발광광보적연구.재고정구동초성빈솔、불동구동성압하,관찰도료일계렬 OH 자유기종제일격발태 A2Σ+도기태 X2Π각진동능급약천소산생적보선,포괄파장307 nm 처적(0,0)약천보선,335 nm 처적(0,1)약천보선이급276 nm 처적(1,0)약천보선등.실험결과표명교고적구동성압유리우276 nm 처보선적산생,이교저적구동성압칙유리우307여335 nm처보선적산생.통과정의선상광보여련속보적광강비,정량지표정료선상광보재총광보중적상대강도,병급출료구동성압대각약천보선광강비적영향.
@@@@The single-bubble sonoluminescence spectra of the terbium chloride aqueous solutions dissolved with the noble gas Ar are studied in this paper. Under the condition of fixed driving ultrasonic frequency and different sound pressures, a series of line spectra is identified as emissions from the transitions of OH radical vibrational levels from the first excited state A2Σ+to the ground state X2Π, including (0, 0) transition at 307 nm, (0, 1) transition at 335 nm and (1, 0) transition at 276 nm and so on. The experimental results show that higher sound pressure is conducive to the appearance of the line spectrum at 276 nm while lower sound pressure is favorable for the appearance of the line spectra at 307 nm and 335 nm. The relative intensity of the line spectrum in the total spectrum is expressed quantificationally by defining an intensity ratio of the line spectrum to the continuous spectrum. In addition, the effects of the driving sound pressure on the intensity ratios of different line spectra are given.