新疆大学学报（自然科学版）
新疆大學學報（自然科學版）
신강대학학보（자연과학판）
XINJIANG UNIVERSITY JOURNAL(NATURAL SCIENCE EDITION)
2014年
3期
312-315
,共4页
穆保霞%崔秀花%郭国生%张辽辽
穆保霞%崔秀花%郭國生%張遼遼
목보하%최수화%곽국생%장료료
激光光谱%碰撞能量转移%泵浦-探测技术%KH-CO2
激光光譜%踫撞能量轉移%泵浦-探測技術%KH-CO2
격광광보%팽당능량전이%빙포-탐측기술%KH-CO2
laser-spectroscopy%energy transfer%pump-probe technique%KH-CO2
在K-H2和CO2的混合系统中，利用404 nm脉冲激光器激发K原子至K(5P)态后其与H2发生反应，产生KH(X1Σ+,V 00=0-3)分子。采用泵浦-探测技术，利用OPO脉冲激光器作为“泵浦”激光，泛频激发X1Σ+(V 00=0)至高位振动态(V 00=14-21)，钛宝石激光器作为探测激光激发KH(X1Σ+)至激发态KH(A1Σ+)，在与激光束垂直方向测量A1Σ+(V 0)→X1Σ+(V 00)的激光感生荧光光谱(LIF)，得到KH(V 00)与CO2碰撞的猝灭速率系数，得出猝灭速率系数与KH振动量子数V 00有关系。
在K-H2和CO2的混閤繫統中，利用404 nm脈遲激光器激髮K原子至K(5P)態後其與H2髮生反應，產生KH(X1Σ+,V 00=0-3)分子。採用泵浦-探測技術，利用OPO脈遲激光器作為“泵浦”激光，汎頻激髮X1Σ+(V 00=0)至高位振動態(V 00=14-21)，鈦寶石激光器作為探測激光激髮KH(X1Σ+)至激髮態KH(A1Σ+)，在與激光束垂直方嚮測量A1Σ+(V 0)→X1Σ+(V 00)的激光感生熒光光譜(LIF)，得到KH(V 00)與CO2踫撞的猝滅速率繫數，得齣猝滅速率繫數與KH振動量子數V 00有關繫。
재K-H2화CO2적혼합계통중，이용404 nm맥충격광기격발K원자지K(5P)태후기여H2발생반응，산생KH(X1Σ+,V 00=0-3)분자。채용빙포-탐측기술，이용OPO맥충격광기작위“빙포”격광，범빈격발X1Σ+(V 00=0)지고위진동태(V 00=14-21)，태보석격광기작위탐측격광격발KH(X1Σ+)지격발태KH(A1Σ+)，재여격광속수직방향측량A1Σ+(V 0)→X1Σ+(V 00)적격광감생형광광보(LIF)，득도KH(V 00)여CO2팽당적졸멸속솔계수，득출졸멸속솔계수여KH진동양자수V 00유관계。
With K-H2 and CO2 mixture,a dye laser was tuned to 404 nm for excitation of K (5P) state. KH(X1Σ+, V 00=0-3) were formed by K(5P)+H2 reaction. OPO laser (pump laser) was used to excite KH from X1Σ+(V 00=0) to X1Σ+(V 00=14-21) states. A CW Ti-sapphire laser was used as a probe to further excite the (X1Σ+) states to the (A1Σ+) state. LIF of A1Σ+(V 0)→X1Σ+(V 00) transition was detected at right angles to the laser by a detector. Vibrational state total relaxation rate coefficients for KH(V 00=14-21) were measured by using an overtone pump-probe configuration and LIF spectrum. The rate coefficient is strongly dependent on vibrational quantum number.
