WAVELENGTH DEPENDENCE OF THE ABSOLUTE NA2+(1(2)SIGMA-U+[-1(2)SIGMA-G+) PHOTODISSOCIATION CROSS-SECTION

被引：5

作者：

KORTYNA, A ^{[1
]}

REISNER, D ^{[1
]}

UNRUH, J ^{[1
]}

HUWEL, L ^{[1
]}

机构：

[1] WESLEYAN UNIV, DEPT PHYS, MIDDLETOWN, CT 06459 USA

来源：

PHYSICAL REVIEW A | 1994年 / 50卷 / 02期

关键词：

D O I：

10.1103/PhysRevA.50.1399

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The absolute photodissociation cross section of the 1 2SIGMA(u)+ <-- 1 2SIGMA(g)+ transition in Na2+ over the wave length range from 480 to 655 nm has been measured using nanosecond pulsed lasers, a molecular beam, and a time-of-flight mass spectrometric detection scheme. We present a detailed discussion of the procedure to extract absolute values of the cross section from the experimental data. The cross section has a maximum of (9+/-1) X 10(-17) cm2 at about 540 nm. Our results agree satisfactorily with previous experimental measurements at 492.2 and 604.0 nm, and also agree in absolute size within a factor of about 2 with theoretical predictions.

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页码：1399 / 1408

页数：10

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