Small-signal gain and iodine dissociation in a supersonic chemical oxygen-iodine laser with transonic injection of iodine

被引：10

作者：

Furman, D ^{[1
]}

Bruins, E ^{[1
]}

Barmashenko, BD ^{[1
]}

Rosenwaks, S ^{[1
]}

机构：

[1] Ben Gurion Univ Negev, Dept Phys, IL-84105 Beer Sheva, Israel

来源：

APPLIED PHYSICS LETTERS | 1999年 / 74卷 / 21期

关键词：

D O I：

10.1063/1.124072

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Measurements of the gain and temperature in the resonator of a supersonic chemical oxygen-iodine laser (COIL) with transonic injection of I-2, using diode laser-based diagnostics, are reported. For conditions corresponding to the maximum chemical efficiency of this type of COIL (11.7 mmole/s of chlorine, no primary buffer gas, and 1.36 mmole/s of the secondary N-2), the gain is a nonmonotonous function of the iodine flow rate. Maximum gain of 0.34%/cm is achieved for an iodine flow rate of 0.27 mmole/s. An analytical method is developed which enables the use of these dependencies for calculation of the iodine dissociation fraction F and the number N of O-2((1)Delta) molecules lost in the region of iodine dissociation per I-2 molecule. It is found that F is a nonmonotonous function of the iodine flow rate, its maximum value being small (0.55). (C) 1999 American Institute of Physics. [S0003-6951(99)01821-5].

引用

页码：3093 / 3095

页数：3

共 14 条

[1] MODELING OF MIXING IN CHEMICAL OXYGEN-IODINE LASERS - ANALYTIC AND NUMERICAL-SOLUTIONS AND COMPARISON WITH EXPERIMENTS [J].