CAJ | 학술논문

根据国内外近30年来在一氧化碳激光器领域内的研究成果,从理论和实验两个方面论述若使第一泛频(△υA=2)一氧化碳激光器在3.O～4.2μm波段成功运转,并能提供一定的输出能量,则必须对激光增益介质进行有效低温冷却的原因,并指出其长波端的极限值.理论上分析了一氧化碳分子电子基态X~1∑~+中,高振动激发态的粒子布居数和小信号增益系数对激光放电等离子体温度的强烈依赖关系;分析了一氧化碳分子的能级结构,在常规的稳态动力学模型中引入了X~1∑~+→A~1Ⅱ传能项,该传能项限定了第一泛频一氧化碳激光的长波端极限.理论分析和计算与国外同行的实验结果相吻合.
근거국내외근30년래재일양화탄격광기영역내적연구성과,종이론화실험량개방면논술약사제일범빈(△υA=2)일양화탄격광기재3.O～4.2μm파단성공운전,병능제공일정적수출능량,칙필수대격광증익개질진행유효저온냉각적원인,병지출기장파단적겁한치.이론상분석료일양화탄분자전자기태X~1∑~+중,고진동격발태적입자포거수화소신호증익계수대격광방전등리자체온도적강렬의뢰관계;분석료일양화탄분자적능급결구,재상규적은태동역학모형중인입료X~1∑~+→A~1Ⅱ전능항,해전능항한정료제일범빈일양화탄격광적장파단겁한.이론분석화계산여국외동행적실험결과상문합.
According to the achievements in the laser research field at home and abroad in the last 30 years based on both theoretical amlysis and experimental results,the reason of cooling the first overtone (△υ=2) CO-laser gain plasma to get laser output with enough power in the wavelength ranging from 3.0 to 4.2 μm is pointed out,which is the limit of long wavelength end of the first overtone CO-laser.The high excited vibrational state population and small signal gain factor of CO electronic ground state X~1∑~+ are strongly dependent on laser plasma temperature.Based on theoretical analysis of CO energy level structure,an energy transfer term X~∑~+→ A~1 II is introduced in the normal kinetic modeling of CO-laser.This energy term limits long wavelength end.The results of theoredcal analysis and calculations are consistent with other experimental ones.