激光技术
激光技術
격광기술
LASER TECHNOLOGY
2014年
5期
688-691
,共4页
激光光学%等离子体%极化激光%辐射阻尼效应%洛伦兹变换%多光子非线性Compton散射
激光光學%等離子體%極化激光%輻射阻尼效應%洛倫玆變換%多光子非線性Compton散射
격광광학%등리자체%겁화격광%복사조니효응%락륜자변환%다광자비선성Compton산사
laser optics%plasma%polarized laser%radiation damping effect%Lorentz transformation%multi-photon nonlinear Compton scattering
为了研究Compton散射对强激光等离子体中辐射阻尼效应的影响，采用多光子非线性Compton散射模型、相对论理论和洛伦兹变换方法，对Compton散射对不同极化激光在等离子体中产生辐射阻尼效应的影响进行了理论分析和数值计算。提出了将Compton散射光作为等离子体产生辐射阻尼效应的新机制，给出了辐射阻尼满足的修正方程。结果表明，Compton散射使等离子体辐射阻尼效应对电子运动产生重要作用的几率增大，这主要是由于产生这种作用所需的入射激光强度降低，从而使电子频率增大、电场耦合频率增大的缘故。多光子非线性Compton散射光是产生和提高等离子体辐射阻尼效应的一个重要机制。
為瞭研究Compton散射對彊激光等離子體中輻射阻尼效應的影響，採用多光子非線性Compton散射模型、相對論理論和洛倫玆變換方法，對Compton散射對不同極化激光在等離子體中產生輻射阻尼效應的影響進行瞭理論分析和數值計算。提齣瞭將Compton散射光作為等離子體產生輻射阻尼效應的新機製，給齣瞭輻射阻尼滿足的脩正方程。結果錶明，Compton散射使等離子體輻射阻尼效應對電子運動產生重要作用的幾率增大，這主要是由于產生這種作用所需的入射激光彊度降低，從而使電子頻率增大、電場耦閤頻率增大的緣故。多光子非線性Compton散射光是產生和提高等離子體輻射阻尼效應的一箇重要機製。
위료연구Compton산사대강격광등리자체중복사조니효응적영향，채용다광자비선성Compton산사모형、상대론이론화락륜자변환방법，대Compton산사대불동겁화격광재등리자체중산생복사조니효응적영향진행료이론분석화수치계산。제출료장Compton산사광작위등리자체산생복사조니효응적신궤제，급출료복사조니만족적수정방정。결과표명，Compton산사사등리자체복사조니효응대전자운동산생중요작용적궤솔증대，저주요시유우산생저충작용소수적입사격광강도강저，종이사전자빈솔증대、전장우합빈솔증대적연고。다광자비선성Compton산사광시산생화제고등리자체복사조니효응적일개중요궤제。
In order to study effect of Compton scattering on the radiation damping effects in ultra-intense laser plasma , the effect of plasma induced by different polarized lasers was analyzed and calculated based on the model of multi -photon nonlinear Compton scattering , relativity theory and Lorentz transformation .The new mechanism of the radiation damping effect induced by Compton scattering in plasma was presented and the revised equation on the radiation damping effect was put forward .The results show that the probability of electron movement is increased because the required incident laser intensity is reduced and then the electron frequency and the coupling frequency of the electric field are increased .The multi-photon nonlinear Compton scattering is an important mechanism on taking and increasing the radiation damping effect of plasma.
