電離率是脈衝形狀和靜電場對電離率和高次諧波的影響。
摘要,宇宙複合時期,
摘要
採用數值方法研究靜電場和不同的雷射脈衝對氫原子的電離率和高次諧波的影響.結果表明脈衝形狀和電離率之間有著確定的關係,電離率反過來又影響了諧波譜的性質;另外,隨著所加的靜電場強度的增大,電離率呈上升的趨勢,而諧波譜出現一個雙平台的結構.
標籤高次諧波電離率脈衝HighorderharmonicgenerationIonizationLaserpulse
標籤高次諧波電離率脈衝HighorderharmonicgenerationIonizationLaserpulse
Abstract
Westudytheeffectsofpulseshapeandstaticelectricfieldonionizationandhighorderharmonicgeneration(HHG)ofaonedimensionalmodelhydrogenatom.Theseriesofresultsindicatethatthereisacertainrelationshipbetweentheionizationprobabilityandthepulseshape,whichinturninfluencesthecharacterofHHG.Theionizationprobabilityincreasesastheadditionalfieldintensityisincreased.TheHHGspectrumexhibitsadoubleplateastructurewhentheintensityoftheelectricfieldissuitable
Westudytheeffectsofpulseshapeandstaticelectricfieldonionizationandhighorderharmonicgeneration(HHG)ofaonedimensionalmodelhydrogenatom.Theseriesofresultsindicatethatthereisacertainrelationshipbetweentheionizationprobabilityandthepulseshape,whichinturninfluencesthecharacterofHHG.Theionizationprobabilityincreasesastheadditionalfieldintensityisincreased.TheHHGspectrumexhibitsadoubleplateastructurewhentheintensityoftheelectricfieldissuitable
宇宙複合時期
在各種宇宙學模型中,複合時期的電離率是計算物質與輻射密度擾動演化、特別是宇宙微波背景輻射各向異性值的基本數據之一.對於純重子宇宙,複合時期的電離率x≡ne/n(n2e是自由電子的數密度,n是氫原子加自由質子的數密度)的演化結果早已由Peebles給出.