| 群速失配在二次谐波自相关法中的影响:Ⅰ类及Ⅱ类相位匹配 |
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| 引用本文： | 张帆.群速失配在二次谐波自相关法中的影响:Ⅰ类及Ⅱ类相位匹配[J].光子学报,1998,27(6):485-489. |
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| 作者姓名： | 张帆 |
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| 作者单位： | 中国科学院西安光学精密机械研究所瞬态光学技术国家重点实验室 |
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| 基金项目： | 中国科学院西安光学精密机械研究所所长基金 |
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| 摘 要： | 本文详细讨论了二次谐波自相关法测量超短光脉冲宽度时群速失配对测量的影响,发现群速失配对于干涉自相关法和Ⅱ类相位匹配强度自相关法测量影响显着,而对Ⅰ类相位匹配强度自相关法测量影响很小。
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| 关 键 词： | 二次谐波 群速失配 干涉自相关 强度自相关 |
| 收稿时间： | 1997-12-23 |
EFFECT OF GROUP VELOCITY MISMATCH ON THE AUTOCORRELATION METHOD VIA SECOND HARMONIC GENERATION: TYPE Ⅰ AND TYPE Ⅱ PHASE MATCHIING |
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| Zhang Fan,Ruan Shuangchen.EFFECT OF GROUP VELOCITY MISMATCH ON THE AUTOCORRELATION METHOD VIA SECOND HARMONIC GENERATION: TYPE Ⅰ AND TYPE Ⅱ PHASE MATCHIING[J].Acta Photonica Sinica,1998,27(6):485-489. |
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| Authors: | Zhang Fan Ruan Shuangchen |
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| Institution: | Xi’an Institute of Optics &; Precision Mechanics, Academia Sinica, Xi’an 710068 |
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| Abstract: | The use of second harmonic generation as a technique for ultrashort optic pulse width measurement is analyzed to determine in detail the effect of group velocity mismatch(GVM)between fundamental and second harmonic fields.We find that for interferometric autocorrelation and intensity autocorrelation Type Ⅱ phase matching,GVM has a appreciable effect.While for intensity autocorrelation Type Ⅰ phase matching,the effect is less noticeable. |
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| Keywords: | Group velocity mismatch Second harmonic generation Interferometric autocorrelation Intensity autocorrelation |
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