| Negative Dispersion Mirrors in Ta2O5／SiO2 for Femtosecond Ti：Sapphire Lasers by Using Gires-Tournois Interferometers |
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| 引用本文： | 廖春艳,吴祖斌,范正修,邵建达,王专,张志刚.Negative Dispersion Mirrors in Ta2O5／SiO2 for Femtosecond Ti：Sapphire Lasers by Using Gires-Tournois Interferometers[J].中国物理快报,2005,22(6):1443-1445. |
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| 作者姓名： | 廖春艳 吴祖斌 范正修 邵建达 王专 张志刚 |
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| 作者单位： | [1]ShanghaiInstituteofOpticsandFineMechanics,ChineseAcademyofSciences,Shanghai201800／／GraduateSchooloftheChineseAcademyofSciences,Beijing100039 [2]UltrafastLaserLaboratory,TianjinUniversity,Tianjin300072 [3]ShanghaiInstituteofOpticsandFineMechanics,ChineseAcademyofSciences,Shanghai201800 |
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| 摘 要： | We design and experimentally demonstrate some negative dispersion mirrors with optimized Gires-Zournois interferometers. The mirror structure is composed of 38 alternating Ta2 O5 and SiO2 layers and could be regarded as two sections: high-reflectivity section consisting of a series of quarter-wavelength optical thickness stacks and negative-dispersion section consisting of only 13 layers. The designed mirrors exhibit the expected performance.These mirrors were fabricated by using ion beam sputtering. By adopting such mirrors, dispersion of a modelocked femtosecond Ti:sapphire laser has been compensated for mostly. With two series of the mirrors, 32 fs and 15 fs pulses have been obtained respectively.
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| 关 键 词： | 负分散镜 二氧化硅 五氧化二钽 费秒兰宝石激光器 光学干涉仪 |
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