| Two-photon absorption coefficient dichroism in Ⅱ-Ⅵ semiconductor crystals |
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| 引用本文： | 马 红,马国宏,马洪良,唐星海. Two-photon absorption coefficient dichroism in Ⅱ-Ⅵ semiconductor crystals[J]. 中国物理, 2007, 16(12): 3873-3878. DOI: 10.1088/1009-1963/16/12/054 |
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| 作者姓名： | 马 红 马国宏 马洪良 唐星海 |
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| 作者单位： | (1)Department of Physics, National University of Singapore, Singapore119260; (2)Department of Physics, Shanghai University, Shanghai 200444, China; (3)Instrumental Analysis & Research Center, Shanghai University, Shanghai 200444, China |
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| 基金项目： | Projectsupported by Science and Technology Commission of Shanghai municipal(Grant No~ 06PJ14042), Shanghai Municipal Education Commission (GrantNo~06AZ089), and theShanghai Leading Academic Discipline Program (Grant No~T0104). |
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| 摘 要： | Considering two beams propagate in semiconductor crystal, this paper discusses the polarization dependence of pump beam-induced intensity attenuation ofprobe beam due to two-photon absorption (TPA). Numerical calculationand experimental measurement demonstrate that TPA coefficient ispolarization dependent. For homogeneous materials, probe beamattenuation arises from the imaginary part of diagonal andoff-diagonal components of third-order nonlinear susceptibilities.
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| 关 键 词： | two-photon absorption semiconductor crystals nonlinearsusceptibility hspace*{1.9cm} polarization dependence |
| 文章编号： | 1009-1963/2007/16（12）/3873-06 |
| 收稿时间： | 2007-03-17 |
| 修稿时间： | 2007-04-22 |
Two-photon absorption coefficient dichroism in II--VI semiconductor crystals |
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| Ma Hong,Ma Guo-Hong,Ma Hong-Liang and Tang Sing-Hai. Two-photon absorption coefficient dichroism in II--VI semiconductor crystals[J]. Chinese Physics, 2007, 16(12): 3873-3878. DOI: 10.1088/1009-1963/16/12/054 |
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| Authors: | Ma Hong Ma Guo-Hong Ma Hong-Liang Tang Sing-Hai |
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| Affiliation: | Department of Physics, Shanghai University, Shanghai 200444, China; Instrumental Analysis & Research Center, Shanghai University, Shanghai 200444, China; Department of Physics, National University of Singapore, Singapore 119260 |
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| Abstract: | Considering two beams propagate in semiconductor crystal, this paper discusses thepolarization dependence of pump beam-induced intensity attenuation ofprobe beam due to two-photon absorption (TPA). Numerical calculationand experimental measurement demonstrate that TPA coefficient ispolarization dependent. For homogeneous materials, probe beamattenuation arises from the imaginary part of diagonal andoff-diagonal components of third-order nonlinear susceptibilities. |
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| Keywords: | two-photon absorption semiconductor crystals nonlinearsusceptibility hspace*{1.9cm} polarization dependence |
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