| Novel Atomic Mirror with a Blue—Detuned Semi—Gaussian Beam |
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| 作者姓名： | 郑萍 印建平 等 |
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| 作者单位： | [1]DepartmentofPhysics,SuzhouUniversity,Suzhou215006 [2]KeyLaboratoryforOpticalandMagneticResonanceSpectroscopy,DepartmentofPhysics；DepartmentofPhysics,SuzhouUniversity,Suzhou215006Eas |
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| 摘 要： | A novel and simple atomic mirror composed of a blue-detuned semi-Gaussian beam is proposed.From the Fresnel diffraction theory,the intensity distributions of a collimated Gaussian laser beam diffracted by the straight edge of a semi-infinite opaque plate are studied.The optical potential of the semi-Gaussian beam for 85Rb atoms and its spontaneous emission probability are calculated and compared with the performance of the evanescent-wave mirror.Our study shows that the blue-detuned semi-Gaussian beam,as a novel atomic mirror,can be used to reflect atomic beam efficiently,and under the same beam parameters and lower normal atomic velocity,the performance of the semi-Gaussian-beam mirror is better than that of the evanescent-wave mirror.
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| 关 键 词： | 原子光学 原子镜 半高斯束 |
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