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    • 9. 发明申请
    • A METHOD AND APPARATUS FOR HIGH PRECISION SPECTROSCOPY
    • 高精度光谱学的方法和设备
    • WO2010128513A3
    • 2010-11-11
    • PCT/IL2010/000369
    • 2010-05-06
    • BEN-GURION UNIVERSITY OF THE NEGEV RESEARCH AND DEVELOPMENT AUTHORITYGROSWASSER, David
    • GROSWASSER, David
    • G01N21/17G01N21/23G01N21/21
    • The invention provides spectroscopy apparatuses and methods allowing precise overlapping between circularly polarized pump beam and a counter propagating linearly polarized probe beams in a sample which presents unique advantages for precision spectroscopy. In general, the apparatus comprises a phase retarding element with which by double pass by retro reflection of an incident beam turn linearly polarized light to circular and vice versa. This unique configuration enable to design a compact and miniature apparatus which may be applied for measuring polarization spectroscopy, nonlinear optical rotation and coherent population trapping phenomena with certain advantages resulting from the unique optical arrangement. The design of the apparatus further facilitates integration and scaling to produce arrays of units which may be particularly useful for magnetometry applications. Other important applications of the invention include laser frequency stabilization and atomic clocks.
    • 本发明提供了光谱设备和方法,其允许圆形极化的泵浦光束和样品中的反向传播的线性极化的探测光束之间的精确重叠,这对于精确光谱学具有独特的优点。 通常,该装置包括相位延迟元件,利用该相位延迟元件,通过向后反射入射光束使得线性偏振光转向圆形,反之亦然。 这种独特的配置使得能够设计紧凑和微型设备,该设备可以用于测量极化光谱学,非线性光学旋转和相干群体捕获现象,并由于独特的光学布置而具有某些优点。 该设备的设计进一步便于集成和缩放以产生对于磁力测量应用特别有用的单元阵列。 本发明的其他重要应用包括激光频率稳定和原子钟。