公开(公告)号：US09971000B2

公开(公告)日：2018-05-15

申请号：US14387256

申请日：2013-03-23

Applicant: UNIVERSITAT BASEL

Inventor： Pascal Bohi ,  Max F. Riedel ,  Theodor W. Hansch ,  Philipp Treutlein

IPC: G01V3/00 ,  G01R33/32 ,  G01R33/10 ,  G01R33/12 ,  G01R33/48

CPC classification number: G01R33/323 ,  G01R33/10 ,  G01R33/1284 ,  G01R33/48

Abstract: A device for sensing a microwave magnetic field polarization component (B−, Bπ, B+) of a microwave relative to a static magnetic field B0, comprising a preparation means to prepare atomic vapor (10) comprising thermal atoms in a first hyperfine state, particularly a dark state to applied laser light, which first hyperfine state is split from other hyperfine state due to zero-field hyperfine splitting and/or due to a static magnetic field (B0) generated by preparation means, at least one cell enclosing the thermal atoms (10), the microwave is adapted to drive Rabi oscillations of thermal atoms between first hyperfine state and second hyperfine state, Rabi frequency of Rabi oscillations being proportional to magnetic field polarization component (B−, Bπ, B+) of the microwave, and imaging means to capture state image of plurality of atoms representing spatial atomic density distribution (Ne) as a function of the Rabi frequency (Ωi(r)) of Rabi oscillations.

公开(公告)号：US20150048824A1

公开(公告)日：2015-02-19

申请号：US14387256

申请日：2013-03-23

Applicant: UNIVERSITAT BASEL

Inventor： Pascal Bohi ,  Max F. Riedel ,  Theodor W. Hansch ,  Philipp Treutlein

IPC: G01R33/32 ,  G01R33/48

CPC classification number: G01R33/323 ,  G01R33/10 ,  G01R33/1284 ,  G01R33/48

Abstract: The invention relates to a device for sensing a microwave magnetic field polarization component (B−, Bπ, B+,) of a microwave relative to a static magnetic field B0, comprising: a preparation means being designed to prepare an atomic vapor (10) comprising a plurality of thermal atoms in a first hyperfine state, particularly a dark state to applied laser light, which first hyperfine state is split from at least one other hyperfine state due to the zero-field hyperfine splitting and/or due to a static magnetic field (B0) generated by said preparation means, at least one cell (1) enclosing said plurality of thermal atoms (10), wherein said microwave is adapted to drive Rabi oscillations of said plurality of thermal atoms between said first hyperfine state and a second hyperfine state, the Rabi frequency of said Rabi oscillations being proportional to said magnetic field polarization component (B−, Bπ, B+) of said microwave, and an imaging means being designed to capture a state image of said plurality of atoms representing the spatial atomic density distribution (Ne) being a function of the Rabi frequency (Ωi(r)) of said Rabi oscillations. Further, the invention relates to a method for sensing a microwave field.

Abstract translation: 本发明涉及一种用于感测微波相对于静态磁场B0的微波磁场偏振分量（B-，B＆Pgr，B +））的装置，包括：制备装置，其被设计成制备原子蒸气（10） 包括第一超精细状态的多个热原子，特别是施加激光的暗状态，由于零场超精细分裂和/或由于静态磁场，第一超精细状态从至少一个其他超精细状态分裂 由所述制备装置产生的场（B0），包围所述多个热原子（10）的至少一个电池（1），其中所述微波适于驱动所述多个热原子的Rabi振荡在所述第一超精细状态和第二超精细状态之间 所述超精细状态，所述Rabi振荡的Rabi频率与所述微波的所述磁场偏振分量（B-，B＆Pgr，B +）成比例，并且成像装置被设计成捕获状态 代表所述Rabi振荡的Rabi频率（＆OHgr; i（r））的函数的表示空间原子密度分布（Ne）的所述多个原子的图像。 此外，本发明涉及一种用于感测微波场的方法。