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    • 4. 发明申请
    • Aberration correction of optical traps
    • 光学陷阱的畸变校正
    • US20080316575A1
    • 2008-12-25
    • US12155503
    • 2008-06-05
    • Jennifer E. CurtisBrian A. KossDavid G. GrierKosta LadavacKaren Kasza
    • Jennifer E. CurtisBrian A. KossDavid G. GrierKosta LadavacKaren Kasza
    • G02F1/01G02B5/18G01B9/00
    • G02B21/32
    • A method and system for correcting aberrations in a beam of light including correcting for effects from an undiffracted portion of an input beam. The method and system includes (1) a component for providing a beam of light; (2) a component for applying a diffraction grating pattern to the beam of light to establish an optical gradient to form an optical trap; (3) component for measuring aberration in the beam of light having the applied diffraction grating pattern; (4) component for calculating a phase-shifting diffraction grating encoding the aberration; and (5) component for projecting the phase-shifting diffraction grating in conjunction with the diffraction grating pattern characteristic of the optical trap. The method and system also includes (1) providing an input beam of light; (2) applying a diffractive grating pattern to the input beam of light to establish a diffracted portion, apart from an undiffracted portion, to form at least one optical trap; (3) operating on both the diffracted portion and the undiffracted portion to bring the light to focus out of the focal plane; and (4) operating on the diffracted portion of the input beam of light (the optical trap) to modify focus of the diffracted portion relative to the undiffracted portion to bring the diffracted portion into focus in the focal plane.
    • 一种用于校正光束中的像差的方法和系统,包括校正来自输入光束的未衍射部分的效果。 该方法和系统包括(1)用于提供光束的部件; (2)用于将衍射光栅图案应用于光束以建立光学梯度以形成光阱的部件; (3)用于测量具有施加的衍射光栅图案的光束中的像差的分量; (4)分量,用于计算编码像差的相移衍射光栅; 以及(5)用于将相移衍射光栅与光阱的衍射光栅图案特性相结合的部件。 该方法和系统还包括(1)提供输入光束; (2)将衍射光栅图案施加到所述输入光束以建立远离未衍射部分的衍射部分,以形成至少一个光阱; (3)在衍射部分和未衍射部分上操作以使光聚焦在焦平面之外; 和(4)在输入光束(光阱)的衍射部分上操作,以改变衍射部分相对于未衍射部分的焦点,以使衍射部分在焦平面中聚焦。