@article{PATENT,
      recid = {8593},
      title = {Aberration correction of optical traps},
      number = {PATENT},
      month = {Dec},
      year = {2008},
      abstract = {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.},
      url = {http://knowledge.uchicago.edu/record/8593},
}