
Figure (a) is reprinted from Whyte et al., Opt. Express 14, 12 497–502. Copyright (2006) The Optical Society.
Figure (b) is reproduced with permission from McDonald et al., J. Opt. 15, 035708. Copyright (2013) IOP Publishing. Reproduced by permission of IOP Publishing. All rights reserved.
Figure (c) is reprinted from Grieve et al., Opt. Express 17, 3595–602. Copyright (2009) The Optical Society.
Figure (d) is reprinted from Pacoret and Re ́gnier, Rev. Sci. Instrumen. 84, 081301. Copyright (2013) American Institute of Physics.