Manuscript ID:  250901    
Type: research article
Title:  ‘Lissajous-like’ trajectories in optical tweezers
Author:  Rebecca Hay

Work supported by

EPSRC
grant number:  EP/I007822/
internal project code: 164332-0

Data

The data is in 5 columns.  The first column is time, which does not start at zero.  The second and third columns are the probe bead’s position in x and y respectively.  The fourth and fifth columns are the actuator bead’s position in x and y respectively.  Time is measured in microseconds.  Position is in pixels.
These are named by the ratio of the actuator movement of y to x.  For example, ‘particle_track 0 copy.txt’ has no y actuator movement, and for ‘particle_track1 copy.txt’ the distance that the actuator moved in y was the same as the distance travelled in x.

Figures

Figures 6a and 7a are produced using firstly the ‘just cuts.vi’ Labview program to find one cycle of the trajectory and then the ‘Trajectories.m’ matlab program.

Using firstly the ‘Process lissajous data Final_probability2.vi’ Labview program, followed by ‘plot_lissajous_drift.m’ Matlab program, produces figures 6b-6d and 7b-7g.