ThorLabs OTKB optical trapping kit

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Thorlabs optical trapping kit

OTKB construction

Modifications to ThorLabs suggested layout

Alignment procedure

Comparison of OTKB and 20.309 optical trap operating characteristics

Position calibration

The position calibrations determines the sensitivity of the quadrant photodiode detector to changes in position of a bead. Accurate quantitative results depend on precise position calibration.

Methodology

Results

ThorLabs OTKB 20.309
X position TBD X-axis Position Calibration
Y position TBD Y-axis Position Calibration

Trap stiffness