Figure 9.3 — Optically trapped particle tracked by digital video microscopy

Fig. 9.3 — Optically trapped particle tracked by digital video microscopy
Figure 9.3 — Optically trapped particle tracked by digital video microscopy. (a) Image (16 pixels × 16 pixels) of an optically trapped polystyrene sphere (a = 1.03 μm) and corresponding detected trajectory (solid line), which is completely contained within a single pixel. Detected position along the (b) x- and (c) y-directions (solid lines) and average particle position (dashed lines). The frame rate is 2500 frames/s.