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Water-filled chamber containing an optically trapped silica sphere (right) and a 100 micron sphere (left). The small sphere is directed towards the large sphere boundary to study diffusion in the presence of a wall. |
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Water-filled chamber containing an optically trapped silica sphere (right) and a 100 micron sphere (left). The small sphere is directed towards the large sphere boundary to study diffusion in the presence of a wall. |