By time-multiplexing (scanning) an optical trap, one can generate various optical potential landscapes along the scan direction. Interferometric position detection with 10 nm precision and at kHz rates, allows measuring the interaction of diffusing particles.
© 2005 Optical Society of America
D. Neumayer, P. Kaiser, E. Stelzer, and A. Rohrbach, "Interferometric Tracking of Two Particles with Dynamic Optical Traps," in Photon Migration and Diffuse-Light Imaging II, K. Licha and R. Cubeddu, eds., Vol. 5859 of Proc. SPIE (Optical Society of America, 2005), paper SuC6.
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