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Development of a fast position-sensitive laser beam detector
Isaac Chavez1, Rongxin Huang, Kevin Henderson
1Center for Nonlinear Dynamics and the Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA. chavez@physics.utexas.edu
Abstract:
We report the development of a fast position-sensitive laser beam detector. The detector uses a fiber-optic bundle that spatially splits the incident beam, followed by a fast balanced photodetector. The detector is applied to the study of Brownian motion of particles on fast time scales with 1 A spatial resolution. Future applications include the study of molecule motors, protein folding, as well as cellular processes.
