Periodic modulations of optical tweezers near solid-state membranes

Small. 2013 Mar 11;9(5):679-84. doi: 10.1002/smll.201201875. Epub 2012 Nov 6.

Abstract

Optical tweezers operated near solid-state membranes show unexplained periodic modulations in the optical trap position. An experimental study of the oscillations is presented, as well as optical simulations based on the finite-difference time-domain method, providing insight into the underlying interference phenomenon. This work provides a complete description as well as a solution to the enduring problem of modulations in optical traps near solid-state membranes.

Publication types

  • Research Support, Non-U.S. Gov't