Spectral analysis by a video camera in a holographic optical tweezers setup

SŁAWOMIR DROBCZYŃSKI, KAMILA DUŚ-SZACHNIEWICZ, KRZYSZTOF SYMONOWICZ, DARIA GŁOGOCKA

We discuss the basic parameters of the holographic tweezers equipped with a diode laser and cheap video camera. We compare these parameters with the system using a fast camera and high power Nd:YAG laser. The measured parameters are: the power spectra density calculated from tracing the position of the micron polystyrene beads and the trap stiffness. We show that this cheap optical tweezers system is sufficient for experiments in microbiology.

DOI