Trapping of a few microscopic dielectric beads with at single optical tweezer is a commonly encountered phenomenon in optical trapping experiments. The confinement of tens of such beads using a single optical trap has not been reported. Here we present experimental results of optical confinement of up to 37 2.5-µm-diameter silica beads using a NIR gaussian laser and a 100x microscope objective with numerical aperture of 1.25, on an inverted configuration. The position of the beam wait along the vertical axis is a crucial parameter for the success of this multiple trapping.

© 2015 Optical Society of America

PDF Article


You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access OSA Member Subscription