Here we create a holographic trap that allows trapping with scalar Gaussian and vortex beams, as well as vectorial combinations of the two. When equally weighted, the resultant is a propagation invariant flat-top beam trap. The set-up includes a spatial light modulator in an interferometer to combine the beams, an inverted microscope for imaging, and a photon counting fluorescence detection stage. We outline the functionality of this system, measure the trap stiffness for some example beams, and show in-situ fluorescence measurement from quantum dots attached to micro-scale beads.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.