In optical tweezers, it can be comprehended that the larger the inclination angle between the condensed laser beam and
the optical axis contributes more to axial trapping force, while the central part of laser beam with smaller inclination
angle contributes more transverse trapping force. Therefore donut-shaped beam is used to improve the problem of lessaxial
trapping for common optical tweezers. Some research reports have shown that the efficiency of a trapping force
can be enhanced by using a donut-shaped beam. In this paper we present the dependence of the axial and the transverse
components of a trapping force on the configuration of a focused donut-shaped beam. The simulation result will provide
a simple and easy guide for optical tweezers users to adjust the configuration of a focused donut-shaped beam for optimal trapping performance.
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.