Several papers about laser tweezers

All published in Optics Express
[1] P. J. Rodrigo, R. L. Eriksen, V. R. Daria, and J. Glueckstad, "Shack-Hartmann multiple-beam optical tweezers," Opt. Express 11, 208-214 (2003)
[2] W. J. Hossack, E. Theofanidou, J. Crain, K. Heggarty, and M. Birch, "High-speed holographic optical tweezers using a ferroelectric liquid crystal microdisplay," Opt. Express 11, 2053-2059 (2003)
[3] X. Xun, X. Chang, and R. W. Cohn, "System for demonstrating arbitrary multi-spot beam steering from spatial light modulators," Opt. Express 12, 260-268 (2004)
[4] R. L. Eriksen, V. R. Daria, and J. Gluckstad, "Fully dynamic multiple-beam optical tweezers," Opt. Express 10, 597-602 (2002)