Joseph Junio's Research Interest
We present a novel method, the optical bottle, that uses a focused laser beam to trap and analyze optically confined multiple nanoparticles.
By using optical forces to compress and confine nanoparticles, we have developed a non-invasive method to study nanoparticle behavior in situ.
Moreover, with proper calibration of the optical forces, the optical bottle can be used to quantify nanoparticle interactions arising from charges or added depletants. The optical design of the system can also be incorporated into different imaging platforms as to provide a three-dimensional mapping of the particles in the trap.
