Figure 6
From: 3D printed microfluidic lab-on-a-chip device for fiber-based dual beam optical manipulation
Setup of the dual beam optical trap experiment. The laser beam is divided into two beams with equal power and coupled into single mode fibers. The counterpropagating beams exiting the two optical fibers trap the particles and cells in the microfluidic channel. The dual beam optical trap is illuminated with a white light LED from the bottom side and imaged using a 50\(\times\) long working distance objective onto a high speed CCD camera.
