Voting has closed on the Laser Smackdown poll, with 772 people recording their opinion on the most amazing of the many things that have been done with lasers in the fifty years since the invention of the first working laser (see the Laserfest web site for more on the history and applications of lasers). The […]
Tag: laser trapping
Reminder: Vote for the Most Amazing Laser Application of All Time
As of 1:45 Monday, 217 people have cast votes in the Laser Smackdown poll. That’s not bad, but it’s currently being handily beaten by the 271 people who have voted for a favorite system of units. The nice thing about using actual poll services for this sort of thing, though, is that I can re-post […]
Amazing Laser Application 4: Optical Tweezers!
What’s the application? Optical tweezers use focused light beams to trap small particles in the focus of the beam, and drag them around by moving the beam. What problem(s) is it the solution to? 1) “How do we move these tiny little things around without touching them?” 2) “How do we measure the forces exerted […]