We demonstrate both theoretically and experimentally that phase gradients in a light field can be used to create a new category of optical traps complementary to the more familiar intensity-gradient traps known as optical tweezers. We further show that the work done by phase-gradient forces is path dependent and briefly discuss some ramifications of this nonconservativity.
|Original language||English (US)|
|Journal||Physical Review Letters|
|State||Published - Jan 8 2008|
ASJC Scopus subject areas
- Physics and Astronomy(all)