New optical tweezers put on the pressure to change color - EurekAlert

Scientists demonstrate an optical trapping technique using nanotextured black silicon that can efficiently trap polymer chains. By adjusting the laser intensity, these “optical tweezers” can control the florescence color emitted through a local concentration …

image: We propose a novel approach to fluorescence colour control using optical tweezers. We demonstrate an optical trapping technique using nanotextured Si. By increasing the laser intensity, the lo… [+3843 chars]

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