Electric Fields Give Optical Tweezers a Sharper Grip for Nanowire Calligraphy
Chinese Academy of Sciences
Researchers have developed a new method to overcome long-standing challenges in manipulating nanowires--tiny, rod-shaped structures essential for next-generation electronics, quantum devices, and biological sensors. The technique combines holographic optical tweezers with an alternating current (AC) electric field to pre-align nanowires before trapping them. This hybrid approach significantly improves the stability and efficiency of nanowire handling, turning random, hard-to-control motion into