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Development of Optically-Driven Metallic Microrotors Using Two-Photon Microfabrication

2013; Volume: 8; Issue: 1 Linguagem: Inglês

10.2961/jlmn.2013.01.0002

1880-0688

Takashi Ikegami,

Orbital Angular Momentum in Optics

We have developed metallized, cross-shaped microrotors driven by scanning a low-power laser beam.The metallized microrotors were fabricated by the combination of two-photon microfabrication, electroless plating and laser ablation.It is demonstrated that a cross-shaped, metallized microrotor can be driven at a laser power of 3 mW.We also analyze the radiation pressure exerted on the blade to investigate the driving mechanism of the metallized micorotor.As a result, it was confirmed that a tilted blade could generate larger torque than a horizontal blade due to the reflection of an incident Gaussian laser beam.Such optically driven metallized micromachines will be useful for low-cost, functional lab-on-a-chip devices.