研究目的
Investigating the efficiency of optical micro-turbines in generating torque through precise rerouting of light in 3D structures.
研究成果
The design maximizes the practically achievable reaction torque and can be of the same order of magnitude of the ideal maximum value. Using modern 3D microfabrication techniques will allow design of complex objects that will make optical micromanipulation more efficient and versatile.
研究不足
The most challenging aspect of the work was dealing with guiding light through the complex and sharply bent sections (curvature radii ~10 μ m).
1：Experimental Design and Method Selection:
The team designed a complex 3D microstructure to reroute incoming light towards multiple output points to maximize mechanical torque.
2：Sample Selection and Data Sources:
The structure was made of SU8 photoresist with a chiral shape.
3：List of Experimental Equipment and Materials:
A home-built direct laser writing set-up based on two-photon polymerization was used.
4：Experimental Procedures and Operational Workflow:
The team fabricated the geometry of the garden sprinkler and analyzed the losses when light propagates inside complex networks of optical fibres.
5：Data Analysis Methods:
Quantitative analysis was conducted for the losses when light propagates inside complex networks of optical fibres.
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