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. Author manuscript; available in PMC: 2015 Oct 26.
Published in final edited form as: IEEE Trans Robot. 2015 Feb;31(1):1–11. doi: 10.1109/TRO.2014.2367351

Fig. 10.

Fig. 10

Experiments for the measurement of optical power transfer efficiency. (a) Optical actuation with the distributed, optimized heating elements (in red) design but without gold coat on the PTFE core; (b) the same condition as (a), but with gold coating; (c) same condition as (b) but with SMA wire heated by electrical current for comparison.