Laser Actuated Microgripper Using Optimized Chevron-Shaped Actuator.

ABSTRACT: In this paper, we propose a laser actuated microgripper that can be activated remotely for micromanipulation applications. The gripper is based on an optothermally actuated polymeric chevron-shaped structure coated with optimized metallic layers to enhance its optical absorbance. Gold is used as a metallic layer due to its good absorption of visible light. The thermal deformation of the chevron-shaped actuator with metallic layers is first modeled to identify the parameters affecting its behavior. Then, an optimal thickness of the metallic layers that allows the largest possible deformation is obtained and compared with simulation results. Next, microgrippers are fabricated using conventional photolithography and metal deposition techniques for further characterization. The experiments sho

SUBMITTER: Ahmad B 

PROVIDER: S-EPMC8706880 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature