Fabrication of large micro-structured high-numerical-aperture optofluidic compound eyes with tunable angle of view

• DOI: 10.1364/oe.26.033356
• Publication Date: 2018-12-06T21:13:54Z
• Authors: Qiao Xu; Bo Dai; Ziao Jiao; Ruijin Hong; Zhuoqin Yang; Dawei Zhang; Songlin Zhuang
• Keywords: Numerical aperture; Microlens

A large optofluidic compound eye is developed by using a straightforward, rapid, and low-cost technique. The eye's angle of view can be adjusted injecting deionized water/calcium chloride solution different volume into the chip. Optofluidic eyes containing about 78,000 microlenses 50 μm diameter are fabricated for analysis. tuned up to 104°. With deformation, microlenses' focal length increases, due variation in profile. Owing non-uniform strain over eye, central lenses experience more variation. Furthermore, optical imaging demonstrated sharp images obtained from omnidirectional microlenses.