Fluidic microoptics with adjustable focusing and beam steering for single cell optogenetics
Author(s)
Berry, Shaun; Redmond, Shawn; Robinson, Paul; Thorsen, Todd; Rothschild, Mordechai; Boyden, Edward S; ... Show more Show less
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© 2017 Optical Society of America. Electrically controlled micron-scale liquid lenses have been designed, fabricated and demonstrated, that provide both adjustable focusing and beam steering, with the goal of applying them to optogenetic in vivo mapping of brain activity with single cell resolution. The liquid lens is formed by the interface between two immiscible liquids which are contained in a conically tapered lens cavity etched into a fused silica substrate. Interdigitated electrodes have been patterned along the sidewall of the taper to control the liquid lens curvature and tilt. Microlenses with apertures ranging in size from 30 to 80 μm were fabricated and tunable focusing ranging from 0.25 to 3 mm and beam steering of ± 1 degree have been demonstrated.
Date issued
2017Department
Lincoln Laboratory; Massachusetts Institute of Technology. Department of Biological Engineering; Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences; Massachusetts Institute of Technology. Media Laboratory; McGovern Institute for Brain Research at MITJournal
Optics Express
Publisher
The Optical Society