The Charles Stark Draper Laboratory, Inc.

Parshant Kumar

John Joseph LeBlanc

Jesse J Wheeler

Joseph J Register

Charles A Lissandrello

Carlos A Segura

David J Carter

Eugene H Cook

Tirunelveli Subramaniam Sriram

William Whitcomb McFarland

Alla A Gimbel

Clayton Morris

John J Leblanc

A device can include a first compliant optrode. The first compliant optrode can be introduced into a tissue sample and can include a stack of flexible waveguide materials providing a first optical interface. The stack of flexible waveguide materials can have a thickness of less than about 100 microns. The first compliant optrode can be linear and can be configured to bend at a turn radius of less than about 300 microns.

Compliant optrodes for monitoring and stimulating biological tissue with patterned light

The material stack of the present disclosure can be used for fabricating optical waveguides that are thin and flexible, and that can bend light around small turns. The stack of materials can include a polymer core and a cladding, which together can create a large difference in refractive index. As a result, light can remain within the core even when bent around radii where standard glass fibers could fail.

Flexible optical waveguides and methods for manufacturing flexible optical waveguides

A mold for casting a micro-scale structure includes an upper surface including a first cavity having a first depth. A negative pattern for an array of micro-scale structures is defined in a surface of the first cavity. The mold includes at least one second cavity having a second depth defined in the cavity outside of the negative pattern for the array of micro-scale structures. The at least one second cavity defines a negative pattern for a standoff of the micro-scale structure. A fabric retaining frame is disposed in the first cavity.

Polymer microwedges and methods of manufacturing same

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Cambridge, MA, United States of America

Parshant Kumar