Abstract: A hybrid optical-electrical neural interface is disclosed and described. The neural interface can include an array (100) having a plurality of micro-optrodes (HO). The micro-optrodes (110) are capable of optical and optionally electrical stimulation and recording, allowing bidirectional, multi-modal communication with neural tissue. At least a portion of the plurality of micro-optrodes (110) are independently optically addressable and include an optical waveguide along each micro-optrode (HO). Combining optical stimulation with electrical recording can allow artifact-free recording from nearby electrodes and in some cases even the same electrode, which is difficult to achieve with combined electrical recording and stimulation. The optical waveguide is configured to direct light towards a distal end (125) of the micro-optrode, allowing focal stimulation and recording. Penetrating micro-optrodes (110) can allow access to deep tissue, while non-penetrating micro-optrodes can be used for extraneural stimulation.

Abstract: A testing and analysis system for a pressure-sensitive device (42) that includes a testing stage (10) comprising a platform having a groove situated on an upper surface, an endless support gasket located in the endless groove, a pressure port located on the upper surface and interior to the endless groove, and a means for securing a substrate above the upper surface. The substrate (40) supports a pressure-sensitive device (42) to form a pressure chamber between the substrate (40) and the upper surface. A pressure source (32) is operatively connected to the pressure port to modify a pressure inside the pressure chamber and deflect the pressure-sensitive device (42). A surface profile measurement apparatus (104) is included for measuring a surface profile of the deflected pressure-sensitive device (42).

Abstract: A testing and analysis system for a pressure-sensitive device (42) that includes a testing stage (10) comprising a platform having an upper surface, a groove situated on the upper surface, an endless support gasket located in the endless groove, a pressure port located on the upper surface and interior to the endless groove, and a means for securing a substrate above the upper surface. The system also includes a substrate (40) supporting a pressure-sensitive device (42), such that the substrate (40) is secured above the upper surface and in contact with the endless support gasket to form a pressure chamber between the substrate (40) and the upper surface and in fluid communication with the pressure-sensitive device (42). The system further includes a pressure source (32) operatively connected to the pressure port and configured to modify a pressure inside the pressure chamber and deflect the pressure-sensitive device (42).