Viewing posts from September, 2017

Plasmonic Nano-Antennas for Thermal Infrared Pixels

This was a seedling design study for a DARPA program that never got funded. It leveraged POEMS and my antenna-coupled tunnel junction devices, adding a couple of novel wrinkles: metal-insulator-metal varactors and parametric readout using a 10 GHz pump frequency. Hopefully there will be a chance to revisit this, because it was potentially a pretty sweet solution.

Long-range IR transceiver

For a large Far Eastern consumer electronics manufacturer to use in virtual reality games. A greatly improved transimpedance amplifier got them a factor of 10 in range (30 m vs. 3 m) for about the same amount of power.

Aircraft Carrier Flight Deck Optical Communications Link

Photon Budget and Optical Data Receiver
This one was a somewhat similar application for the Navy.

Ad Hoc Optical Battlefield Network: Optical Data Receiver

This was a collaboration with Chris Wieland of Della Enterprises on an Army Research contract.

Downhole Interferometry: Cavity-Stabilized 1550-nm Laser

This was in collaboration with a start-up in New Mexico called Symphony Acoustics. Downhole measurements are notoriously difficult, and this one was no exception: building a laser that could achieve an Allan variance of 10-10 at 10,000 seconds, and do it 5000 feet down a 2-inch cased drillhole. Due to the casing thickness, the maximum outer diameter of the instrument package was 38 mm, including its own casing and two concentric zones of thermal control.