Quantum Cascade Lasers:
We have been working with two groups, one from Universite Paris-Sud and the other from Harvard University, on novel Quantum Cascade lasers for microfluidic-based sensing:

Colombelli Group (Institut d'Electronique Fondamentale, Universite Paris-Sud, formerly Bell Labs)

Capasso Group (Harvard, formerly Bell Labs)

Integrated "Atom-Cavity" Chips:
For the last several years now we have been involved in a collaborative effort with the Mabuchi Group at Caltech to integrate so-called "atom-chips", which can manipulate clouds of ultra-cold neutral atoms with magnetic fields generated from on-chip microwires, with microphotonic chips that contain small-volume, high-Q resonant optical elements in which single atom-photon interactions are greatly enhanced. Beyond just single atom detection, such integrated chips are being developed as a key hardware piece of a quantum repeater, a device that could be utilized within a quantum network for distributing entangled resources and sending secret keys over long distances.

Semiconductor Quantum Dots for Cavity enhanced Exciton-Photon Coupling:
We are working with the research group led by Sanjay Krishna at the Center for High Technology Materials (CHTM) in Albuquerque, New Mexico. Professor Krishna's group provides the expertise in the design and epitaxial crystal growth of InAs self-assembled quantum dots used in these experiments. We are also working with Prof. Krishna's group to develop quantum dot mid-IR detectors with enhanced spectral selectivity and sensitivity.