Quantum Dots in Optical Cavities for Sharp and Variable Spectral Response

We propose to embed quantum dots in resonant optical cavities to sharpen their spectral respone and provide a mechanism to spatially vary it across an infrared detector array. This project will combine the self-assembled-quantum-dot epitaxy expertise of Professor Towe's group at Carnegie Mellon University with the infrared focal plane array design, fabrication, and test expertise of QmagiQ. Phase 1 will model device performance and experimentally validate the device concept with test devices. In Phase 2, we will develop a "spectrometer on a chip" consisting of a detector array hybridized to a readout multiplexer, and having a laterally varying sharp spectral response.