2D Quantum Materials for Quantum Information Processing and Sensing*

It was recently shown that 2D materials can be assembled into entirely new types of heterostructures, enabling optoelectronic properties that were impossible using bulk semiconductors. These atomically engineerable heterostructures hold particular promise for quantum technologies. Here, we review our recent work in two application areas. The first part of the talk focuses on chip-integrated graphene photodetectors. Depending on the different photodetection processes available in graphene, waveguide-integrated detectors can attain high response speed and responsivity [1], and they also promise single-photon resolution across a broad optical spectrum[2]. The second part of the talk focuses on light sources, including spectrally tunable thermal[3] and spectrally tunable single-photon sources[4].

References
[1] R.-J. Shiue et al, Nano Lett. 15, 7288 (2015)
[2] Evan D. Walsh et al, Phys. Rev. Applied 8, 024022 (2017).
[3] R.-J. Shiue et al, Conference on Lasers and Electro-Optics (OSA, Washington, D.C., n.d.), p. STu4F.5.
[4] G. Grosso et al, Nature Communications 8 (2017)