Summary
As part of an effort to improve quantum sensing, we are developing new semiconductor p-n junctions and designing novel nanowire arrays that have the potential to significantly enhance the ability to detect light at the single photon level over an unprecedented wavelength range from the ultraviolet to infrared. We are working to demonstrate high-speed single-photon detection with broadband high efficiency from the visible to near-infrared range (450-900 nm), with no need for cryogenic cooling. In the future, it will be possible to extend detection into the infrared wavelengths by changing the semiconductor material from InP to InGaAs. Applications resulting from this work can improve a broad range of technologies. These include quantum computing, quantum cryptography, single-molecule fluorescence spectroscopy, laser remote sensing (LIDAR), and single oxygen luminescence for cancer treatment dose monitoring.
Related Content
Advanced microwave electronics enabling quantum technologies
Summary Superconducting quantum computers require quantum-limited measurements at microwave frequencies in order to implement error correction. Conventionally, this is accomplished using near quantum-limited Josephson Parametric Amplifiers (JPAs). The JPAs require bulky ferrite-based circulators that prevent on-chip integration of the amplifiers with the processor and take up the majority of space and cooling power in the […]
April 1, 2020
Quantum Material Multilayer Photonic Devices and Network
Summary Realizing highly integrated quantum photonic devices on a chip can enable new opportunities for photonic quantum computation. In this project, we explore heterostructures of stacked two-dimensional (2D) materials, such transition metal dichalcogenides (TMDC) or graphene, combined with optical microcavities as a platform for such devices. 2D materials are extremely thin and flexible, and have […]
December 12, 2019
Towards large area, resonant quantum tunneling diodes by continuous Langmuir transfer of exfoliated 2D materials
Summary Atomically thin 2D materials constitute promising building blocks for quantum devices due to their exotic, layer-dependent electronic properties. The ability to stack these materials in alternating layers enables heterostructures to be built in almost limitless combinations and over small enough length scales to observe quantum phenomena. So far though, practical implementation of devices based […]
April 1, 2020
Quantum Information Processing with Molecular Lattices
The aim of the work is to develop theoretical tools to simulate and predict the behaviour of a one-dimensional chain of trapped dipolar molecules and to study the nature of entanglement as a design resource.
June 1, 2017