DANIEL HARRINGTON

Transverse spatial modes realize another degree of freedom in integrated photonic systems. I am working on manipulating the superposition of modes in a waveguide to create arbitrary field distributions for imaging both inside and outside of the waveguide, with the goal of further miniaturizing optical phased array capabilities for a variety of applications including biology and quantum information science. In Preparation.

Quantum state tomography is generally not efficient and uses a high number of measurements. I am working on applying new results in matrix analysis to recover the density matrix efficiently using fewer measurements than traditional methods. This method uses results from optimal transport and the Bures-Wasserstein geometry to efficiently recover the state with only Pauli basis measurements.

Molybdenum disulfide (MoS2) is a promising 2D material which in its monolayer structure is a direct bandgap semiconductor. It has a high optical absorption and mobility for its thickness, making it appealing for nanoscale photodetection applications. My work included investigating the passivation effects of various polymers on charge dynamics in MoS2 to evaluate potential performance of FET MoS2 photodetectors. Appl. Phys. Lett. 124, 012106 (2024).

Simulation of electromagnetic waves from two sources propagating through space with graphs for wave amplitude at a barrier and amplitude of interference pattern.

Demonstration of Coulomb's Law through a simulation of two point charges that draws the electric field lines between and around them. Points have variable charges that influence the number of field lines drawn.