activity
20182023
most citedSystematic Improvements in Transmon Qubit Coherence Enabled by Niobium Surface Encapsulation

123 citations · 179 across the 7 of their papers we have counts for

collaborators

7 papers

quant-ph2023★ 123 cited

Systematic Improvements in Transmon Qubit Coherence Enabled by Niobium Surface Encapsulation

Mustafa Bal, Akshay A. Murthy, Shaojiang Zhu +37

We present a novel transmon qubit fabrication technique that yields systematic improvements in T relaxation times. We fabricate devices using an encapsulation strategy that inv…

cond-mat.mtrl-sci2022★ 2 cited

Multi-modal electron microscopy study on decoherence sources and their stability in Nb based superconducting qubit

Jin-Su Oh, Xiaotian Fang, Tae-Hoon Kim +14

Niobium is commonly used for superconducting quantum systems as readout resonators, capacitors, and interconnects. The coherence time of the superconducting qubits is mainly limite…

physics.optics2021★ 52 cited

Avalanche Photodetectors with Photon Trapping Structures for Biomedical Imaging Applications

Cesar Bartolo-Perez, Soroush Ghandiparsi, Ahmed S. Mayet +8

Enhancing photon detection efficiency and time resolution in photodetectors in the entire visible range is critical to improve the image quality of time-of-flight (TOF)-based imagi…

physics.optics2020

Maximizing absorption in photon trapping ultra-fast silicon photodetectors

Cesar Bartolo-Perez, Wayesh Qarony, Soroush Ghandiparsi +9

Silicon photodetectors operating at near-infrared wavelengths with high-speed and high sensitivity are becoming critical for emerging applications, such as Light Detection and Rang…

physics.app-ph2018★ 1 cited

Enhanced quantum efficiency and reduction of reflection for MSM photodetectors with nano-structured surface

Ekaterina Ponizovskaya Devine, Yang Gao, Cesar Perez +4

The photon trapping nano-structures help to enhance quantum efficiency and reduce reflection for MSM photodetector that allows fast Si photodetectors at wavelength 800-950nm. The n…

physics.app-ph2018

Quantum efficiency enhancement of mid infrared photodetectors with photon trapping micro-structures

Ekaterina Ponizovskaya Devine, Hilal Cansizoglu, Yang Gao +5

The study proposes to use the photon trapping micro-structures to enhance quantum efficiency of the mid infrared photodetectors. The nanostructure that is consist of micro holes re…