1.5k citations · 3.5k across the 22 of their papers we have counts for
22 papers
Impedance-matched differential superconducting nanowire detectors
Marco Colangelo, Boris Korzh, Jason P. Allmaras +24
Superconducting nanowire single-photon detectors (SNSPDs) are the highest performing photon-counting technology in the near-infrared (NIR). Due to delay-line effects, large area SN…
Integrated photonics on thin-film lithium niobate
Di Zhu, Linbo Shao, Mengjie Yu +12
Lithium niobate (LN), an outstanding and versatile material, has influenced our daily life for decades: from enabling high-speed optical communications that form the backbone of th…
Electrical Control of Surface Acoustic Waves
Linbo Shao, Di Zhu, Marco Colangelo +7
Acoustic waves at microwave frequencies have been widely used in wireless communication and recently emerged as versatile information carriers in quantum applications. However, mos…
Single-photon detection in the mid-infrared up to 10 micron wavelength using tungsten silicide superconducting nanowire detectors
V. B. Verma, B. Korzh, A. B. Walter +15
We developed superconducting nanowire single-photon detectors (SNSPDs) based on tungsten silicide (WSi) that show saturated internal detection efficiency up to a wavelength of 10 u…
A compact and tunable forward coupler based on high-impedance superconducting nanowires
Marco Colangelo, Di Zhu, Daniel F. Santavicca +3
Developing compact, low-dissipation, cryogenic-compatible microwave electronics is essential for scaling up low-temperature quantum computing systems. In this paper, we demonstrate…
Superconducting MoN thin films prepared by DC reactive magnetron sputtering for nanowire single-photon detectors
Lily Hallett, Ilya Charaev, Akshay Agarwal +4
We present a comprehensive study of molybdenum nitride (MoN) thin film deposition using direct current (DC) reactive magnetron sputtering. We have investigated the effect of variou…
Enhancing the Performance of Superconducting Nanowire-Based Detectors with High-Filling Factor by Using Variable Thickness
Reza Baghdadi, Ekkehart Schmidt, Saman Jahani +9
Current crowding at bends of superconducting nanowire single-photon detectors is one of the main factors limiting the performance of meander-style detectors with large filling fact…
Reconfigurable electro-optic frequency shifter
Yaowen Hu, Mengjie Yu, Di Zhu +7
Here we demonstrate an on-chip electro-optic frequency shifter that is precisely controlled using only a single-tone microwave signal. This is accomplished by engineering the densi…
Cavity electro-optics in thin-film lithium niobate for efficient microwave-to-optical transduction
Jeffrey Holzgrafe, Neil Sinclair, Di Zhu +6
Linking superconducting quantum devices to optical fibers via microwave-optical quantum transducers may enable large scale quantum networks. For this application, transducers based…
Resolving photon numbers using a superconducting tapered nanowire detector
Di Zhu, Marco Colangelo, Changchen Chen +4
Time- and number-resolved photon detection is crucial for photonic quantum information processing. Existing photon-number-resolving (PNR) detectors usually have limited timing and…
Synthesis and Observation of Non-Abelian Gauge Fields in Real Space
Yi Yang, Chao Peng, Di Zhu +4
Gauge fields, real or synthetic, are crucial for understanding and manipulation of physical systems. The associated geometric phases can be measured, for example, from the Aharonov…
Demonstration of microwave multiplexed readout of DC biased superconducting nanowire detectors
A. K. Sinclair, E. Schroeder, D. Zhu +5
Superconducting nanowires are widely used as sensitive single photon detectors with wide spectral coverage and high timing resolution. We describe a demonstration of an array of DC…
A General Theoretical and Experimental Framework for Nanoscale Electromagnetism
Yi Yang, Di Zhu, Wei Yan +7
Local, bulk response functions, e.g permittivity, and the macroscopic Maxwell equations completely specify the classical electromagnetic problem, which features only wavelength …
Superconducting nanowire single-photon detector with integrated impedance-matching taper
Di Zhu, Marco Colangelo, Boris A. Korzh +11
Conventional readout of a superconducting nanowire single-photon detector (SNSPD) sets an upper bound on the output voltage to be the product of the bias current and the load imped…
Jitter Characterization of a Dual-Readout SNSPD
D. F. Santavicca, B. Noble, C. Kilgore +4
To better understand the origins of the timing resolution, also known as jitter, of superconducting nanowire single-photon detectors (SNSPDs), we have performed timing characteriza…
Indistinguishable Single-Photon Sources with Dissipative Emitter Coupled to Cascaded Cavities
Hyeongrak Choi, Di Zhu, Yoseob Yoon +1
Recently, Grange et al. [Phys. Rev. Lett. 114, 193601 (2015)] showed the possibility of single photon generation with high indistinguishability from a quantum emitter, despite stro…
A distributed electrical model for superconducting nanowire single photon detectors
Qing-Yuan Zhao, Daniel F. Santavicca, Di Zhu +2
To analyze the switching dynamics and output performance of a superconducting nanowire single photon detector (SNSPD), the nanowire is usually modelled as an inductor in series wit…
Demonstrating sub-3 ps temporal resolution in a superconducting nanowire single-photon detector
B. A. Korzh, Q-Y. Zhao, S. Frasca +20
Improving the temporal resolution of single photon detectors has an impact on many applications, such as increased data rates and transmission distances for both classical and quan…
A scalable multi-photon coincidence detector based on superconducting nanowires
Di Zhu, Qing-Yuan Zhao, Hyeongrak Choi +4
Coincidence detection of single photons is crucial in numerous quantum technologies and usually requires multiple time-resolved single-photon detectors. However, the electronic rea…
Operation of a superconducting nanowire in two detection modes: KID and SPD
Edward Schroeder, Philip Mauskopf, Hamdi Mani +3
We present the performance of a superconducting nanowire that can be operated in two detection modes: i) as a kinetic inductance detector (KID) or ii) as a single-photon detector (…
Superconducting nanowire detector jitters limited by detector geometry
Niccolò Calandri, Qing-Yuan Zhao, Di Zhu +2
Detection jitter quantifies variance introduced by the detector in the determination of photon arrival time. It is a crucial performance parameter for systems using superconducting…
A Single-Photon Imager Based on Microwave Plasmonic Superconducting Nanowire
Qing-Yuan Zhao, Di Zhu, Niccolò Calandri +6
Detecting spatial and temporal information of individual photons by using single-photon-detector (SPD) arrays is critical to applications in spectroscopy, communication, biological…