Postdoc: Multi-Pixel Superconducting Photon Detectors

Argonne National Laboratory; Lemont (IL); On-site; USD 73,000 - 121,000; Full time

Job summary

Argonne National Laboratory invites applications for a postdoctoral research position in experimental physics and superconducting device development, focused on multipixel single-photon camera technology and multiplexed readout systems for quantum information science.

The successful candidate will design, fabricate, and characterize superconducting devices based on high kinetic inductance materials, perform low-noise cryogenic measurements, and contribute to scalable readout architectures and

Qualifications

• Recent or soon-to-be-completed PhD in physics, electrical engineering, materials science, or a related field.
• Demonstrated experience with superconducting devices or related quantum/low-temperature technologies, particularly in device design, fabrication, and/or measurement.
• Proficiency in low-noise cryogenic measurement techniques spanning millikelvin to few-kelvin temperatures.

Responsibilities

• Design and fabricate superconducting devices leveraging kinetic inductance of thin films, including microwave resonators for readout of single-photon detectors.
• Develop and characterize SNSPDs using NbN, TiN, NbTiN to achieve high detection efficiency from visible to telecom wavelengths.
• Implement scalable readout architectures for nanowire arrays and multiplexing using cryogenic switches like hTron and fTron.
• Perform low-noise cryogenic measurements to assess timing jitter, dark count rate, detection efficiency and resonator Q factors.
• Refine fabrication processes and readout circuit designs based on device characterization and simulations.
• Contribute to integrated instrument systems for solid-state single-photon emitters, including photon correlation and spectroscopy measurements.

Skills

Experimental physics

Cryogenic measurements

Low-noise measurements

Quantum optics measurements

Python data analysis

Nanofabrication

Education

PhD in physics, electrical engineering, materials science or related field

Tools

Sonnet

HFSS

LumerICAL

Python

Job description

Argonne National Laboratory invites applications for a postdoctoral research position in experimental physics and superconducting device development, focused on multipixel single-photon camera technology and multiplexed readout systems for quantum information science.

The successful candidate will design, fabricate, and characterize superconducting devices based on high kinetic inductance materials, perform low-noise cryogenic measurements, and contribute to scalable readout architectures and