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Postdoctoral Appointee - Superconducting Devices
Job in
Lemont, DuPage County, Illinois, 60439, USA
Listed on 2026-04-21
Listing for:
Argonne National Laboratory
Full Time
position Listed on 2026-04-21
Job specializations:
-
Engineering
Research Scientist, Electrical Engineering
Job Description & How to Apply Below
Postdoctoral Appointee - Superconducting Devices for Multipixel Single-Photon Detection and Multiplexed Readout
Argonne National Laboratory invites applications for a postdoctoral research position in experimental physics and superconducting device development, with a focus on advancing multipixel single-photon camera technology and multiplexed readout for quantum information science applications.
As part of a multidisciplinary team spanning multiple Argonne divisions, you will contribute to the design, fabrication, and characterization of superconducting devices based on high kinetic inductance materials, while having the opportunity to shape a new research capability with broad impact across quantum networking, communications, and computing.
Research Focus
* Design and fabricate superconducting devices exploiting the nonlinear kinetic inductance of thin superconducting films, including microwave resonators for frequency-domain multiplexed readout of single photon detectors (kinetic inductance current sensors)
* Develop and characterize superconducting nanowire single-photon detectors (SNSPDs) using high kinetic inductance materials such as NbN, TiN, and NbTiN, targeting high detection efficiency from visible to telecom wavelengths
* Implement and test scalable readout architectures for nanowire arrays, including multiplexing concepts based on superconducting cryogenic switches (hTron, fTron)
* Perform low-noise cryogenic measurements of device performance, including timing jitter, dark count rate, detection efficiency, and resonator quality factors
* Iterate rapidly on fabrication processes and readout circuit designs informed by device characterization and electromagnetic simulations
* Contribute to the development of complete instrument systems for characterization of solid-state single-photon emitters, including photon correlation and spectroscopy measurements
About the Team
You will join a collaborative team of physicists and engineers drawn from Argonne's High Energy Physics (HEP), X-ray Science (XSD), and Materials Science (MSD) divisions. The team brings together deep expertise in superconducting detector arrays, thin-film materials development, nanofabrication, cryogenic instrumentation, quantum communications, and solid-state quantum emitter systems. The project leverages existing Argonne infrastructure including dilution refrigerators, adiabatic demagnetization refrigerators, low-noise DC and RF measurement equipment, and cleanroom fabrication facilities including at the Center for Nanoscale Materials (CNM).
Position Requirements
* Recent or soon-to-be-completed PhD (within the last 0-5 years) in physics, electrical engineering, materials science, or a related discipline
* Demonstrated experience with superconducting devices or similar quantum/low-temperature technologies, particularly design, fabrication, and/or measurement
* Proficiency in low-noise cryogenic measurement techniques at millikelvin to few-kelvin temperatures
* Ability to model Argonne's core values of impact, safety, respect, integrity, and teamwork
Preferred Knowledge, Skills, and Experience
* Experience with superconducting nanowire single-photon detectors (SNSPDs), transition-edge sensors (TESs), or kinetic inductance detectors (KIDs)
* Experience with cleanroom microfabrication processes, including thin-film deposition (e.g., magnetron sputtering), electron-beam or optical lithography, and dry/wet etching
* Familiarity with microwave resonator design, characterization, and RF/microwave measurement techniques
* Electromagnetic simulation experience (e.g., Sonnet, Ansys HFSS/Lumerical, or similar tools)
* Experience with data acquisition, instrument control, and data analysis in Python or similar languages
* Knowledge of quantum optics measurements such as photon correlation functions or photon-number-resolved detection
* Familiarity with aspects of condensed matter and BCS superconductivity theory applicable to high kinetic inductance superconducting materials
Job Family
Postdoctoral
Job Profile
Postdoctoral Appointee
Worker Type
Long-Term (Fixed Term)
Time Type
Full time
The expected hiring range for this position is $72,879.00-$.
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