We are pleased to announce that Dr. Samuel P. Benz of the National Institute of Standards and Technology (NIST) will deliver the keynote address at the 105th ARFTG Conference.

Keynote Title:
Superconductive Electronics for Quantum-based Signal Synthesis and Measurements

Keynote Abstract:
For decades, NIST has been at the forefront of developing Josephson-junction-based circuits for precision measurement applications, particularly in quantum-based voltage standards. In his keynote, Dr. Benz will highlight the evolution of programmable Josephson voltage standards (PJVS) and the Josephson Arbitrary Waveform Synthesizer (JAWS), both of which serve as Standard Reference Instruments for metrology institutes and calibration laboratories worldwide.

He will introduce two newly developed RF signal sources—VHF JAWS and RF JAWS—that generate highly accurate voltage signals up to 50 MHz and multi-tone modulated waveforms up to 300 MHz. These digitally synthesized signals, based on the quantum properties of Josephson junctions, offer inherent accuracy and amplitude linearity, significantly advancing RF power calibration. Dr. Benz will also present novel Josephson sampler circuits capable of measuring cryogenic RF signals, including single-flux-quantum (SFQ) pulses with picosecond rise times. His talk will emphasize the quantum-locking phenomena that underpin these breakthroughs and their impact on future RF measurement technologies.

About the Speaker:
Dr. Samuel P. Benz is a renowned physicist and Project Leader of the Quantum Voltage Project at NIST. He holds a Ph.D. in physics from Harvard University and has made significant contributions to superconducting electronics, including Josephson voltage standards and waveform synthesis. Dr. Benz is the author of over 100 publications, the holder of three patents, and a recipient of the U.S. Department of Commerce Gold Medal for Distinguished Achievement. He is also a member of Phi Beta Kappa and Sigma Pi Sigma.

We look forward to welcoming Dr. Benz and invite all attendees to join us for this exciting keynote session highlighting the future of quantum-based RF metrology.