A Josephson radiation comb generator

Abstract

We propose the implementation of a Josephson Radiation Comb Generator (JRCG) based on a dc superconducting quantum interference device (SQUID) driven by an external magnetic field. When the magnetic flux crosses a diffraction node of the critical current interference pattern, the superconducting phase undergoes a jump of $\pi$ and a voltage pulse is generated at the extremes of the SQUID. Under periodic drive this allows one to generate a sequence of sharp, evenly spaced voltage pulses. In the frequency domain, this corresponds to a comb-like structure similar to the one exploited in optics and metrology. With this device it is possible to generate up to several hundreds of harmonics of the driving frequency. For example, a chain of $50$ identical high-critical-temperature SQUIDs driven at 1 GHz can deliver up to a $0.5$ nW at 200 GHz. The availability of a fully solid-state radiation comb generator such as the JRCG, easily integrable on chip, may pave the way to a number of technological applications, from metrology to sub-millimeter wave generation.

9 pages, 6 color figures

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Cited by in corpus (18)

• Demonstration of an ac Josephson junction laser
• A coherent nanomechanical oscillator driven by single-electron tunnelling
• Field-Effect Controllable Metallic Josephson Interferometer
• Josephson thermal memory
• Josephson Flux Flow Oscillator: the Microscopic Tunneling Approach
• A Microwave Josephson Refrigerator
• High operating temperature in V-based superconducting quantum interference proximity transistors
• Proximity SQUID single photon detector via temperature-to-voltage conversion
• Integrated and DC-powered superconducting microcomb
• Magnetic Flux Pumping in Superconducting Loop Containing a Josephson $\psi$ Junction
• Radiation comb generation with extended Josephson junctions
• Dissipative protection of a GKP qubit in a high-impedance superconducting circuit driven by a microwave frequency comb
• Spectral representation of the heat current in a driven Josephson junction
• Resonance phenomena in the annular array of underdamped Josephson junctions
• Zero-dimensional topologically nontrivial state in a superconducting quantum dot
• Parasitic effects in SQUID-based radiation comb generators
• Coherent microwave comb generation via the Josephson effect
• Quantitative analysis of the interaction between a dc SQUID and an integrated micromechanical doubly clamped cantilever