Modulation transfer protocol for Rydberg RF receivers

Abstract

We propose and demonstrate a modulation transfer protocol to increase the detection sensitivity of a Rydberg RF receiver to fields out of resonance from the transition between Rydberg levels. This protocol is based on a phase modulation of the control field used to create the Electromagnetically Induced Transparency (EIT) signal. The nonlinear wave-mixing of the multi-component coupling laser and the probe laser transfers the modulation to the probe laser, which is used for RF-field detection. The measurements compare well with semi-classical simulations of atom-light interaction and show an improvement in the RF bandwidth of the sensor and an improved sensitivity of the response to weak fields.

References in corpus (4)

• Broadband Rydberg Atom-Based Electric-Field Probe: From Self-Calibrated Measurements to Sub-Wavelength Imaging
• Modulation transfer spectroscopy in atomic rubidium
• Laser frequency stabilization to highly excited state transitions using electromagnetically induced transparency in a cascade system
• Modeling Line Broadening and Distortion Due to Spatially Non-Uniform Fields in Rydberg Electrometry