1：Experimental Design and Method Selection:

The experimental setup involves a small (3 mm inner-diameter) rubidium (Rb) vapor cell and two counter-propagating lasers at wavelengths of 780 nm and 480 nm for EIT spectroscopy on field-sensitive Rydberg states. The 780 nm laser is frequency stabilized to the Rb 5S1/2 to 5P3/2 transition, while the 480 nm laser frequency is scanned linearly across a range of 5P3/2 to Rydberg-state transitions.

2：Sample Selection and Data Sources:

The range of states / energy ranges scanned is adapted to the field-strength and frequency ranges of the RF fields to be measured.

3：List of Experimental Equipment and Materials:

A small rubidium vapor cell, two lasers (780 nm and 480 nm), and RF field generation equipment.

4：Experimental Procedures and Operational Workflow:

The transmission peaks of the 780 nm light through the vapor cell serve to locate the energy levels of the RF-field-perturbed Rydberg levels. The RF-field-induced frequency shifts of the Rydberg levels as well as the measured splitting patterns of the spectroscopic lines provide a measure for the RF field strength.

5：Data Analysis Methods:

Floquet theory is used as a non-perturbative method to quantify the atomic response in the high-field regime.