Radio Frequency Electric Field Proofreading Method and Device Based on Rydberg Atomic Quantum Coherence Effect

A quantum coherent and atomic technology, applied in measuring devices, measuring electrical variables, instruments, etc., can solve problems such as large measurement errors, achieve the effects of overcoming large errors, easy miniaturization, and suitable for integration
CN106842095BActive Publication Date: 2019-06-28SHANXI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANXI UNIV
Publication Date
2019-06-28

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Abstract

The invention relates to a radio frequency electric field correcting method and device based on a Rydberg atom quantum coherence effect, and aims to solve the technical problem that an existing electric field measuring method has large errors. According to the adopted technical scheme, a glass cesium bubble provided with a pair of parallel electrode plates is used as a cesium atom sample cell, cesium atoms form electromagnetically induced transparency under the action of probe light sent by two laser light sources and coupling light, the electromagnetically induced transparency has Stark frequency shift and split under the action of a radio frequency electric field and generates dipole sidebands at the Rydberg energy level modulated by the radio frequency electric field, multiple energy level cross points are formed in the Stark spectrum, each cross point serves as a datum point for correcting the electric field, each datum point corresponds to an accurate electric field value, and then the determined electric value is used for correcting the radio frequency electric field. The device is composed of a cesium atom sample cell, two laser light sources, a radio frequency source, a high-reflectivity reflector, a dichroic mirror and a photoelectric detector.
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Description

technical field

[0001] The invention relates to a radio frequency electric field calibration technology, in particular to a radio frequency electric field calibration method and device based on the Rydberg atomic quantum coherence effect. Background technique

[0002] The precise measurement of radio frequency electric field is of great significance in the fields of basic scientific research and military technology. Accurate reference standards are required to achieve accurate measurements of radio frequency electric fields. Traditional radio frequency electric field measurement instruments, such as field strength meters and spectrum analyzers, are calibrated by placing them in an electric field with a known field strength, but the field strength of this known electric field is measured by a calibrated probe Yes, so the calibration of the electric field has entered a cyclic process, and the probes to be calibrated are generally made of metal, and metal probes will interfere...

Claims

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