Comparison of Different Rydberg Atom-Based Microwave Electrometry Techniques

In this study, we have compared different Rydberg atom-based microwave electrometry techniques under the same experimental conditions and using the same Rydberg states (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics>...

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Bibliographic Details
Main Authors: Eliel Leandro Alves Junior, Manuel Alejandro Lefrán Torres, Jorge Douglas Massayuki Kondo, Luis Gustavo Marcassa
Format: Article
Language:English
Published: MDPI AG 2025-06-01
Series:Atoms
Subjects:
Online Access:https://www.mdpi.com/2218-2004/13/7/59
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Summary:In this study, we have compared different Rydberg atom-based microwave electrometry techniques under the same experimental conditions and using the same Rydberg states (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>68</mn><msub><mi>S</mi><mrow><mn>1</mn><mo>/</mo><mn>2</mn></mrow></msub></mrow></semantics></math></inline-formula>, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>68</mn><msub><mi>P</mi><mrow><mn>3</mn><mo>/</mo><mn>2</mn></mrow></msub></mrow></semantics></math></inline-formula>, and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>67</mn><msub><mi>P</mi><mrow><mn>3</mn><mo>/</mo><mn>2</mn></mrow></msub></mrow></semantics></math></inline-formula>). The comparison was carried out for the following techniques: (i) auxiliary microwave field, (ii) microwave amplitude modulation, and (iii) polarization spectroscopy. Our results indicate that all three techniques have a similar minimum measurable microwave electric field. A slightly better result can be obtained by performing polarization spectroscopy using a Laguerre–Gauss coupling laser beam.
ISSN:2218-2004