High Signal to Noise Ratio in Miniaturized Atomic Cells ‎by Frequency Modulation Spectroscopy Method

Mirzaei, Ali; Asadollahsalmanpour, Mahnaz; Sotoudeh, Majid; Mosleh, Mohammad; Hamidi, Seyedeh Mehri

doi:10.48308/piadm.2025.105969

High Signal to Noise Ratio in Miniaturized Atomic Cells ‎by Frequency Modulation Spectroscopy Method

Document Type : Original Article

Authors

Ali Mirzaei

Mahnaz Asadollahsalmanpour

Majid Sotoudeh

Mohammad Mosleh

Seyedeh Mehri Hamidi

Magneto-plasmonic Lab, Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran

10.48308/piadm.2025.105969

Abstract

Miniaturized atomic vapor cells are useful devices that would trace activity of electrical signals of ‎‎brain, Nitrogen vacancy center magnetometry, electric and magnetic fields' sensors and some other ‎applications. High ‎signal to noise ratio in these miniaturized systems is one of the main bottlenecks ‎which must be ‎managed by selective spectroscopy methods. Here we introduce novel type of atomic ‎vapor cell based on Rubidium hot atomic vapor suitable to ‎increase spatial resolution of ‎magnetometers and advantages of frequency modulation spectroscopy ‎method to increase spectral ‎resolution. These cells fabricate in 10-3 mbarr base pressure and under nitrogen Gas filling in clean ‎vacuum system. Combination of these cells and spectroscopy method would ‎be used in feedback ‎loops of laser system of atomic sensors to lock on desired atomic transition. ‎These ideas for new ‎miniaturized cell can open new insight in quantum based devices in new generation of quantum ‎sensor's, atomic clock or quantum computation applications.‎

Keywords

Atomic magnetometer

Rubidium microcell

Frequency modulation spectroscopy

Amplitude ‎modulation spectroscopy

magneto-plasmonic