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Microwave controlled Electromagnetically Induced Transparency inside an RF cavity

K. Asha, Umesh Mohan, V Ranjith, M. Manukumara, T. M. Preethi, Anish D. Roshi, Andal Narayanan

Published Jun 25, 2013• 0 citations
OpenAlex

Abstract

We detail the construction of a microwave cavity resonator at 3.0357 GHz. We describe the effect of this resonator on the Electromagnetically Induced Transparency (EIT) phenomenon shown by 85Rb: atoms enclosed within the resonator.

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Microwave controlled Electromagnetically Induced Transparency inside an RF cavity

K. Asha, Umesh Mohan, V Ranjith +4 more

We detail the construction of a microwave cavity resonator at 3.0357 GHz. We describe the effect of this resonator on the Electromagnetically Induced Transparency (EIT) phenomenon shown by 85Rb. atoms enclosed within the resonator.

International conference on fiber optics and photonics•Jan 1, 2012•0 citations

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We introduce a metamaterial for realizing true electromagnetically induced transparency (EIT) in analogy to atomic EIT effect. In the metamaterial, two resonant modes oscillating at different resonant frequencies are coupled through three-wave mixing in the presence of an auxiliary wave, and sharp transparency attributed to EIT effect is induced. We experimentally demonstrate the EIT effect using the metamaterial loaded with nonlinear capacitors in microwave region.

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Electromagnetically induced transparency in a near-resonance coupling field

Meng Wang, Jin-Hai Bai, Li-Ya Pei +8 more

The phenomenon of electromagnetically induced transparency (EIT) in 85Rb atomic vapor is studied in a -type of four-level system with the coupling laser frequency detuned from the atomic resonance frequency. We find that the EIT intensity grows weaker as the coupling laser frequency is detuned from resonance, but the relative depth of the transparency window increases. The maximum depth appears when the coupling frequency is detuned at about +180 MHz, not at the resonance frequency. We demonstrate that this is a result of the combined effect of the two excited states, and present a theoretical analysis based on the four-level system, which agrees quite well with the experimental results.

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Induced Transparency with Optical Cavities

Haoye Qin, Ming Ding, Yiheng Yin

Induced transparency, an interference effect due to mode coupling, has attracted significant research interest. The first discovered and most striking type of induced transparency plays electromagnetically induced transparency (EIT) in atomic systems. Optical cavities serve as a more ideal and feasible platform for realizing the effects of induced transparency, which leads to considerable demonstrations in theory and experiments. This review provides a run‐through of research findings on different types of induced transparency phenomenon, including, inter alia, EIT, optomechanically induced transparency, plasmon‐induced transparency, Brillouin scattering induced transparency, optically induced transparency, photothermally induced transparency, and dipole‐induced transparency. Their mechanisms, developments, techniques, and applications are discussed in detail. Most importantly, the emerging area of induced transparency at exceptional points is analyzed for its great promise. The last section presents a brief summary and perspective of induced transparency with optical cavities.

Advanced Photonics Research•Sep 30, 2020•25 citations
The phenomenon of electromagnetically induced transparency (EIT) in 85Rb atomic vapor is studied in a -type of four-level system with the coupling laser frequency detuned from the atomic resonance frequency. We find that the EIT intensity grows weaker as the coupling laser frequency is detuned from resonance, but the relative depth of the transparency window increases. The maximum depth appears when the coupling frequency is detuned at about +180 MHz, not at the resonance frequency. We demonstrate that this is a result of the combined effect of the two excited states, and present a theoretical analysis based on the four-level system, which agrees quite well with the experimental results.
Cavity electromagnetically induced transparency (EIT) is created in a three-level atomic system confined in a cavity and coupled to a free-space control laser and is manifested as a narrow transmission peak of a probe laser coupled into the cavity mode and tuned to the two-photon Raman resonance with the control laser. Cavity EIT can be observed with a control laser detuned from the atomic transition frequency in a range limited by the vacuum Rabi splitting of two cavity-atom normal modes. This leads to the broadband cavity EIT obtained in the coupled-cavity-atom system with a free-space, broadband control laser. We report an experimental observation of broadband cavity EIT in cold Rb atoms with a frequency-modulated control laser and discuss its application in multichannel and multifrequency light memory.
Induced transparency, an interference effect due to mode coupling, has attracted significant research interest. The first discovered and most striking type of induced transparency plays electromagnetically induced transparency (EIT) in atomic systems. Optical cavities serve as a more ideal and feasible platform for realizing the effects of induced transparency, which leads to considerable demonstrations in theory and experiments. This review provides a run‐through of research findings on different types of induced transparency phenomenon, including, inter alia, EIT, optomechanically induced transparency, plasmon‐induced transparency, Brillouin scattering induced transparency, optically induced transparency, photothermally induced transparency, and dipole‐induced transparency. Their mechanisms, developments, techniques, and applications are discussed in detail. Most importantly, the emerging area of induced transparency at exceptional points is analyzed for its great promise. The last section presents a brief summary and perspective of induced transparency with optical cavities.