Electromagnetically induced transparency (EIT) is a coherent optical nonlinearity which renders a medium transparent within a narrow spectral range around an absorption line. Extreme dispersion is also created within this transparency "window" which leads to "slow light", described below.

2023年12月12日 · In this communication, we report the measurement of the 6Li Rydberg excitation spectrum by ladder-type electromagnetically induced transparency (EIT) in a vapor cell. The 2p→ns/nd EIT spectra were recorded by sweeping the frequency of an ultraviolet Rydberg pumping laser while keeping the probing laser resonant to the 2s→2p transition.

(EIT) spectra of 40K atoms in the 37s Rydberg state with respect to the two different detection lights. Simultaneously, using the probe light locked by the ultra-stable cavity, we measured the...

We experimentally observe the EIT spectra of the Rydberg states decorated by radio-frequency electric fields, which optically detects Rydberg atoms. The effect of the amplitude and frequency of the RF electric field on the spectrum is explored in light of changes in the EIT spectrum.

2025年1月27日 · In our measurements of EIT spectra, we identify two types of EIT signatures that correspond with distinct excitation pathways and atomic velocity classes in the atomic vapor. The $5D_{3/2}$ hyperfine structure and Autler-Townes splittings lead to complex patterns in the EIT spectra, which we analyze with the aid of 10-level EIT simulations.

2025年2月17日 · 在室温铯原子气室中利用探测光（852 nm）与耦合光（510 nm）构建的里德堡阶梯型结构，实现了基于射频场缀饰的直流电场Floquet-EIT（electromagnetically induced transparency，电磁诱导透明）光谱，并研究了直流电场下的Floquet-EIT光谱特性．实验发现，仅射频电场作用时 ...

2025年1月22日 · In Rydberg quantum electric field sensing, the amplitude and linewidth of electromagnetically induced transparency (EIT) spectra significantly impact the accuracy of electric field measurements. This paper discusses the influence of atomic density on the amplitude and linewidth of EIT spectra in a vapor cell within a three-level ladder system ...

2023年9月13日 · Electromagnetically induced transparency (EIT) plays an important role in sensors, optical memories, and integrated metamaterials. However, most of the structures can produce only one transparent window, and there are few reports on the application of carbon nanotubes (CNTs) films in EIT.

2025年2月13日 · The typical Rydberg-based microwave electric field detection technique relies on electromagnetically induced transparency (EIT) and resonance microwave electric field induced Autler–Townes (AT ...

6 天之前 · Transmission spectra of a metasurface composed of strip and square ring were investigated, and we analyzed the effect of a single component and the whole structure on BIC characteristics. Specifically, the individual component did not exhibit EIT-BIC in the appropriate frequency range, but EIT-BICs appear when the resonators couple to each other.