Electromagnetically induced transparency in solid-state atomic ensembles (Conference Presentation)

Elizabeth Goldschmidt; Haoquan Fan; Kumel Kagalwala; Alan Migdall

doi:10.1117/12.2319678

6 November 2018 Electromagnetically induced transparency in solid-state atomic ensembles (Conference Presentation)

Elizabeth Goldschmidt, Haoquan Fan, Kumel Kagalwala, Alan Migdall

Proceedings Volume 10771, Quantum Communications and Quantum Imaging XVI; 107710G (2018) https://doi.org/10.1117/12.2319678
Event: SPIE Optical Engineering + Applications, 2018, San Diego, California, United States

Abstract

We study Lambda-type electromagnetically induced transparency (EIT) in cryogenically-cooled, europium and praseodymium doped yttrium orthosilicate (Eu:YSO and Pr:YSO). We use spectral hole burning techniques to vary the optical inhomogeneous width of the sub-ensemble of atoms participating in the EIT. The effect of inhomogeneous broadening has been studied in the context of Doppler broadened gases, but less so in solids where motional effects are absent and the coherence is not limited by the transit of atoms through the optical field. Rare earth doped crystals, like many solid-state systems, exhibit spectral hole burning in which a narrowband laser field optically pumps atoms to states in the ground manifold that are dark with respect to the applied field, opening up a transparency window that persists after the pumping laser is shuttered. More complex sequences of fields at multiple frequencies can create arbitrary spectral profiles, within bounds set by the particular energy level structure of the atoms. For both Eu:YSO and Pr:YSO, there are three hyperfine ground states and three hyperfine excited states (at zero magnetic field) and all nine transitions are dipole-allowed with varying transition strengths. We use spectral hole-burning techniques to prepare a sub-ensemble of atoms in a particular frequency class and a particular ground spin state, while also pumping atoms out of another ground state to create a Lambda system. We observe the same functional dependence of the EIT width on the optical inhomogeneous width and independently calibrated control field Rabi frequency in both systems.

Conference Presentation

Citation Download Citation

Elizabeth Goldschmidt, Haoquan Fan, Kumel Kagalwala, and Alan Migdall "Electromagnetically induced transparency in solid-state atomic ensembles (Conference Presentation)", Proc. SPIE 10771, Quantum Communications and Quantum Imaging XVI, 107710G (6 November 2018); https://doi.org/10.1117/12.2319678

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KEYWORDS

Chemical species

Transparency

Solid state electronics

Hole burning spectroscopy

Laser optics

Optical pumping

Doppler effect

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