Atom trapping and spectroscopy in cavity-generated optical potentials

Chen, Yun Jhih; Zigo, Stefan; Raithel, Georg

doi:10.1103/physreva.89.063409

Cited by 16 publications

(13 citation statements)

References 47 publications

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“…Unfortunately, these systems are experimentally demanding due to the need of ultra-high-reflectivity coatings and sophisticated techniques to trap single atoms in these short cavities. However, the notion that short cavities with high finesse are inevitable has been challenged by efforts to use a particular cavity geometry, a (near-)concentric cavity, to implement cavity QED with long cavities of low finesse [6][7][8][9][10][11][12][13]. A cavity is concentric when the separation of the two mirrors l cav matches twice the radius of curvature of the mirrors R C .…”

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Single atoms coupled to a near-concentric cavity

et al. 2017

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Concentric cavities can lead to strong photon-atom coupling without a need for high finesse or small physical-cavity volume. In a proof-of-principle experiment of this concept we demonstrate coupling of single Rb atoms to a 11mm long near-concentric cavity with a finesse F=138(2). Operating the cavity 1.65(1)$\mu$m shorter than the critical length, we observe an atom-cavity coupling constant $g_0=2\pi \times 5.0(2)\,$MHz which exceeds the natural dipole decay rate $\gamma$ by a factor $g_0/\gamma=1.7(1)$.Comment: 5 pages, 4 figure

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Single atoms coupled to a near-concentric cavity

et al. 2017

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“…In possible future experimental work, an ultra-deep Rydberg-atom lattice with a depth of 2V 0 = h × 3 GHz, as considered in this section, could be achieved by focusing two counter-propagating laser beams, each with a power of 200 W, into a confocal spot with w 0 = 20 µm. Such a lattice can be prepared, for instance, by using a near-concentric field enhancement cavity [40], with the Rydberg atoms loaded into the focal spot of the cavity.…”

Section: A An Implementation Of a Strong Optical Latticementioning

confidence: 99%

Photoionization of Rydberg Atoms in Optical Lattices

Cardman,

MacLennan,

Anderson

et al. 2021

Preprint

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We develop a formalism for photoionization (PI) and potential energy curves (PECs) of Rydberg atoms in ponderomotive optical lattices and apply it to examples covering several regimes of the optical-lattice depth. The effect of lattice-induced PI on Rydberg-atom lifetime ranges from noticeable to highly dominant when compared with natural decay. The PI behavior is governed by the generally rapid decrease of the PI cross sections as a function of angular-momentum ( ), and by lattice-induced -mixing across the optical-lattice PECs. In GHz-deep lattices, -mixing leads to a rich PEC structure, and the significant low-PI cross sections are distributed over many latticemixed Rydberg states. In lattices less than several tens-of-MHz deep, atoms on low-PECs are essentially -mixing-free and maintain large PI cross sections, while atoms on high-PECs trend towards being PI-free. Characterization of PI in GHz-deep Rydberg-atom lattices may be beneficial for optical control and quantum-state manipulation of Rydberg atoms, while data on PI in shallower lattices are potentially useful in high-precision spectroscopy and quantum-computing applications of lattice-confined Rydberg atoms.

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“…1. We load 85 Rb atoms from a MOT, initially prepared in the F = 3 ground-state hyperfine level, into the near-perfect TEM 00 mode of a near-concentric field-enhancement cavity with a finesse of ≈ 600 at λ = 1064 nm [27][28][29]. After loading, the lattice is adiabatically ramped to a maximum depth of ∼ 10 5 E r , where E r = h × 2.076 kHz is the photon recoil for 85 Rb at 1064 nm.…”

Section: Simulationmentioning

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AC polarizability and photoionization cross-section measurements in an optical lattice

Cardman,

Han,

MacLennan

et al. 2021

Preprint

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Atom trapping and spectroscopy in cavity-generated optical potentials

Cited by 16 publications

References 47 publications

Single atoms coupled to a near-concentric cavity

Single atoms coupled to a near-concentric cavity

Photoionization of Rydberg Atoms in Optical Lattices

AC polarizability and photoionization cross-section measurements in an optical lattice

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