Efficient Nonlinear Frequency Conversion in an All-Resonant Double-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="italic">Λ</mml:mi></mml:math>System

Merriam, Andrew J.; Sharpe, Scott J.; Shverdin, M. Y.; Manuszak, D.; Yin, G. Y.; Harris, S. E.

doi:10.1103/physrevlett.84.5308

Cited by 177 publications

(107 citation statements)

References 23 publications

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“…Applications of closed-loop configurations to nonlinear optics have featured double-Λ systems where two stable or metastable states are -each-coupled to two common excited states. A rich variety of nonlinear optical phenomena has been predicted [11,13,14] and experimentally observed [2,5,6,15,16,17,18,19]. In [19], in particular, it has been shown experimentally that the properties of closed-loop configurations can be used to correlate electromagnetic fields with carrier frequency differences beyond the GHz regime.…”

Section: Introductionmentioning

confidence: 99%

Phase-dependent light propagation in atomic vapors

et al. 2007

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Light propagation in an atomic medium whose coupled energy levels form a ♦-configuration exhibits a critical dependence on the input conditions. Depending on the relative phase of the input light fields, the response of the medium can be dramatically modified and switch from opaque to semi-transparent. These different types of behaviour are caused by the formation of coherences due to interference in the atomic excitations. Alkali-earth atoms with zero nuclear spin are ideal candidates for observing these phenomena which could offer new perspectives in control techniques in quantum electronics.

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Section: Introductionmentioning

confidence: 99%

Phase-dependent light propagation in atomic vapors

et al. 2007

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“…when a set of atomic states is (quasi-) resonantly coupled by laser fields, such that each state of the set is connected to any other via two different paths of coherent photon-scattering: In this case, the relative phase Φ between the transitions determines the interference and hence critically influences the dynamics and steady state of the system [3,4,5]. Previous studies of closed-loop configurations often featured double-Λ systems, where two stable or metastable states are -each-coupled to two common excited states [5,6,7,8]. These works have shown a rich variety of non-linear optical phenomena.…”

Section: Introductionmentioning

confidence: 99%

Phase-dependent interaction in a four-level atomic configuration

2002

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We study a four-level atomic scheme interacting with four lasers in a closed-loop configuration with a ♦ (diamond) geometry. We investigate the influence of the laser phases on the steady state. We show that, depending on the phases and the decay characteristic, the system can exhibit a variety of behaviors, including population inversion and complete depletion of an atomic state. We explain the phenomena in terms of multi-photon interference. We compare our results with the phasedependent phenomena in the double-Λ scheme, as studied in [Korsunsky and Kosachiov, Phys. Rev A 60, 4996 (1999)]. This investigation may be useful for developing non-linear optical devices, and for the spectroscopy and laser-cooling of alkali-earth atoms.

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“…This allows a nearresonant probe field to experience extreme nonlinearities, while simultaneously using a second coupling field to cancel the associated absorption [1,2]. Applications include nonlinear optics at low light levels [3,4,5,6], full frequency conversion in distances so short that phase matching is not relevant [7,8,9], and quantum information storage [10,11].…”

Section: Introductionmentioning

confidence: 99%