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http://hdl.handle.net/2289/6776
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DC Field | Value | Language |
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dc.contributor.author | Ghosh, Megha | - |
dc.contributor.author | Karigowda, Asha | - |
dc.contributor.author | Jayaraman, Ayyappan | - |
dc.contributor.author | Bretenaker, Fabien | - |
dc.contributor.author | Sanders, Barry C | - |
dc.contributor.author | Narayanan, Andal | - |
dc.date.accessioned | 2017-10-27T07:57:29Z | - |
dc.date.available | 2017-10-27T07:57:29Z | - |
dc.date.issued | 2017-08 | - |
dc.identifier.citation | Journal of Physics B Atomic Molecular and Optical Physics, 2017, Vol.50, p165502 | en_US |
dc.identifier.issn | 0953-4075 | - |
dc.identifier.issn | 1361-6455 (Online) | - |
dc.identifier.uri | http://hdl.handle.net/2289/6776 | - |
dc.description | Restricted Access. | en_US |
dc.description.abstract | We present an experimental study of a Δ system in a room temperature, dilute sample of 85Rb atoms. A Δ system in the D2 manifold of 85Rb is formed by connecting the two lower hyperfine energy levels of a Λ system by a microwave drive field at 3.0357 GHz. We show that when the Rabi frequency of a microwave drive field exceeds that of the optical probe field, a three-wave mixing nonlinear interaction is established. This nonlinear interaction changes the enhanced transmission of the optical probe to a deep absorption for a relative phase difference of π between all the three fields. We establish through our experiment and our numerical simulation, the phase-sensitive and nonlinear nature of the Δ system's response to the applied microwave and optical fields. Using this feature, we demonstrate a high-contrast microwave phase controlled switch for the optical probe field. In comparison with intensity and phase switching demonstrated with all-optical fields so far, our experiment opens up the possibility of obtaining the highest contrast optical switching with room temperature atoms. | en_US |
dc.language.iso | en | en_US |
dc.publisher | IOP Publishing Ltd. | en_US |
dc.relation.uri | http://dx.doi.org/10.1088/1361-6455/aa8014 | en_US |
dc.rights | 2017 IOP Publishing Ltd. | en_US |
dc.subject | Coherent atomic-field interactions effects | en_US |
dc.subject | electromagnetically induced transparency | en_US |
dc.title | Demonstration of a high-contrast optical switching in an atomic Delta system. | en_US |
dc.type | Article | en_US |
Appears in Collections: | Research Papers (LAMP) |
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2017_JoPhyB_50_165502.pdf Restricted Access | Restricted Access | 438.31 kB | Adobe PDF | View/Open Request a copy |
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