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http://hdl.handle.net/2289/3980Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Narayanan, Andal | - |
| dc.contributor.author | Hazra, Abheera | - |
| dc.contributor.author | Sandhya, S.N. | - |
| dc.date.accessioned | 2011-04-08T05:57:20Z | - |
| dc.date.available | 2011-04-08T05:57:20Z | - |
| dc.date.issued | 2010-10-12 | - |
| dc.identifier.citation | Journal of Physics B, 2010, Vol.43, p215502 | en |
| dc.identifier.issn | 0953-4075 | - |
| dc.identifier.issn | 1361-6455 (Online) | - |
| dc.identifier.uri | http://hdl.handle.net/2289/3980 | - |
| dc.description | Restricted Access. An open-access version is available at arXiv.org (one of the alternative locations) | en |
| dc.description.abstract | We experimentally study the absorption spectroscopy from a collection of gaseous 87Rb atoms at room temperature irradiated with three fields. Two of these fields are in a pump–probe saturation absorption configuration. The third field co-propagates with the pump field. The three fields address Zeeman degenerate transitions between hyperfine levels 5S1/2, F = 1 and 5P3/2, F = 0, F = 1 around the D2 line. We find a sub-natural absorption resonance in the counter-propagating probe field for equal detunings of all three fields. This absorption arises in conjunction with the appearance of increased transmission due to electro-magnetically induced transparency in the co-propagating fields. The novel feature of this absorption is its onset only for the blue of 5P3/2, F = 0, as the laser frequency is scanned through the excited states 5P3/2, F = 0, F = 1 and F = 2. The absorption rapidly rises to near maximum values within a narrow band of frequency near 5P3/2, F = 0. Our experimental results are compared with a dressed atom model. We find the threshold absorption to be a result of coherent interaction between the dressed states of our system. | en |
| dc.language.iso | en | en |
| dc.publisher | IOP Publishing Ltd. | en |
| dc.relation.uri | http://arxiv.org/abs/0906.5231 | en |
| dc.relation.uri | http://dx.doi.org/10.1088/0953-4075/43/21/215502 | en |
| dc.rights | 2010 IOP Publishing Ltd. | en |
| dc.title | Threshold nonlinear absorption in Zeeman transitions | en |
| dc.type | Article | en |
| Appears in Collections: | Research Papers (LAMP) | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 2010_JphyB_43_215502.pdf Restricted Access | Restricted Access | 713.45 kB | Adobe PDF | View/Open Request a copy |
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