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  Negative refraction with tunable absorption in an active dense gas of atoms

Orth, P. P., Hennig, R., Keitel, C. H., & Evers, J. (2013). Negative refraction with tunable absorption in an active dense gas of atoms. New Journal of Physics, 15(1): 013027, pp. 1-18. doi:10.1088/1367-2630/15/1/013027.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-F52D-9 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-F52E-7
Genre: Journal Article

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0711.0303.pdf (Preprint), 326KB
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 Creators:
Orth, Peter Philipp1, Author              
Hennig, Roman1, Author
Keitel, Christoph H.1, Author              
Evers, Jörg1, Author              
Affiliations:
1Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society, ou_904546              

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Free keywords: Quantum Physics, quant-ph
 Abstract: Applications of negative index materials (NIM) presently are severely limited by absorption. Next to improvements of metamaterial designs, it has been suggested that dense gases of atoms could form a NIM with negligible losses. In such gases, the low absorption is facilitated by quantum interference. Here, we show that additional gain mechanisms can be used to tune and effectively remove absorption in a dense gas NIM. In our setup, the atoms are coherently prepared by control laser fields, and further driven by a weak incoherent pump field to induce gain. We employ nonlinear optical Bloch equations to analyze the optical response. Metastable Neon is identified as a suitable experimental candidate at infrared frequencies to implement a lossless active negative index material.

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 Dates: 2007-11-022012-10-172013-01-15
 Publication Status: Published online
 Pages: 10 pages, 9 figures
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: arXiv: 0711.0303
DOI: 10.1088/1367-2630/15/1/013027
URI: http://arxiv.org/abs/0711.0303
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Title: New Journal of Physics
  Other : New J. Phys.
Source Genre: Journal
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Publ. Info: Bristol, UK : Institute of Physics Pub.
Pages: - Volume / Issue: 15 (1) Sequence Number: 013027 Start / End Page: 1 - 18 Identifier: ISSN: 1367-2630
CoNE: https://pure.mpg.de/cone/journals/resource/954926913666