Comment on 'Superluminal solitons in a {lambda}-type atomic system with two-folded levels'

doi:https://doi.org/10.1364/JOSAB.25.000951

Title: Comment on 'Superluminal solitons in a {lambda}-type atomic system with two-folded levels'

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Abstract

We show that the analysis of the optical solitons in a resonant, lifetime-broadened {lambda}-type atomic system with two-folded lower levels, given recently by D. Han et al. [J. Opt. Soc. Am. B 24, 2244 (2007)], is incorrect. Although in the anomalous dispersion regime near resonance one may obtain a superluminal optical soliton, such a soliton suffers serious absorption and hence cannot propagate a significant distance. However, by choosing appropriate system parameters to work in the normal dispersion regime and hence inside the transparency windows of double dark resonance, an ultraslow optical soliton with very low light intensity can form and propagate stably for a fairly long distance.

Authors:

Chao, Hang; Guoxiang, Huang ^[1]; Bin, Luo ^[2]

State Key Laboratory of Precision Spectroscopy and Department of Physics, East China Normal University, Shanghai 200062 (China)
Department of Physics and Information Science, Yulin Normal University, Yulin 537000, Guangxi (China)

Publication Date:: 2008-06-15

OSTI Identifier:: 21100302

Resource Type:: Journal Article

Journal Name:: Journal of the Optical Society of America. Part B, Optical Physics

Additional Journal Information:: Journal Volume: 25; Journal Issue: 6; Other Information: DOI: 10.1364/JOSAB.25.000951; (c) 2008 Optical Society of America; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0740-3224

Country of Publication:: United States

Language:: English

Subject:: 74 ATOMIC AND MOLECULAR PHYSICS; ABSORPTION; DISPERSIONS; LIFETIME; OPTICAL DISPERSION; PHOTON-ATOM COLLISIONS; RESONANCE; SOLITONS; SUPERRADIANCE; VISIBLE RADIATION

Citation Formats


                    Chao, Hang, Guoxiang, Huang, and Bin, Luo. Comment on 'Superluminal solitons in a {lambda}-type atomic system with two-folded levels'.  United States: N. p., 2008. 
        Web.  doi:10.1364/JOSAB.25.000951.

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                    Chao, Hang, Guoxiang, Huang, & Bin, Luo. Comment on 'Superluminal solitons in a {lambda}-type atomic system with two-folded levels'.  United States.  https://doi.org/10.1364/JOSAB.25.000951

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                    Chao, Hang, Guoxiang, Huang, and Bin, Luo. Sun .  
        "Comment on 'Superluminal solitons in a {lambda}-type atomic system with two-folded levels'".  United States.  https://doi.org/10.1364/JOSAB.25.000951.

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@article{osti_21100302,

  title        = {Comment on 'Superluminal solitons in a {lambda}-type atomic system with two-folded levels'},

  author       = {Chao, Hang and Guoxiang, Huang and Bin, Luo},

  abstractNote = {We show that the analysis of the optical solitons in a resonant, lifetime-broadened {lambda}-type atomic system with two-folded lower levels, given recently by D. Han et al. [J. Opt. Soc. Am. B 24, 2244 (2007)], is incorrect. Although in the anomalous dispersion regime near resonance one may obtain a superluminal optical soliton, such a soliton suffers serious absorption and hence cannot propagate a significant distance. However, by choosing appropriate system parameters to work in the normal dispersion regime and hence inside the transparency windows of double dark resonance, an ultraslow optical soliton with very low light intensity can form and propagate stably for a fairly long distance.},

  doi          = {10.1364/JOSAB.25.000951},

  url          = {https://www.osti.gov/biblio/21100302},
  journal      = {Journal of the Optical Society of America. Part B, Optical Physics},

  issn         = {0740-3224},

  number       = 6,

  volume       = 25,

  place        = {United States},

  year         = {2008},

  month        = {6}

}

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