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Chin. Phys. B, 2015, Vol. 24(1): 014204    DOI: 10.1088/1674-1056/24/1/014204
ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS Prev   Next  

Role of incoherent pumping and Er3+ ion concentration on subluminal and superluminal light propagation in Er3+-doped YAG crystal

Seyyed Hossein Asadpour, H. Rahimpour Soleimani
Department of Physics, University of Guilan, Rasht, Iran
Abstract  

We study the absorption-dispersion process and group index of weak probe field in a four-level Er3+:YAG crystal. We find that the Er3+ ion concentration and incoherent pumping field can influence the absorption-dispersion process and group index of weak probe field. Moreover, our results show that Er3+ ion concentration plays a major role in lasing without inversion and absorption with inversion.

Keywords:  Er3+ ion concentration      incoherent pumping field      superluminal  
Received:  21 May 2014      Revised:  19 June 2014      Accepted manuscript online: 
PACS:  42.50.-p (Quantum optics)  
  42.65.-k (Nonlinear optics)  
Corresponding Authors:  Seyyed Hossein Asadpour     E-mail:  s.hosein.asadpour@gmail.com

Cite this article: 

Seyyed Hossein Asadpour, H. Rahimpour Soleimani Role of incoherent pumping and Er3+ ion concentration on subluminal and superluminal light propagation in Er3+-doped YAG crystal 2015 Chin. Phys. B 24 014204

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