Phase-dependent properties for absorption and dispersion in a closed equispaced three-level ladder system


Autoria(s): Fan X.J.; Li A.Y.; Bu F.G.; Qiao H.X.; Du J.; 徐至展
Data(s)

2008

Resumo

It is shown that in a closed equispaced three-level ladder system, by controlling the relative phase of two applied coherent fields, the conversion from absorption with inversion to lasing without inversion (LWI) can be realized; a large index of the refraction with zero absorption can be gotten; considerable increasing of the spectrum region and value of the LWI gain can be achieved. Our study also reveals that the incoherent pumping will produce a remarkable effect oil the phase-dependent properties of the system. Modifying value of the incoherent pumping can change the property of the system from absorption to amplification and enhance significantly LWI gain. If the incoherent pumping is absent, we cannot get any gain for any value of the relative phase. (c) 2007 Elsevier GmbH. All rights reserved.

Natural Science Foundation of China [10675076]; Natural Science Foundation of Shandong Province [Y2006A21]; State Key Laboratory of High Field Laser Physics ; Shanghai Institute of Optics and Fine Mechanics ; Chinese Academy of Sciences

Identificador

http://ir.siom.ac.cn/handle/181231/478

http://www.irgrid.ac.cn/handle/1471x/9594

Idioma(s)

英语

Fonte

Fan X.J.;Li A.Y.;Bu F.G.;Qiao H.X.;Du J.;徐至展.,Optik,2008,119(11):540-544

Palavras-Chave #激光技术;激光物理与基本理论 #spontaneously generated coherence #relative phased #lasing without inversion #absorption #dispersion
Tipo

期刊论文