Negative refraction with absorption suppressed by electromagnetically induced transparency in a left-handed atomic system
This paper intends to realize negative refraction with absorption suppressed by the electromagnetically induced transparency （EIT） in a dense four-level atomic system. Without the two equal transition frequencies responding to the probe field, the atomic system displays a negative refraction with th...
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| Veröffentlicht in: | Science China. Physics, mechanics & astronomy mechanics & astronomy, 2012-02, Vol.55 (2), p.213-218 |
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| container_title | Science China. Physics, mechanics & astronomy |
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| creator | Zhao, ShunCai |
| description | This paper intends to realize negative refraction with absorption suppressed by the electromagnetically induced transparency （EIT） in a dense four-level atomic system. Without the two equal transition frequencies responding to the probe field, the atomic system displays a negative refraction with the simultaneously negative permittivity and negative permeability （left-handedness）. The response of the probe field is amplified and propagates transparency in some frequency extents. Therefore, our aim for searching the low-loss negative refraction can be achieved in the scheme, given the main applied limitation of the negative refractive materials is the large amount of dissipation and absorption. However, an excessive signal field intensity would increase the absorption near the resonance in our scheme. |
| doi_str_mv | 10.1007/s11433-011-4622-4 |
| format | Article |
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Without the two equal transition frequencies responding to the probe field, the atomic system displays a negative refraction with the simultaneously negative permittivity and negative permeability （left-handedness）. The response of the probe field is amplified and propagates transparency in some frequency extents. Therefore, our aim for searching the low-loss negative refraction can be achieved in the scheme, given the main applied limitation of the negative refractive materials is the large amount of dissipation and absorption. However, an excessive signal field intensity would increase the absorption near the resonance in our scheme.</description><identifier>ISSN: 1674-7348</identifier><identifier>EISSN: 1869-1927</identifier><identifier>DOI: 10.1007/s11433-011-4622-4</identifier><language>eng</language><publisher>Heidelberg: SP Science China Press</publisher><subject>Absorption ; Amplification ; Astronomy ; China ; Classical and Continuum Physics ; Dielectric constant ; Displays ; Dissipation ; Observations and Techniques ; Permittivity ; Physics ; Physics and Astronomy ; Refraction ; Transparency ; 共振吸收 ; 原子系统 ; 左手 ; 电磁感应透明 ; 电磁诱导透明 ; 负介电常数 ; 负折射率材料 ; 频率范围</subject><ispartof>Science China. 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Physics, mechanics & astronomy</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhao, ShunCai</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Negative refraction with absorption suppressed by electromagnetically induced transparency in a left-handed atomic system</atitle><jtitle>Science China. Physics, mechanics & astronomy</jtitle><stitle>Sci. China Phys. Mech. Astron</stitle><addtitle>SCIENCE CHINA Physics, Mechanics ＆ Astronomy</addtitle><date>2012-02-01</date><risdate>2012</risdate><volume>55</volume><issue>2</issue><spage>213</spage><epage>218</epage><pages>213-218</pages><issn>1674-7348</issn><eissn>1869-1927</eissn><abstract>This paper intends to realize negative refraction with absorption suppressed by the electromagnetically induced transparency （EIT） in a dense four-level atomic system. Without the two equal transition frequencies responding to the probe field, the atomic system displays a negative refraction with the simultaneously negative permittivity and negative permeability （left-handedness）. The response of the probe field is amplified and propagates transparency in some frequency extents. Therefore, our aim for searching the low-loss negative refraction can be achieved in the scheme, given the main applied limitation of the negative refractive materials is the large amount of dissipation and absorption. However, an excessive signal field intensity would increase the absorption near the resonance in our scheme.</abstract><cop>Heidelberg</cop><pub>SP Science China Press</pub><doi>10.1007/s11433-011-4622-4</doi><tpages>6</tpages></addata></record> |
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| subjects | Absorption Amplification Astronomy China Classical and Continuum Physics Dielectric constant Displays Dissipation Observations and Techniques Permittivity Physics Physics and Astronomy Refraction Transparency 共振吸收 原子系统 左手 电磁感应透明 电磁诱导透明 负介电常数 负折射率材料 频率范围 |
| title | Negative refraction with absorption suppressed by electromagnetically induced transparency in a left-handed atomic system |
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