Superluminal light attenuated by strong dispersion of complex refractive index

doi:10.1088/1674-1056/25/2/027801

Abstract The propagation of narrow packets of electromagnetic waves (EMWs) in frequency dispersive medium with the consideration of the complex refractive index is studied. It is shown that counting in the dispersion of the complex refractive index within the context of the conventional expression of the group velocity of narrow wave packets of EMWs propagating in a dispersive medium results in the appearance of additional constraints on the group velocity, which dictates that the physically acceptable group velocity can only be realized in the case of a negligible imaginary part of the group index. In this paper, the conditions that allow one to realize the physically acceptable group velocity are formulated and analyzed numerically for the relevant model of the refractive index of a system of two-level atoms in the optical frequency range. It is shown that in the frequency band where superluminal light propagation is expected, there is a strong dispersion of the refractive index that is accompanied with strong absorption, resulting in a strongly attenuated superluminal light.

Keywords: group velocity group index superluminal light slow waves

Received: 18 July 2015
Revised: 14 October 2015
Accepted manuscript online:

PACS:	78.20.Ci	(Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity))
	73.20.Mf	(Collective excitations (including excitons, polarons, plasmons and other charge-density excitations))

Corresponding Authors: Belayneh Mesfin Ali
E-mail: belaynehmes@yahoo.com

Cite this article:

Abdurahman Ahmed Yonis, Vadim Nickolaevich Mal'nev, Belayneh Mesfin Ali Superluminal light attenuated by strong dispersion of complex refractive index 2016 Chin. Phys. B 25 027801

[1]	Brillouin L 1960 Wave Propagation and Group Velocity (New York: Academic Press)
[2]	Stenner M D, Gauthier D J and Neifield M A 2003 Nature 425 695
[3]	Brunner N, Scarani V, Wegmuller M, Legre M and Gisin N 2004 Phys. Rev. Lett. 93 203902
[4]	Garrett C G B and McCumber D E 1970 Phys. Rev. A 1 305
[5]	Boyd R W and Gauthier D J 2002 Progress in Optics, (ed. Wolf E) (Amsterdam: Elsevier) Vol. 43, pp. 497-530
[6]	Milonni P W 2005 Fast Light, Slow Light, Left-Handed Light (Bristol and Philadelphia: Institute of Physics Publishing) pp. 35-67
[7]	Gauthier D J and Boyd R W 2007 Photonics Spectra 41 82
[8]	Chu S and Wong S 1982 Phys. Rev. Lett. 48 738
[9]	Wang L J, Kuzmich A and Dogariu A 2000 Nature 406 277
[10]	Schweinsberg A, Lepeskin N N, Bigelow M S, Boyd R W and Jarobo S 2006 Europhys. Lett. 73 218
[11]	Davidovich M V 2009 Physics-Uspekhi 52 415
[12]	Jackson J D 1999 Classical Electrodynamics (New York: John Wiley & Sons, Inc.) pp. 322-339
[13]	Tasgm M E 2012 arXiv: 1204.5460v1 [physics.optics]
[14]	Tanka H, Niurs H, Hayami K, Furue S, Nakayama K, Kohmoto T, Kunitomo M and Fukuda Y 2003 Phys. Rev. A 68 053801
[15]	Kai C, Long-An W, Yan-hua S 2004 Chin. Phys. Lett. 21 770
[16]	Ye D, Zheng G, Wang J, Wang Z, Qiao S, Huangfu J and Ran L 2013 Sci. Rep. 3 1628
[17]	Boyd R W 1992 Nonlinear Optics (San Diego: Academic Press) pp. 277-292

[1]	Dynamically tunable multiband plasmon-induced transparency effect based on graphene nanoribbon waveguide coupled with rectangle cavities system Zi-Hao Zhu(朱子豪), Bo-Yun Wang(王波云), Xiang Yan(闫香), Yang Liu(刘洋), Qing-Dong Zeng(曾庆栋), Tao Wang(王涛), and Hua-Qing Yu(余华清). Chin. Phys. B, 2022, 31(8): 084210.
[2]	Acoustic-electromagnetic slow waves in a periodical defective piezoelectric slab Xiao-juan Li(李小娟), Huan Ge(葛欢), Li Fan(范理), Shu-yi Zhang(张淑仪), Hui Zhang(张辉), Jin Ding(丁劲). Chin. Phys. B, 2017, 26(7): 074302.
[3]	Review on second-harmonic generation of ultrasonic guided waves in solid media (I):Theoretical analyses Wei-Bin Li(李卫彬), Ming-Xi Deng(邓明晰), Yan-Xun Xiang(项延训). Chin. Phys. B, 2017, 26(11): 114302.
[4]	Er³⁺ ion concentration effect on transient and steady-state behaviorin Er³⁺ ：YAG crystal Asadpour Seyyed Hossein, Rahimpour Soleimani H. Chin. Phys. B, 2014, 23(10): 104223.
[5]	Subluminal to superluminal light propagation in a V-type three-level atomic system interacting with squeezed vacuum Zhang Qin(张琴), Qu Guang-Hui(屈光辉), Tang Yuan-He(唐远河), Jin Kang(金康), and Ji Wei-Li(纪卫莉) . Chin. Phys. B, 2012, 21(2): 023201.
[6]	Controlling group velocity in a superconductive quantum circuit Qiu Tian-Hui (邱田会), Yang Guo-Jian (杨国建). Chin. Phys. B, 2012, 21(10): 104205.
[7]	Engineering the light propagating features through the two-dimensional coupled-cavity photonic crystal waveguides Feng Shuai(冯帅) and Wang Yi-Quan(王义全) . Chin. Phys. B, 2011, 20(5): 054209.
[8]	Control of slow light in a ring-out-ring structure Wang Nan(王楠), Zhang Yun-Dong(掌蕴东), and Yuan Ping(袁萍). Chin. Phys. B, 2011, 20(4): 044203.
[9]	The breaking point between fast- and slow-light in adegenerate two-level atomic system Li Lu-Ming(李路明), Hu Zhen-Yan(胡振燕 ), Luo Bin(罗斌), and Guo Hong(郭弘). Chin. Phys. B, 2010, 19(6): 064206.
[10]	Relationship between group velocity and symmetry of photonic crystals Ye Wei-Min(叶卫民), Luo Zhang(罗章), Yuan Xiao-Dong(袁晓东), and Zeng Chun(曾淳) . Chin. Phys. B, 2010, 19(5): 054215.
[11]	Absorption and slow light effect of pulsed light in a triple semiconductor quantum well Huang Zhong-Hua(黄忠华), Chen Ai-Xi(陈爱喜), Chen Zhao-Chu(陈召楚), and Deng Li(邓黎). Chin. Phys. B, 2010, 19(12): 124208.
[12]	Time-domain analysis of second-harmonic generation of primary Lamb wave propagation in an elastic plate Deng Ming-Xi(邓明晰) and Xiang Yan-Xun(项延训) . Chin. Phys. B, 2010, 19(11): 114302.
[13]	Ultraslow optical solitons in tunnel-coupled double semiconductor quantum well Chen Ai-Xi(陈爱喜), Xu Yan-Qiu(徐彦秋), Deng Li(邓黎), and Zhou Su-Yun(周素云). Chin. Phys. B, 2009, 18(4): 1528-1533.
[14]	Frequency bands of negative refraction in finite one-dimensional photonic crystals Chen Yuan-Yuan(陈园园), Huang Zhao-Ming(黄肇明), Shi Jie-Long(施解龙), Li Chun-Fang(李春芳), and Wang Qi(王奇). Chin. Phys. B, 2007, 16(1): 173-178.
[15]	Experimental investigation of slow light propagation in degenerate two-level system Wang Li-Rong (汪丽蓉), Zhao Yan-Ting (赵延霆), Ma Jie (马杰), Zhao Jian-Ming (赵建明), Xiao Lian-Tuan (肖连团), Jia Suo-Tang (贾锁堂). Chin. Phys. B, 2006, 15(2): 365-370.

No Suggested Reading articles found!

Viewed

Full text

Abstract

Cited

Metrics
Related Articles

Superluminal light attenuated by strong dispersion of complex refractive index

Cite this article:

Online attention