Filamentation and coalescence of singular optical pulses in narrow-gap semiconductors and modeling of self-organization of vortex solitons using two-photon absorption

V. Skarka; N. B. Aleksic; M. Derbazi; V. I. Berezhiani

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Filamentation and coalescence of singular optical pulses in narrow-gap semiconductors and modeling of self-organization of vortex solitons using two-photon absorption

机译：窄间隙半导体中奇异光脉冲的细丝化和聚结以及使用双光子吸收的涡旋孤子自组织模型

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Short intense laser pulses with phase singularity propagating in narrow-gap semiconductors are modeled. The saturating nonlinearity is a prerequisite for self-organization of pulses into solitons. The cubic-quintic saturation appears due to the conduction-band nonparabolicity in synergy with the free carriers excitation through two-photon absorption. The pulse stability analyzed using Lyapunov's method is confirmed by numerical simulations. Depending of its power, a singular Gaussian pulse far from equilibrium either filaments or subsequently coalesces evolving toward vortex soliton. Above breaking power, such a vortex soliton resists to azimuthal symmetry-breaking perturbations.

机译：对在窄间隙半导体中传播的具有相异点的短强激光脉冲进行了建模。饱和非线性是将脉冲自组织成孤子的先决条件。由于传导带非抛物线性与通过双光子吸收的自由载流子协同作用，出现了立方五次饱和。通过数值模拟证实了使用李雅普诺夫方法分析的脉冲稳定性。取决于其功率，奇异的高斯脉冲远未达到平衡，或者是细丝，或者随后逐渐趋于涡旋孤子的聚结。在破坏力之上，这样的涡旋孤子抵抗方位对称破坏扰动。

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来源
《Physical review》 |2010年第3期|035202.1-035202.7|共7页
作者
V. Skarka; N. B. Aleksic; M. Derbazi; V. I. Berezhiani;
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作者单位

Laboratoire POMA, CNRS FRE 2988, Universite d'Angers, 2 Boulevard Lavoisier, 49045 Angers Cedex 1, Frame;

Institute of Physics, Pregrevica 118, 11000 Belgrade, Serbia;

Laboratoire POMA, CNRS FRE 2988, Universite d'Angers, 2 Boulevard Lavoisier, 49045 Angers Cedex 1, Frame;

Andronikashvili Institute of Physics and Javakhishvili Tbilisi State University, Tbilisi, Georgia;

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正文语种 eng
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other nonlinear optical materials; photorefractive and semiconductor materials; optical solitons; nonlinear guided waves;

机译：其他非线性光学材料;光折变和半导体材料;光学孤子非线性导波;

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3. Energy limits imposed by two-photon absorption for pulse ampliﬁcation in high-power semiconductor optical ampliﬁers [J] . Faisal R. Ahmad Yen Wei Tseng Mikhail A. Kats and Farhan Rana Optics Letters . 2008,第10期

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4. Propagation, Filamentation, and Coalescence of Singular Optical Pulses in Air [C] . V. Skarka, N. B. Aleksic, V. I. Berezhiani SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference . 2007

机译：空气中奇异光学脉冲的繁殖，丝状和聚结
5. Two-photon absorption in semiconductors for coherent control of photocurrent ratios and femtosecond pulse characterization. [D] . Chung, Jung-Ho. 2005

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6. Optical soliton in dielectric fibers and self-organization ofturbulence in plasmas in magnetic fields [O] . Akira Hasegawa 2009

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7. Filamentation and coalescence of singular optical pulses in narrow-gap semiconductors and modeling of self-organization of vortex solitons using two-photon absorption [O] . V. Skarka, N.B. Aleksić, M. Derbazi, 2010

机译：窄间隙半导体中奇异光脉冲的丝裂和聚结以及利用双光子吸收的涡旋孤子自组织模型

Filamentation and coalescence of singular optical pulses in narrow-gap semiconductors and modeling of self-organization of vortex solitons using two-photon absorption

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