中国物理B ›› 2008, Vol. 17 ›› Issue (7): 2539-2543.doi: 10.1088/1674-1056/17/7/033

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Temporal development of open-circuit bright photovoltaic solitons

张彦鹏1, 卢克清2, 刘雪明2, 张磊3, 张美志3   

  1. (1)Department of Electronic Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China; (2)State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academic of Sciences, Xi'an 710119, China; (3)State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academic of Sciences, Xi'an 710119, China;Graduate School of Chinese Academy of Science, Beijing 100039, China
  • 收稿日期:2007-10-08 修回日期:2007-12-25 出版日期:2008-07-09 发布日期:2008-07-09
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10674176).

Temporal development of open-circuit bright photovoltaic solitons

Zhang Lei(张磊)a)b)†, Lu Ke-Qing(卢克清)a), Zhang Mei-Zhi(张美志)a)b), Liu Xue-Ming(刘雪明)a), and Zhang Yan-Peng (张彦鹏)c)   

  1. a State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academic of Sciences, Xi'an 710119, China; b Graduate School of Chinese Academy of Science, Beijing 100039, China; c Department of Electronic Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
  • Received:2007-10-08 Revised:2007-12-25 Online:2008-07-09 Published:2008-07-09
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10674176).

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摘要： This paper investigates the temporal behaviour of open-circuit bright photovoltaic spatial solitons by using numerical techniques. It shows that when the intensity ratio of the soliton, the ratio between the soliton peak intensity and the dark irradiance, is small, the quasi-steady-state soliton width decreases monotonically with the increase of $\tau $, where $\tau $ is the parameter correlated with the time, that when the intensity ratio of the soliton is big, the quasi-steady-state soliton width decreases with the increase of $\tau $ and then increases with $\tau $, and that the formation time of the steady-state solitons is not correlated with the intensity ratio of the soliton. It finds that the local nonlinear effect increases with the photovoltaic field, which behaves as that the width of soliton beams is small and the self-focusing quasi-period is short. On the other hand, we also discuss that both the time and the temperature have an effect on the beam bending.

关键词: nonlinear optics, photovoltaic effect, temporal behaviour, temperature

Abstract: This paper investigates the temporal behaviour of open-circuit bright photovoltaic spatial solitons by using numerical techniques. It shows that when the intensity ratio of the soliton, the ratio between the soliton peak intensity and the dark irradiance, is small, the quasi-steady-state soliton width decreases monotonically with the increase of $\tau $, where $\tau $ is the parameter correlated with the time, that when the intensity ratio of the soliton is big, the quasi-steady-state soliton width decreases with the increase of $\tau $ and then increases with $\tau $, and that the formation time of the steady-state solitons is not correlated with the intensity ratio of the soliton. It finds that the local nonlinear effect increases with the photovoltaic field, which behaves as that the width of soliton beams is small and the self-focusing quasi-period is short. On the other hand, we also discuss that both the time and the temperature have an effect on the beam bending.

Key words: nonlinear optics, photovoltaic effect, temporal behaviour, temperature

中图分类号:  (Optical solitons; nonlinear guided waves)

  • 42.65.Tg
42.65.Jx (Beam trapping, self-focusing and defocusing; self-phase modulation) 42.65.Pc (Optical bistability, multistability, and switching, including local field effects) 72.40.+w (Photoconduction and photovoltaic effects)