演讲嘉宾-Eunezio Antonio De Souza

Eunezio Antonio De Souza
巴西MackGraphe
  Eunezio Antonio De Souza教授1986年从圣保罗大学(USP)获得了学士学位,1992年从坎皮纳斯大学(UNICAMP)获得理学博士学位,1992年至1995年,他在AT&T贝尔实验室的先进工程系进行博士后研究,参与了“高速光孤子交换”,“光电量子阱器件和光学图像处理”和“飞秒波分复用”等课题。
  1996年,他加入了巴西利亚大学,成为了一名物理学教授,在那里,他创立了光子学研究团队。2003年,他成为了麦肯齐大学的电气工程系教授,他主要研究是石墨烯光子和光通信的超快光源。
演讲题目:Ultrafast pulse generation by the use of 2D materials in fiber lasers
主题会场石墨烯战略前沿
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内容摘要

Since it was isolated in 2014 [1], graphene has attracted interest in many areas of science and technology due to its superlative properties. From the point of view of the interaction of light with matter, and specifically the aspects of light absorption, the phenomenon involving the saturation of the absorption has been explored by several groups. However, graphene is not alone, it is in fact the best-known and most studied material in a class with hundreds of two-dimensional materials whose properties have been much explored recently.
We will present the main advances we have obtained in the use of this new class of two-dimensional materials (such as graphene, graphene oxide (GO), reduced graphene oxide (r-GO), exfoliated graphite, rhenium disulfide (ReS2) and etc…)[2-5] to obtain ultrashort pulses in cavity lasers in the geometry of fiber. In particular, we focused on fiber lasers with Erbium as the active element due to the fact that its emission at 1550 nm is centered on the conventional C-band in optical communications.

[1] K. S. Novoselov, A. K. Geim, S. V. Morozov, D. Jiang, Y. Zhang, S. V. Dubonos, I. V. Grigorieva, A. A. Firsov, Science 306, 666 (2004).
[2] D. Steinberg, R.M. Gerosa, F. N. Pellicer, et al. Opt. Mat. Express. 8, 144 (2018)
[3] H. G. Rosa, D. Steinberg, J. D. Zapata, L. A. M. Saito, A. M. Cardenas, and E. A. Thoroh de Souza, J. Lightwave Technol. 33, 4118 (2015).
[4] J. D. Zapata, D. Steinberg, L. A. M. Saito, R. E. de Oliveira, A. M. Cárdenas, and E. A. de Souza, Sci. Rep. 6, 20644 (2016)
[5] E. J. Aiub, D. Steinberg, E. A. Thoroh de Souza, and L. A. M. Saito, Opt. Express 25, 10546 (2017).

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