Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Giant nonlinear absorption and excited carrier dynamics of black phosphorus few-layer nanosheets in broadband spectra

Not Accessible

Your library or personal account may give you access

Abstract

Layered black phosphorus nanosheets (BPNs) offer potential uses in nanoelectronic and photonics applications. This work demonstrates giant saturable absorption (SA) and two-photon absorption (TPA) of BPNs under femtosecond visible-to-mid-infrared laser-pulse excitation. In addition, the excited carrier dynamics of BPNs were also studied with ultrafast pump-probe technology. Measurements demonstrated that the nonlinear absorption properties of BPNs strongly depend on excitation wavelength and intensity. BPNs moved from SA to TPA under increasing laser intensities at 800, 1160, 1300, and 1550 nm but showed a purely TPA response at 2000 nm, as gauged by measuring BPN nonlinear absorption coefficients. The BPNs showed broadband photon-induced absorption (PIA) signals from 470 to 700 nm, and the excited carrier recombination time was determined to be 150±10ps. The excitation intensity dependence of excited carrier dynamics were also studied.

© 2016 Optical Society of America

Full Article  |  PDF Article
More Like This
Broadband ultrafast nonlinear absorption and ultra-long exciton relaxation time of black phosphorus quantum dots

Runze Chen, Xin Zheng, and Tian Jiang
Opt. Express 25(7) 7507-7519 (2017)

Ultrafast nonlinear absorption and nonlinear refraction in few-layer oxidized black phosphorus

Shunbin Lu, Yanqi Ge, Zhengbo Sun, Zongyu Huang, Rui Cao, Chujun Zhao, Shuangchun Wen, Dianyuan Fan, Jianqing Li, and Han Zhang
Photon. Res. 4(6) 286-292 (2016)

Size-dependent saturable absorption and mode-locking of dispersed black phosphorus nanosheets

Saifeng Zhang, Xiaoyan Zhang, Hao Wang, Bohua Chen, Kan Wu, Kangpeng Wang, Damien Hanlon, Jonathan N. Coleman, Jianping Chen, Long Zhang, and Jun Wang
Opt. Mater. Express 6(10) 3159-3168 (2016)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved