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author:

Zhan, Yi (Zhan, Yi.) [1] | Wang, Yimeng (Wang, Yimeng.) [2] | Long, Jinlin (Long, Jinlin.) [3] (Scholars:龙金林) | Zu, Jifeng (Zu, Jifeng.) [4] | Wang, Li (Wang, Li.) [5] | Wang, Congcong (Wang, Congcong.) [6] | Qu, Ting (Qu, Ting.) [7] | Liu, Qian (Liu, Qian.) [8]

Indexed by:

EI Scopus SCIE

Abstract:

Copper(II) chalcogenide nanocrystals, including Cu2-xY (Y = S, Se, and Te), have an intense localized surface plasmon resonance (LSPR) band in the near-infrared (NIR) region. In this research, colloidal Cu2-xSe@Cu2-xS nanorods were synthesized using the organometallic colloidal and cation-exchange methods. The dynamics of LSPR were investigated using ultrafast laser pulses via pump-probe experiments in the NIR region. Investigation of the transient absorption spectra revealed an LSPR spectral band from approximately 850 to 1350 nm, with a center wavelength of 1030 nm. The kinetics of the recovering plasmon maximum, probed at the peak wavelength of 1030 nm, exhibited a strong nonlinear response for plasmonic absorption, with a modulation depth exceeding 25% in the transmitted signal under a pump fluence of 3.97 mJ/cm(2). The ultrafast nonlinear optical properties of these plasmonic nanoparticles could be used as excellent saturable absorbers (SAs) in ultrafast lasers. A compact passively Q-switched Yb3+: YAG microchip laser with a Cu2-xSe@Cu2-xS SA was investigated. Furthermore, a maximum average output power of 187 mW was obtained, with a pulse energy of 4.11 mu J, pulse duration of 8.5 mu s, and repetition rate of 45.45 KHz at a pump power of 8.7 W. (C) 2017 Optical Society of America

Keyword:

Community:

  • [ 1 ] [Zhan, Yi]Qufu Normal Univ, Coll Engn, Jining 273100, Shandong, Peoples R China
  • [ 2 ] [Wang, Congcong]Qufu Normal Univ, Coll Engn, Jining 273100, Shandong, Peoples R China
  • [ 3 ] [Qu, Ting]Qufu Normal Univ, Coll Engn, Jining 273100, Shandong, Peoples R China
  • [ 4 ] [Liu, Qian]Qufu Normal Univ, Coll Engn, Jining 273100, Shandong, Peoples R China
  • [ 5 ] [Wang, Yimeng]Beijing Univ Technol, Inst Informat Photon Technol, Beijing 100124, Peoples R China
  • [ 6 ] [Wang, Li]Beijing Univ Technol, Inst Informat Photon Technol, Beijing 100124, Peoples R China
  • [ 7 ] [Long, Jinlin]Fuzhou Univ, Sch Chem, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350116, Peoples R China
  • [ 8 ] [Zu, Jifeng]Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China

Reprint 's Address:

  • [Zhan, Yi]Qufu Normal Univ, Coll Engn, Jining 273100, Shandong, Peoples R China

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Source :

OPTICS LETTERS

ISSN: 0146-9592

Year: 2017

Issue: 13

Volume: 42

Page: 2619-2622

3 . 5 8 9

JCR@2017

3 . 1 0 0

JCR@2023

ESI Discipline: PHYSICS;

ESI HC Threshold:170

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 1

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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