Femtosecond laser trapping dynamics of two-photon absorbing hollow-core nanoparticles

被引：6

作者：

Gong, Liping ^{[1
]}

Zhang, Xiaohe ^{[1
]}

Zhu, Zhuqing ^{[2
]}

Rui, Guanghao ^{[1
]}

He, Jun ^{[3
]}

Cui, Yiping ^{[1
]}

Gu, Bing ^{[1
,4
]}

机构：

[1] Southeast Univ, Adv Photon Ctr, Nanjing 210096, Peoples R China

[2] Nanjing Normal Univ, Sch Phys Sci & Technol, Key Lab Optoelect Technol Jiangsu Prov, Nanjing 210023, Peoples R China

[3] Cent South Univ, Sch Phys & Elect, Changsha 410012, Peoples R China

[4] Shandong Normal Univ, Collaborat Innovat Ctr Light Manipulat & Applicat, Jinan 250358, Peoples R China

来源：

CHINESE OPTICS LETTERS | 2020年 / 18卷 / 08期

基金：

中国国家自然科学基金;

关键词：

laser trapping; multiphoton processes; ultrafast nonlinear optics; QUANTUM DOTS; PARTICLES; SPHERES; FORCES; NONLINEARITIES; MICROPARTICLES; SHELL; WAVE; CDTE;

D O I：

10.3788/COL202018.081901

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We investigate femtosecond laser trapping dynamics of two-photon absorbing hollow-core nanoparticles with different volume fractions and two-photon absorption (TPA) coefficients. Numerical simulations show that the hollow-core particles with low and high-volume fractions can easily be trapped and bounced by the tightly focused Gaussian laser pulses, respectively. Further studies show that the hollow-core particles with and without TPA can be identified, because the TPA effect enhances the radiation force, and subsequently the longitudinal force destabilizes the trap by pushing the particle away from the focal point. The results may find direct applications in particle sorting and characterizing the TPA coefficient of single nanoparticles.

引用

页数：6

共 50 条

[21] Two-photon absorption of femtosecond laser pulses in GaS crystals
Allakhverdiev, KR
OPTICS COMMUNICATIONS, 1998, 149 (1-3) : 64 - 66
[22] Refractive femtosecond laser beam shaping for two-photon polymerization
Winfield, R. J.
Bhuian, B.
O'Brien, S.
Crean, G. M.
APPLIED PHYSICS LETTERS, 2007, 90 (11)
[23] Optical microstructures fabricated by femtosecond laser two-photon polymerization
Luo, L
Li, CD
Wang, SF
Huang, WT
Wu, CY
Yang, H
Jiang, HB
Gong, QH
Yang, YY
Feng, SJ
JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS, 2001, 3 (06): : 489 - 492
[24] Two-photon polymerization of gratings by interference of a femtosecond laser pulse
Guo, HC
Jiang, HB
Luo, L
Wu, CY
Guo, HC
Wang, X
Yang, H
Gong, QH
Wu, FP
Wang, T
Shi, MQ
CHEMICAL PHYSICS LETTERS, 2003, 374 (3-4) : 381 - 384
[25] Two-photon absorption imaging with shaped femtosecond laser pulses
Warren, WS
Miller, A
Wagner, W
Ye, T
Fischer, M
Yurtsever, G
ULTRAFAST PHENOMENA XIV, 2005, 79 : 867 - 869
[26] Two-photon absorption flexible photodetector responsive to femtosecond laser
Xu, Yanming
Wang, Fan
Xu, Jinlong
Lv, Xinjie
Zhao, Gang
Sun, Zhihua
Xie, Zhenda
Zhu, Shining
OPTICS EXPRESS, 2024, 32 (03) : 4334 - 4345
[27] Miniaturized probe for femtosecond laser microsurgery and two-photon imaging
Hoy, Christopher L.
Durr, Nicholas J.
Chen, Pengyuan
Piyawattanametha, Wibool
Ra, Hyejun
Solgaard, Olav
Ben-Yakar, Adela
OPTICS EXPRESS, 2008, 16 (13): : 9996 - 10005
[28] Study on the microfabrication technique by femtosecond laser two-photon photopolymerization
Zhou, M.
Yang, H. F.
Kong, J-J.
Yan, F.
Cai, L.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2008, 200 (1-3) : 158 - 162
[29] Two-photon microscopy with a 1064 nm femtosecond fiber laser
Lecourt, Jean-Bernard
Gognau, Alexandre
Hernandez, Yves
FIBER LASERS AND GLASS PHOTONICS: MATERIALS THROUGH APPLICATIONS, 2018, 10683
[30] Uniform silica nanoparticles encapsulating two-photon absorbing fluorescent dye
Wu, Wei-Bing
Liu, Chang
Wang, Ming-Liang
Huang, Wei
Zhou, Sheng-Rui
Jiang, Wei
Sun, Yue-Ming
Cui, Yi-Ping
Xu, Chun-Xinag
JOURNAL OF SOLID STATE CHEMISTRY, 2009, 182 (04) : 862 - 868

← 1 2 3 4 5 →