Monitoring the aspect ratio distribution of colloidal gold nanoparticles under pulsed-laser exposure

被引:5
作者
Mansour, Yehia [1 ]
Battie, Yann [1 ]
Naciri, Aotmane En [1 ]
Chaoui, Nouari [1 ]
机构
[1] Univ Lorraine, LCP A2MC, F-57000 Metz, France
关键词
Gold nanoparticles - Aspect ratio - Laser theory - Pulsed lasers;
D O I
10.1364/OE.399831
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We propose an advanced in situ extinction spectroscopy set up to investigate the dynamic of the fragmentation and reshaping processes of gold colloids during a ns-laser pulse exposure. The evolution of the aspect ratio distribution of gold nanorods (NRs) during the laser exposure is obtained by analyzing each spectra with the shape distributed effective medium theory. We demonstrate that the kinetics of NR shape transformation can be divided into two fluence regimes. At small fluence, the kinetic is limited by the NRs orientation, while at high fluence, the fragmentation rate is only limited by the probability of NRs to be located in the irradiated volume. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
引用
收藏
页码:34501 / 34515
页数:15
相关论文
共 33 条
[11]   Determination of the aspect ratio statistical distribution of gold nanorods in solution from a theoretical fit of the observed inhomogeneously broadened longitudinal plasmon resonance absorption spectrum [J].
Eustis, Susie ;
El-Sayed, Mostafa A. .
JOURNAL OF APPLIED PHYSICS, 2006, 100 (04)
[12]   Post-synthesis reshaping of gold nanorods using a femtosecond laser [J].
Gordel, Marta ;
Olesiak-Banska, Joanna ;
Matczyszyn, Katarzyna ;
Nogues, Claude ;
Buckle, Malcolm ;
Samoc, Marek .
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2014, 16 (01) :71-78
[13]   Nucleation and Growth of Metal Nanoparticles during Photoreduction Using In Situ Time-Resolved SAXS Analysis [J].
Harada, Masafumi ;
Tamura, Noriko ;
Takenaka, Mikihito .
JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (29) :14081-14092
[14]   In situ time-resolved XAFS analysis of silver particle formation by photoreduction in polymer solutions [J].
Harada, Masafumi ;
Inada, Yasuhiro ;
Nomura, Masaharu .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2009, 337 (02) :427-438
[15]   MNPBEM - A Matlab toolbox for the simulation of plasmonic nanoparticles [J].
Hohenester, Ulrich ;
Truegler, Andreas .
COMPUTER PHYSICS COMMUNICATIONS, 2012, 183 (02) :370-381
[16]   Optical excitation and detection of vapor bubbles around plasmonic nanoparticles [J].
Lapotko, Dmitri .
OPTICS EXPRESS, 2009, 17 (04) :2538-2556
[17]   Gold and silver nanoparticles in sensing and imaging: Sensitivity of plasmon response to size, shape, and metal composition [J].
Lee, Kyeong-Seok ;
El-Sayed, Mostafa A. .
JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (39) :19220-19225
[18]   Laser-induced shape changes of colloidal gold nanorods using femtosecond and nanosecond laser pulses [J].
Link, S ;
Burda, C ;
Nikoobakht, B ;
El-Sayed, MA .
JOURNAL OF PHYSICAL CHEMISTRY B, 2000, 104 (26) :6152-6163
[19]   How does a gold nanorod melt? [J].
Link, S ;
Wang, ZL ;
El-Sayed, MA .
JOURNAL OF PHYSICAL CHEMISTRY B, 2000, 104 (33) :7867-7870
[20]   Mechanisms and advanced photothermal modelling of laser-induced shape transformations of colloidal gold nanorods by nanosecond laser pulses [J].
Mansour, Yehia ;
Battie, Yann ;
Naciri, Aotmane En ;
Chaoui, Nouari .
NANOSCALE, 2019, 11 (24) :11679-11686