TY - JOUR
T1 - Nonlocal nonlinear refractive index of gold nanoparticles synthesized by ascorbic acid reduction
T2 - Comparison of fitting models
AU - Balbuena Ortega, A.
AU - Arroyo Carrasco, M. L.
AU - Méndez Otero, M. M.
AU - Gayou, V. L.
AU - Delgado Macuil, R.
AU - Martínez Gutiérrez, H.
AU - Iturbe Castillo, M. D.
N1 - Publisher Copyright:
© 2014 © 2014 The Author(s). Published by Taylor & Francis.
PY - 2014/12/12
Y1 - 2014/12/12
N2 - In this paper, the nonlinear refractive index of colloidal gold nanoparticles under continuous wave illumination is investigated with the z-scan technique. Gold nanoparticles were synthesized using ascorbic acid as reductant, phosphates as stabilizer and cetyltrimethylammonium chloride (CTAC) as surfactant agent. The nanoparticle size was controlled with the CTAC concentration. Experiments changing incident power and sample concentration were done. The experimental z-scan results were fitted with three models: thermal lens, aberrant thermal lens and the nonlocal model. It is shown that the nonlocal model reproduces with exceptionally good agreement; the obtained experimental behaviour.
AB - In this paper, the nonlinear refractive index of colloidal gold nanoparticles under continuous wave illumination is investigated with the z-scan technique. Gold nanoparticles were synthesized using ascorbic acid as reductant, phosphates as stabilizer and cetyltrimethylammonium chloride (CTAC) as surfactant agent. The nanoparticle size was controlled with the CTAC concentration. Experiments changing incident power and sample concentration were done. The experimental z-scan results were fitted with three models: thermal lens, aberrant thermal lens and the nonlocal model. It is shown that the nonlocal model reproduces with exceptionally good agreement; the obtained experimental behaviour.
KW - gold nanoparticles
KW - nonlocal nonlinear response
KW - z-scan
UR - http://www.scopus.com/inward/record.url?scp=84913583486&partnerID=8YFLogxK
U2 - 10.1080/09500340.2014.950621
DO - 10.1080/09500340.2014.950621
M3 - Artículo
SN - 0950-0340
VL - 61
SP - S68-S73
JO - Journal of Modern Optics
JF - Journal of Modern Optics
ER -