Mechanism of large optical nonlinearity in gold nanoparticle films
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F18%3A00492625" target="_blank" >RIV/68378271:_____/18:00492625 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1364/OL.43.001455" target="_blank" >http://dx.doi.org/10.1364/OL.43.001455</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1364/OL.43.001455" target="_blank" >10.1364/OL.43.001455</a>
Alternative languages
Result language
angličtina
Original language name
Mechanism of large optical nonlinearity in gold nanoparticle films
Original language description
The Z-scan technique,using femtosecond(fs) laser pulses at 1480 nm laser pulses,was used to measure the nonlinear optical properties of gold(Au) nanoparticle(NP) films made by both nanosecond(ns) and fs pulsed laser deposition (PLD) in vacuum. At irradiance levels of 1 × 1012 Wm−2, the ns-PLD films displayed induced absorption with β 4 × 10−5 mW−1,and a negative lensing effect with n2 −4.7 × 10−11 m2 W−1 with somewhat smaller values for the fs-PLD films.These values of n2 imply an unphysically large change in the real part of the refractive index,demonstrating the need to take account of nonlinear changes of the Fresnel coefficients and multiple beam interference in Z-scan measurements on nanoscale films. Following this approach,the Z-scan observations were analyzed to determine the effective complex refractive index of the NP film at high irradiance.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10306 - Optics (including laser optics and quantum optics)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Optics Letters
ISSN
0146-9592
e-ISSN
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Volume of the periodical
43
Issue of the periodical within the volume
7
Country of publishing house
US - UNITED STATES
Number of pages
3
Pages from-to
1455-1458
UT code for WoS article
000428941300011
EID of the result in the Scopus database
2-s2.0-85044817084