Third-order nonlinear optical response and optical limiting of colloidal carbon dots

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F14%3A33151725" target="_blank" >RIV/61989592:15310/14:33151725 - isvavai.cz</a>

Result on the web

<a href="http://www.opticsinfobase.org/oe/fulltext.cfm?uri=oe-22-10-12013&id=284549" target="_blank" >http://www.opticsinfobase.org/oe/fulltext.cfm?uri=oe-22-10-12013&id=284549</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1364/OE.22.012013" target="_blank" >10.1364/OE.22.012013</a>

Result language

angličtina

Original language name

Third-order nonlinear optical response and optical limiting of colloidal carbon dots

Original language description

In this work, the nonlinear optical response of some organophilic and hydrophilic carbon dots derived from gallate precursors is studied under 4 ns and 35 ps, visible (532 nm) and infrared (1064 nm) laser excitation conditions by the Z-scan technique. The prepared carbon dots were found to exhibit considerable nonlinear optical response in the visible, the organophilic ones exhibiting stronger response in the infrared and, in general, significantly larger response than their hydrophilic counterparts. Inall cases, the corresponding nonlinear optical parameters have been determined. In particular, it was found that both carbon dots exhibited important negative nonlinear refractivity, under all excitation conditions tried, corresponding to self-defocusing, while negligible nonlinear absorption was found in the ps regime. Oppositely, both types of carbon dots were found to exhibit sizeable nonlinear absorption under ns excitation, indicating their potential for optical limiting applicatio

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BH - Optics, masers and lasers

OECD FORD branch

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Project

<a href="/en/project/ED2.1.00%2F03.0058" target="_blank" >ED2.1.00/03.0058: Regional Centre of Advanced Technologies and Materials</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2014

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Optics Express

ISSN

1094-4087

e-ISSN

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Volume of the periodical

22

Issue of the periodical within the volume

10

Country of publishing house

US - UNITED STATES

Number of pages

15

Pages from-to

12013-12027

UT code for WoS article

000336957700062

EID of the result in the Scopus database

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