Publication: Nonlinear photoacoustic response of suspensions of laser-synthesized plasmonic titanium nitride nanoparticles
Дата
2020
Авторы
Maldonado, M. E.
Das, A.
Gomes, A. S. L.
Popov, A. A.
Klimentov, S. M.
Kabashin, A. V.
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Volume Title
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Аннотация
© 2020 Optical Society of AmericaA nonlinear photoacoustic (PA) response from solutions of 40 nm plasmonic titanium nitride nanoparticles (NPs) synthesized by laser ablation in a liquid environment (acetone) is reported. Using a photoacoustic Z-scan with 5 ns pumping pulses, values of effective nonlinear absorption (NLA) coefficients βPA,eff were measured and found to be 3.27±0.17 × 10−8, 6.41±0.32 × 10−8, and 3.22±0.16 × 10−8 for 600, 700, and 800 nm pumping wavelengths, respectively. To take into account the influence of nonlinear scattering, absorption-dependent PA measurements were carried out together with the optical Z-scan, and the obtained data were compared. The origin of the effective absorptive nonlinearity is discussed based on combined NLA in NPs, nonlinear scattering, and bubble generation triggered by NP-mediated light absorption. Potential applications include biomedical diagnostics and therapy.
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Цитирование
Nonlinear photoacoustic response of suspensions of laser-synthesized plasmonic titanium nitride nanoparticles / Maldonado, M.E. [et al.] // Optics Letters. - 2020. - 45. - № 24. - P. 6695-6698. - 10.1364/OL.404304
URI
https://www.doi.org/10.1364/OL.404304
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https://openrepository.mephi.ru/handle/123456789/22698
https://www.scopus.com/record/display.uri?eid=2-s2.0-85097609207&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000599793600032
https://openrepository.mephi.ru/handle/123456789/22698