Repozytorium

Third-order nonlinear optical properties of colloidal gold nanorods

Autorzy

Joanna Olesiak-Bańska

Marta Gordel

Radosław Kołkowski

Katarzyna Matczyszyn

Marek Samoć

Rok wydania

2012

Czasopismo

Journal of Physical Chemistry C

Numer woluminu

116

Strony

13731-13737

DOI

10.1021/jp301821p

Kolekcja

Naukowa

Język

Angielski

Typ publikacji

Artykuł

Streszczenie

We have evaluated the third-order nonlinear optical properties of gold nanorods in water solution in a broad range of wavelengths including both the longitudinal and transverse surface plasmon resonance (SPR) bands. On the basis of the analysis of Z-scan measurements performed with femtosecond laser pulses, we conclude that the optical nonlinearity in the longitudinal-SPR absorption range originates mainly from the saturation of the one-photon absorption, whereas a resonant two-photon absorption process is dominant in the transverse-SPR range of wavelengths. The discrepancies in the values of two-photon absorption coefficients reported by various researchers and the methods of reliable comparison of the results are discussed.

Słowa kluczowe

Saturation, Absorption, Nonlinear optics, Optical properties, Quantum mechanics

Adres publiczny

http://dx.doi.org/10.1021/jp301821p

Strona internetowa wydawcy

https://www.acs.org/content/acs/en.html

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