Autor: Olejnik, M. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Gold Nanoparticles with Elongated Shapes: Synthesis and Optical Properties
Autorzy:: Olejnik, M.
Agarwal, A.
Zaleszczyk, W.
Kotov, N.
Mackowski, S.
Powiązania:: https://bibliotekanauki.pl/articles/1419540.pdf
Data publikacji:: 2012-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 81.07.-b
81.07.Pr
87.64.kv
87.64.K-
Opis:: We use a seed-mediated growth to fabricate gold nanorods in water solution. By changing the amount of silver salt we demonstrate the control of aspect ratio of the obtained rods. The microscopic and spectroscopic analyses provide ways to characterize the morphology and the optical properties of the gold nanorods. Nanorods synthesized using this approach feature length of the order of 50-60 nm, which translates into longitudinal plasmon resonances in the near infrared spectrum region.
Źródło:: Acta Physica Polonica A; 2012, 122, 2; 346-349
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Fluorescence Mapping of PCP Light-Harvesting Complexes Coupled to Silver Nanowires
Autorzy:: Krajnik, B.
Piatkowski, D.
Olejnik, M.
Czechowski, N.
Hofmann, E.
Heiss, W.
Mackowski, S.
Powiązania:: https://bibliotekanauki.pl/articles/1419489.pdf
Data publikacji:: 2012-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 87.64.kv
42.62.Fi
81.07.Pr
87.64.M-
Opis:: In this work we demonstrate confocal fluorescence imaging of hybrid nanostructures composed of silver nanowires and peridinin-chlorophyll-protein light-harvesting complexes. The length of silver nanowires, which reaches 10 μm, allows for determination of the nanowire position and consequently direct correlation with the fluorescence image. In this way we probe the influence of plasmon induced electromagnetic field on the fluorescence of light-harvesting complexes. When the nanowires are spaced from the light-harvesting complexes by a 10 nm thick dielectric layer, we observe a fluorescence enhancement, which depends upon the laser excitation wavelength. The measured enhancement values are 2.5 and 1.9 for 405 nm and 485 nm, respectively. Larger enhancement for the 405 nm excitation is attributed to direct creation of plasmon excitations in the silver nanowires.
Źródło:: Acta Physica Polonica A; 2012, 122, 2; 259-262
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Influence of Plasmon Resonance in Silver Island Film on the Optical Properties of Peridinin-Chlorophyll-Protein Light-Harvesting Complexes
Autorzy:: Ciszak, K.
Olejnik, M.
Strzelecki, J.
Krajnik, B.
Piątkowski, D.
Hofmann, E.
Mackowski, S.
Powiązania:: https://bibliotekanauki.pl/articles/1419506.pdf
Data publikacji:: 2012-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 33.50.Dq
73.20.Mf
87.15.M-
81.07.Pr
Opis:: We study the effect of plasmon excitations in silver island film on the optical properties of peridinin-chlorophyll-protein light-harvesting complex using scanning fluorescence microscopy. With this technique we can unambiguously locate areas where the biomolecules are deposited on the metallic nanostructures from the areas where they stick to the glass surface. The enhancement factor of fluorescence intensity obtained for such a hybrid nanostructure is found to be 3. Plasmon excitations in the SIF layer also influence the dynamics of the emission, but in this case the interpretation of the results is more complex.
Źródło:: Acta Physica Polonica A; 2012, 122, 2; 275-278
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Fluorescence Microscopy of Corrole-Single Silver Nanowire Hybrid Nanostructures
Autorzy:: Czechowski, N.
Olejnik, M.
Nowak-Król, A.
Piątkowski, D.
Heiss, W.
Gryko, D.
Mackowski, S.
Powiązania:: https://bibliotekanauki.pl/articles/1419537.pdf
Data publikacji:: 2012-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 33.50.-j
78.67.Uh
73.20.Mf
81.07.Pr
81.07.-b
Opis:: We report on confocal microscopy imaging of hybrid nanostructures composed of silver nanowires and corroles. Both nanomaterials were separated by a 30 nm thick $SiO_2$ spacer in order to inhibit fluorescence quenching. The results show that for such a hybrid nanostructure the average enhancement of the fluorescence intensity reached 2.5. Importantly, the coupling to plasmon excitations in metallic nanowires leaves no effect on the fluorescence spectrum of the organic molecules.
Źródło:: Acta Physica Polonica A; 2012, 122, 2; 333-336
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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