Wszystkie pola: heiss, W. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Spectral Dependence of Fluorescence Enhancement in LH2-Au Nanoparticle Hybrid Nanostructures
Autorzy:: Bujak, L.
Brotosudarmo, T.
Czechowski, N.
Olejnik, M.
Ciszak, K.
Litvin, R.
Cogdell, R.
Heiss, W.
Mackowski, S.
Powiązania:: https://bibliotekanauki.pl/articles/1419487.pdf
Data publikacji:: 2012-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 87.80.Dj
78.47.D-
78.67.Qa
82.35.Np
Opis:: We report on the influence of plasmon resonance in spherical gold nanoparticles on the optical properties of light-harvesting complex LH2 from the purple bacteria Rhodopseudomonas palustris. Systematic studies as a function of the excitation energy and the separation distance indicate that metal enhanced fluorescence shows strong dependence upon both of these parameters. We observe substantial increase of the fluorescence from LH2 complex in a hybrid nanostructure with 12 nm silica spacer. On the other hand, the enhancement measured with laser tuned into the plasmon resonance is almost threefold compared to the off-resonance configuration. The enhancement of fluorescence intensity originates in both cases from the increase of carotenoid absorption in the LH2 complex.
Źródło:: Acta Physica Polonica A; 2012, 122, 2; 252-254
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

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

Skocz do pozycji: 3.

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: 4.

Tytuł:: Między unikalnością a uniwersalizmem: obraz bohaterów aborygeńskich. Recepcja australijskiej literatury aborygeńskiej w Polsce
Between Uniqueness and Universalism: an Image of Indigenous Characters. Reception of Australian Aboriginal Literature in Poland
Autorzy:: Podemska-Abt, Teresa
Powiązania:: https://bibliotekanauki.pl/articles/511287.pdf
Data publikacji:: 2012
Wydawca:: Wydawnictwo Uniwersytetu Śląskiego
Tematy:: indigenous character Indigenous identity
Aboriginal literature
Indigenous story
literary interpretation
literary comparison
dialogism
reception
ethics of writing and reading Car-pentaria
Alexis Wright
Lionel Fogarty
Anita Heiss
Opis:: Being a result from the 2008/9 research into interpretation of Aboriginal literature within Polish readerships, the article explores ways in which Indigenous characters are imagined and understood by Polish readers. Also, given that literatures and their characters are usually looked throughout the readers’ schemata and memory scans, it shows the dominant ways in which the Polish readers interpret and communicate with some of those characters.
Źródło:: Postscriptum Polonistyczne; 2012, 1(9); 151-172
1898-1593
2353-9844
Pojawia się w:: Postscriptum Polonistyczne
Dostawca treści:: Biblioteka Nauki

Artykuł

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