Autor: Hu, K. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Hollow-Core Bragg Fiber for Bio-Sensing Applications
Autorzy:: Mileńko, K.
Hu, D.
Shum, P.
Woliński, T.
Powiązania:: https://bibliotekanauki.pl/articles/1506806.pdf
Data publikacji:: 2010-12
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 87.85.fk
42.81.Pa
42.81.-i
42.79.Dj
Opis:: Theoretical analysis of propagation properties in a hollow-core Bragg fiber for bio-sensing applications has been demonstrated. Based on the Bragg fiber we propose a resonant sensor that operates on changes in refractive index of aqueous solution placed inside the hollow core. By using the transfer matrix method we analyzed the confinement loss of the $TE_{01}$ mode in the hollow-core Bragg fiber. We have shown the influence of the fiber geometry on the changes in the confinement loss. Spectral sensitivity and resolution of the sensor are also presented.
Źródło:: Acta Physica Polonica A; 2010, 118, 6; 1205-1208
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Photoluminescence of Donor-Doped ZnSe Films Grown by Molecular Beam Epitaxy
Autorzy:: Karczewski, G.
Hu, B.
Yin, A.
Luo, H.
Dobrowolska, M.
Furdyna, J. K.
Powiązania:: https://bibliotekanauki.pl/articles/1932090.pdf
Data publikacji:: 1995-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 68.55.Ln
78.55.Et
Opis:: We studied the effect of the donor doping of ZnSe films on their photoluminescence properties. The samples were doped during the molecular beam epitaxy growth, either with gallium or with chlorine. As the dopant concentration dose increases, the intensity of the band-edge emission first saturates, and then quenches in favor of the deep-level photoluminescence band. The main effect of donor doping on photoluminescence is a strong increase in intensity of the donor-bound exciton line, referred to as I$\text{}_{2}$. For Ga-doped films deep-band emission is much stronger, and the I$\text{}_{2}$-line is slightly weaker than for Cl-doped films with comparable doping level. The results confirm the superiority of chlorine over gallium as an n-type dopant in ZnSe. We discuss the photoluminescence results and relate them to deep level transient spectroscopy data obtained on the same samples.
Źródło:: Acta Physica Polonica A; 1995, 87, 1; 245-248
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Chemical Reactions and Electronic Functions of Carbon Cluster Arrays Studied by Scanning Tunneling Spectroscopy and High-resolution Electron Energy Loss Spectroscopy
Autorzy:: Kasuya, A.
Hu, C.-W.
Suto, S.
Tohji, K.
Takahashi, H.
Czajka, R.
Wawro, A.
Nishina, Y.
Powiązania:: https://bibliotekanauki.pl/articles/1968721.pdf
Data publikacji:: 1998-02
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 61.16.Ch
61.14.Rq
73.61.Wp
Opis:: Novel nanometer scale structures have been produced by thermal heating or laser irradiation on the surface of single- and multi-layers of C$\text{}_{60}$ and C$\text{}_{84}$ on Si. These structures were examined by combined measurements of scanning tunneling spectroscopy and high resolution electron energy loss spectroscopy. The results show specific chemical reactions of substrate with carbon clusters having single- and double-bonded network. Covalent bonds are formed in some of these chemical reactions.
Źródło:: Acta Physica Polonica A; 1998, 93, 2; 317-322
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Dielectric Properties of Lyotropic Magnetic Liquid Crystal
Autorzy:: Kopčanský, P.
Tomčo, L.
Jadzyn, J.
Swiergiel, J.
Majorošová, J.
Kubovčíková, M.
Timko, M.
Rajňák, M.
Šipošová, K.
Gažová, Z.
Bednariková, Z.
Hu, Chin-Kun
Hayryan, S.
Studenyak, I.
Kovalchuk, T.
Kovalchuk, O.
Powiązania:: https://bibliotekanauki.pl/articles/1387983.pdf
Data publikacji:: 2015-02
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 61.30.Gd
61.30.St
75.50.Mm
Opis:: An important feature of lyotropic liquid crystals is the self-assembly of the amphiphilic molecules as supermolecular structures. We have studied the formation of nematic liquid crystal phase in solutions containing lysozyme amyloid fibrils and magnetic nanoparticles using oscilloscopic method. Interaction of fibrils with magnetic nanoparticles under the external magnetic field resulted in fibril re-arrangement. The analysis of the obtained results suggests that the decrease in conductivity of solutions in presence of magnetic field is due to decrease of the ion mobility caused by re-arrangement of structures in the solution. The obtained results allow determination of the optimum ratio of the components which can lead to preparation of solutions with a more ordered structure in presence of magnetic field.
Źródło:: Acta Physica Polonica A; 2015, 127, 2; 632-634
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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