Temat: 42.40.Ht - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Use of Bistable Centers in CdF$\text{}_{2}$ for Holographic Recording
Autorzy:: Langer, J. M.
Koziarska-Glinka, B.
Suchocki, A.
Powiązania:: https://bibliotekanauki.pl/articles/1967998.pdf
Data publikacji:: 1997-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 42.40.Lx
78.20.Ci
42.40.Ht
Opis:: It is shown that metastable centers in various semiconductors can be used for efficient hologram recording. This type of holographic materials has a very high dynamic range and sensitivity. Their major drawback for possible applications is low metastability temperature. This problem can be overcome by using CdF$\text{}_{2}$:Ga crystals, which exhibit metastability below 240 K. This material is suitable for writing thick and multiple holograms both in static and dynamic regimes.
Źródło:: Acta Physica Polonica A; 1997, 92, 4; 673-683
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Imaging and Patterning on Nanometer Scale Using Coherent EUV Light
Autorzy:: Wachulak, P.
Marconi, M.
Menoni, C.
Rocca, J.
Fiedorowicz, H.
Bartnik, A.
Powiązania:: https://bibliotekanauki.pl/articles/1539095.pdf
Data publikacji:: 2010-02
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 42.25.Hz
42.40.Ht
42.40.-i
42.55.Vc
Opis:: Extreme ultraviolet (EUV) covers wavelength range from about 5 nm to 50 nm. That is why EUV is especially applicable for imaging and patterning on nanometer scale length. In the paper periodic nanopatterning realized by interference lithography and high resolution holographic nanoimaging performed in a Gabor in-line scheme are presented. In the experiments a compact table top EUV laser was used. Preliminary studies on using a laser plasma EUV source for nanoimaging are presented as well.
Źródło:: Acta Physica Polonica A; 2010, 117, 2; 403-407
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Holographic Recording with the Use of Bistable Centers in CdF$\text{}_{2}$
Autorzy:: Koziarska, B.
Langer, J. M.
Ryskin, A. I.
Shcheulin, A. S.
Suchocki, A.
Powiązania:: https://bibliotekanauki.pl/articles/1934064.pdf
Data publikacji:: 1995-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 42.40.Lx
78.50.Ge
78.20.Ci
42.40.Ht
Opis:: We show that bistability and metastability of In and Ga impurities in CdF$\text{}_{2}$ crystals can be efficiently used in writing volume holographic gratings. Phototransformation of these impurities from the localized to the hydrogenic state leads to a large change of the local polarizability of the host, and thus a significant change of the refractive index. While CdF2:In can be used only at low temperatures (below 150 K), CdF2:Ga crystals are suitable for room temperature recording.
Źródło:: Acta Physica Polonica A; 1995, 88, 5; 1010-1012
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Light-Induced Scattering and Energy Transfer between Orthogonally-Polarized Waves
Autorzy:: Ellabban, M.
Powiązania:: https://bibliotekanauki.pl/articles/1812354.pdf
Data publikacji:: 2008-06
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 42.65.Hw
42.40.Ht
42.40.Eq
42.25.Fx
72.40.+w
Opis:: We present a detailed experimental investigation on polarization-isotropic and polarization-anisotropic holographic scattering in lithium niobate crystal doped with iron when recording parasitic gratings with an ordinary polarized pump beam. The kinetics of both types of scattering during the whole process of recording are studied. Holographic scattering is presented as a simple technique to monitor the energy transfer between beams of different polarization. Moreover, the spectral and the angular dependence of the transmitted intensity of the crystal during the reconstruction of the auto-generated parasitic gratings are measured.
Źródło:: Acta Physica Polonica A; 2008, 113, 6; 1647-1658
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Characterization of a Schottky Diode Rectenna for Millimeter Wave Power Beaming Using High Power Radiation Sources
Autorzy:: Etinger, A.
Pilossof, M.
Litvak, B.
Hardon, D.
Einat, M.
Kapilevich, B.
Pinhasi, Y.
Powiązania:: https://bibliotekanauki.pl/articles/1032884.pdf
Data publikacji:: 2017-05
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 84.40.-x
88.80.hp
88.80.ht
42.25.Bs
Opis:: Two principal elements play a role in a wireless power beaming system: a high power radiation source as the transmitter and a rectifying antenna (rectenna) as an RF to DC converter at the receiving site. A millimeter wave power transmission is analyzed using transmission system and a W-band rectenna based on a low-barrier Schottky diode. A quasi-optical approach is presented here, using free-space Gaussian propagation and optical ABCD matrices for lenses. Experiments are made to estimate the optimal load resistance and power handling capability of a single rectifier. A low power W-band tunable solid-state source delivering 0.4 W CW power equipped by the focusing lenses is used to characterize the responsivity of the rectenna. A pulsed power gyrotron is used to identify the diode breakdown point. It was found that the RF-to-DC conversion efficiency corresponding to the optimal load of 200 Ω is about 20.5% while the maximum DC power converted by the diode with optimal load is about 15 mW before breakdown.
Źródło:: Acta Physica Polonica A; 2017, 131, 5; 1280-1284
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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