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Wyszukujesz frazę "42.40.Pa" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Photorefractive Wave Mixing in Periodically Poled LiNbO$\text{}_{3}$:Y:F
Autorzy:
Odoulov, S.
Shumelyuk, A.
Shinkarenko, O.
Barilov, D.
Pavljuk, S.
Sturman, B.
Powiązania:
https://bibliotekanauki.pl/articles/2030319.pdf
Data publikacji:
2002-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.65.Hw
42.40.Pa
77.80.-e
Opis:
The review of recent experimental work on photorefractive grating recording and frequency degenerate nonlinear wave mixing in periodically poled lithium niobate is given. We report, in particular, on new results concerning photorefractive grating recording in periodically poled lithium niobate by two orthogonally polarized eigenwaves (ordinary and extraordinary), on coherent self-oscillation in semilinear cavity, on evaluation of the effective photovoltaic field in iron-doped periodically poled lithium niobate.
Źródło:
Acta Physica Polonica A; 2002, 101, 1; 159-174
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of the Heat Treatment on the Band Gaps in the Biopolymer Photonic Crystals
Autorzy:
Savic-Sevic, S.
Pantelic, D.
Jelenkovic, B.
Powiązania:
https://bibliotekanauki.pl/articles/1795629.pdf
Data publikacji:
2009-10
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.70.Qs
42.40.Pa
82.35.Pq
87.15.rp
Opis:
1D photonic crystal was fabricated in a dichromate-sensitized biopolymer using holography method. The effects of the temperature of the photonic crystal layer on the center of photonic band gaps were studied. We showed that the central wavelength of the band gap can be tuned by heating the photonic crystal layer. By applying such heat treatment, tuning of the position of the band gap for about 80 nm was obtained.
Źródło:
Acta Physica Polonica A; 2009, 116, 4; 645-646
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Integrated System for Heading Determination
Autorzy:
Kaniewski, P.
Kazubek, J.
Powiązania:
https://bibliotekanauki.pl/articles/1807727.pdf
Data publikacji:
2009-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.81.Pa
85.70.kh
85.85.+j
89.40.Bb
Opis:
The paper presents a design and a prototype of integrated system, designed for heading determination of land vehicles. The heading is an angle between the North direction (true or magnetic) and the direction of longitudal axis of a vehicle in the horizontal plane. In land vehicle positioning and navigation, for most of the time the heading can be considered the same as the direction of movement of the vehicle. Thus, it can be used, along with information about the linear displacement of the vehicle, for dead reckoning, i.e. calculation of current vehicle position by accumulating position increments from a known initial location. The determination of vehicle heading represents a key function of dead reckoning and significantly influences the accuracy of land vehicle positioning. Each of the angular sensors, commonly used for heading determination, has serious drawbacks and joint processing of data from several devices can be advantageous. The paper contains a short description of operation, properties and error characteristics of gyros and electronic compasses, which are frequently applied in heading determination application. Further part of the paper presents a design of integrated system, composed of the above mentioned devices. The system processes navigation data with use of a single complementary Kalman filter. A prototype of the designed system has been constructed and tested by the authors. The paper contains a detailed description of the prototype and chosen results of its testing.
Źródło:
Acta Physica Polonica A; 2009, 116, 3; 325-330
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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