Temat: laser Nd - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Mechanism of nanostructure formation on a surface of CdZnTe crystal by laser irradiation
Autorzy:: Medvid', A.
Mychko, A.
Gnatyuk, V. A.
Levytskyi, S.
Naseka, Y.
Powiązania:: https://bibliotekanauki.pl/articles/385161.pdf
Data publikacji:: 2009
Wydawca:: Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:: self-organizing structure
Nd:YAG laser
CdZnTe crystal
Opis:: Self-organizing nanometer size structures are observed on the surface of CdZnTe crystal irradiated by strongly absorbed Nd:YAG laser irradiation (LR) at intensity range of 4-12 MW/cm2. According to this model the Thermogradient effect has the main role in the interaction process of LR and semiconductors. The surface state of the CdZnTe under the influence of Nd:YAG laser irradiation has been studied. A state has been defined by atom force microscope. The influence of LR on the photoluminescence spectrahas show that at a threshold intensity of LR I=4 MW/cm2 creation of nanometer size structure begins. A graded band gap structure with optical window was formed at the top of nano-hills.
Źródło:: Journal of Automation Mobile Robotics and Intelligent Systems; 2009, 3, 4; 127-129
1897-8649
2080-2145
Pojawia się w:: Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Formation of "black silicon" on a surface of Ni/Si structure by Nd:YAG laser radiation
Autorzy:: Medvid', A.
Karabko, A.
Onufrijevs, P.
Dauksta, E.
Dostanko, A.
Powiązania:: https://bibliotekanauki.pl/articles/385280.pdf
Data publikacji:: 2009
Wydawca:: Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:: black silicon
self-organization
microstructures
Nd:YAG laser
Opis:: We have shown the possibility to form a new type of material known as "black silicon". After irradiation of a Si sample surface, covered with 30 nm thick Ni layer, by Nd: YAG laser beam at intensity 4.5 MW/cm2 the "black silicon" was formed. The formation and self-organization of conelike microstructures on the Ni/Si surface has been detected by scanning electron microscope (SEM). Light is repeatedly reflected between the cones in the way that most of it is absorbed, therefore the surface becomes like a "black body" absorber. The micro-chemical analysis performed on SEM has shown that the microstructures contain NiSi2. This was approved by presence of LO phonon line in Raman back scattering spectrum. The control of micro-cone shape and height was achieved by changing the laser intensity and number of pulses.
Źródło:: Journal of Automation Mobile Robotics and Intelligent Systems; 2009, 3, 4; 140-142
1897-8649
2080-2145
Pojawia się w:: Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:: Biblioteka Nauki

Artykuł

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