Autor: Kasprzak, D. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Gradient Index Multimode Interference Structures - Technology and Applications
Autorzy:: Błahut, M.
Kasprzak, D.
Powiązania:: https://bibliotekanauki.pl/articles/1795781.pdf
Data publikacji:: 2009-09
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 42.79.Gn
42.82.Ds
42.79.-e
Opis:: The aim of this paper is to present the operating principles and properties of gradient index multimode interference structures made by $K^{+}-Na^{+}$ ion exchange in glass and their basic applications in optoelectronic circuits. The investigations of multimode interference structures were performed applying a method based on the visualization of light distribution in gradient structures, using fluorescence of the substance covering the multimode interference structures section. Basing on the above we present gradient index multimode interference structures applications in splitters and couplers 1× N technology of different configurations.
Źródło:: Acta Physica Polonica A; 2009, 116, 3; 257-260
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Mach-Zehnder Interferometer on the Base of Gradient Index Multimode Interference Structures
Autorzy:: Błahut, M.
Kasprzak, D.
Sujewicz, M.
Powiązania:: https://bibliotekanauki.pl/articles/1795783.pdf
Data publikacji:: 2009-09
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 42.82.Ds
42.82.Et
42.79.Pw
Opis:: The paper presents the technology and testing measurements of Mach-Zehnder interferometer made by $K^{+}-Na^{+}$ ion exchange in glass. As a splitter and coupler of measuring and reference arms we used gradient index multimode interference structures in symmetrical configuration. The investigated interferometer, working in asymmetrical configurations, registers the phase shifts resulting from the changes of refractive index of the cover of both interferometer arms.
Źródło:: Acta Physica Polonica A; 2009, 116, 3; 261-263
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Perception of the Laser Radiation for the Near Infrared Range
Autorzy:: Kecik, D.
Kasprzak, J.
Zając, A.
Powiązania:: https://bibliotekanauki.pl/articles/1493248.pdf
Data publikacji:: 2011-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 42.66.-p
42.66.Ct
42.66.Ne
Opis:: During the diagnostic research done by means of optical devices equipped with radiation sources from the near infrared range the phenomena indicating the perception possibility of this range by a human eye were observed. In this contribution the initial results of the research of this phenomenon were presented. Sources of radiation applied in laser polarimeters (785 nm) and devices designed for optical coherent tomography (820, 850 nm) were taken into particular consideration. Perception tests with the use of a laser diode generating at the wavelength of 940 nm were also carried out. It was stated that the radiation from the range examined can be recorded by a human eye giving a colour sensation - in practice independently of the wavelength of the radiation beam falling into a retina.
Źródło:: Acta Physica Polonica A; 2011, 120, 4; 686-687
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Measurement Possibility Analysis of the Real Values of the Tissue Structure Parameters with the Use of Optical Coherent Tomography Method
Autorzy:: Kasprzak, J.
Kęcik, D.
Zajac, A.
Powiązania:: https://bibliotekanauki.pl/articles/1493240.pdf
Data publikacji:: 2011-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 06.20.-f
42.79.-e
42.79.Ls
42.30.Wb
87.19.rm
Opis:: The issues connected with the usefulness of the method of averaging A-scans applied in measurements of real optical parameters with the use of commercial optical coherent tomography systems have been discussed. The basic method description and examples of applications have been given. Examples of the characteristics of metrological devices used in medical practice as well as the possibility of the method applied to the turbidity assessment have been presented.
Źródło:: Acta Physica Polonica A; 2011, 120, 4; 662-665
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 5.

Tytuł:: Optical Diagnostic in Medicine - Needs and Possibilities
Autorzy:: Kasprzak, J.
Samsel, D.
Borkowska, A.
Kecik, M.
Powiązania:: https://bibliotekanauki.pl/articles/1493247.pdf
Data publikacji:: 2011-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 42.30.Wb
87.57.-s
42.79.-e
42.79.Qx
Opis:: Methods of optical imaging used in medical diagnostic (with taking the newest diagnostic techniques into consideration in particular) have been presented. Selected optical characteristics of tissues having an influence on the range of the classical methods of the optical imaging have been discussed in detail. The respond to the classical method limitations was to use scanning methods and detection techniques consisting in three-dimensional imaging of tissue structures in real time. A specific eye structure allows the wide using of these techniques in ophthalmology. Such advantages like non-invasiveness, non-contactness and high resolution (guaranteeing the safety of a patient) show a huge success of these techniques. The results of the research (conducted in many research centers) point at the wider application possibility of optical scanning method in medical diagnostic.
Źródło:: Acta Physica Polonica A; 2011, 120, 4; 678-685
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 6.

Tytuł:: Methods of Information Extraction from OCT Images
Autorzy:: Zajac, A.
Urbański, Ł.
Kasprzak, J.
Kecik, D.
Powiązania:: https://bibliotekanauki.pl/articles/1493300.pdf
Data publikacji:: 2011-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 87.57.-s
42.79.Qx
42.30.Wb
Opis:: Optical diagnostic methods of biological media are more and more willingly used in clinical practice - also instead of classical biopsy. Particularly, optical coherent tomography methods and mammography (permitting achieving three-dimensional imaging of a tissue) are attractive in comparison with classical diagnostic methods. The article presents the analysis methods of optical parameters of biological tissues developed allowing obtaining absolute values of these parameters. Thanks to modern image analysis methods - wavelet transforms - the optical diagnostic effectiveness was improved. The theoretical and practical results achieved were compared with results of commercially accessible methods implemented in OCT devices.
Źródło:: Acta Physica Polonica A; 2011, 120, 4; 772-775
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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