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Holography in the short-wave infrared range
Schlor, Michal ; Baránek, Michal (referee) ; Bouchal, Petr (advisor)
This master's thesis focuses on digital holography in the near-infrared region. Digital holography is a method that allows for the reconstruction of phase changes and is therefore suitable for studying optical metasurfaces and their properties beyond the capabilities of traditional intensity measurements. The initial research part of the thesis discusses the theory of optical metasurfaces and the principles of digital holography. The acquired knowledge is utilized in the subsequent section of the thesis, which deals with the design of a holographic module that, when connected to a suitable imaging system, enables the implementation of digital holographic microscopy methods. The holographic module is based on a geometric-phase metasurface made of silicon, which allows for operation at a central wavelength of 1550\,nm. The thesis provides a theoretical design of the metasurface and the entire holographic module. The obtained parameters are verified through numerical simulations of holographic imaging. The practical part describes the experimental procedure for testing samples of the geometric-phase metasurface and demonstrates its integration into the assembled holographic module. In the conclusion of the thesis, the holographic module is connected to a microscope and tested under holographic microscopy conditions. The results of the master's thesis can be applicable for investigating phase changes induced by tunable metasurfaces made of vanadium oxide.
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Design of the fluorescence microscope for carbon nanotubes spectroscopy
Borovský, Ján ; Novotný,, Karel (referee) ; Novotný, Jan (advisor)
This diploma thesis deals with design, implementation and testing of fluorescence microscope intended for carbon nanotubes spectroscopy. Theory of fluorescence resulting from solid state physics and atomic structure of nanotubes is briefly discussed. The basic idea, optical scheme and optical elements used in the fluorescence microscope are described based on requirements resulting from the theory. The thesis mentions the sample preparation procedure and measurements of its optical activity as well. Realized microscope is usable for fluorescence measurements within the supposed range of wavelengths as was proved by testing.
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Holography in the short-wave infrared range
Schlor, Michal ; Baránek, Michal (referee) ; Bouchal, Petr (advisor)
This master's thesis focuses on digital holography in the near-infrared region. Digital holography is a method that allows for the reconstruction of phase changes and is therefore suitable for studying optical metasurfaces and their properties beyond the capabilities of traditional intensity measurements. The initial research part of the thesis discusses the theory of optical metasurfaces and the principles of digital holography. The acquired knowledge is utilized in the subsequent section of the thesis, which deals with the design of a holographic module that, when connected to a suitable imaging system, enables the implementation of digital holographic microscopy methods. The holographic module is based on a geometric-phase metasurface made of silicon, which allows for operation at a central wavelength of 1550\,nm. The thesis provides a theoretical design of the metasurface and the entire holographic module. The obtained parameters are verified through numerical simulations of holographic imaging. The practical part describes the experimental procedure for testing samples of the geometric-phase metasurface and demonstrates its integration into the assembled holographic module. In the conclusion of the thesis, the holographic module is connected to a microscope and tested under holographic microscopy conditions. The results of the master's thesis can be applicable for investigating phase changes induced by tunable metasurfaces made of vanadium oxide.
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Design of the fluorescence microscope for carbon nanotubes spectroscopy
Borovský, Ján ; Novotný,, Karel (referee) ; Novotný, Jan (advisor)
This diploma thesis deals with design, implementation and testing of fluorescence microscope intended for carbon nanotubes spectroscopy. Theory of fluorescence resulting from solid state physics and atomic structure of nanotubes is briefly discussed. The basic idea, optical scheme and optical elements used in the fluorescence microscope are described based on requirements resulting from the theory. The thesis mentions the sample preparation procedure and measurements of its optical activity as well. Realized microscope is usable for fluorescence measurements within the supposed range of wavelengths as was proved by testing.
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