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Design of a Non-Resonant General Purpose Sample Holder for Terahertz Electron Paramagnetic Resonance Spectroscopy
Martínek, Tomáš ; Sojka, Zbigniew (oponent) ; Neugebauer, Petr (vedoucí práce)
The aim of this diploma thesis is to design dedicated sample holders for a high-frequency electron paramagnetic resonance spectroscopy. The main task deals with the development of a user-friendly and fast locking system for connection between microwave waveguide and a sample holder. Two types of sample holders are designed one for loading multiple samples and one for single crystal rotation. Thanks to loading up to 6 samples the overall measurement time is estimated to be reduced more than twice. In the case of the single crystal rotator based on the precise piezoelectric rotator with resistive encoder a milliradian, precision is provided. Both sample holders are designed in such a way that the full automatization can be applied in the measurement.
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Design of Optically Detected Magnetic Resonance (ODMR) Spectrometer
Schneider, Martin ; Veis, Martin (oponent) ; Neugebauer, Petr (vedoucí práce)
The subject of this master’s thesis is to develop a new spectrometer of Optically Detected Magnetic Resonance (ODMR) by modification of standard Magnetic Circular Dichroism (MCD) spectrometer. A new microwave irradiation is added and coupled to the optical path by ITO coated dichroic mirror. The microwave beam is guided through series of quasi-optical lenses. For irradiation with lower frequencies, antenna determined to be placed beneath the sample is designed. The performance of the new ODMR spectrometer is then demonstrated on various metal complexes.
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Design of a Non-Resonant General Purpose Sample Holder for Terahertz Electron Paramagnetic Resonance Spectroscopy
Martínek, Tomáš ; Sojka, Zbigniew (oponent) ; Neugebauer, Petr (vedoucí práce)
The aim of this diploma thesis is to design dedicated sample holders for a high-frequency electron paramagnetic resonance spectroscopy. The main task deals with the development of a user-friendly and fast locking system for connection between microwave waveguide and a sample holder. Two types of sample holders are designed one for loading multiple samples and one for single crystal rotation. Thanks to loading up to 6 samples the overall measurement time is estimated to be reduced more than twice. In the case of the single crystal rotator based on the precise piezoelectric rotator with resistive encoder a milliradian, precision is provided. Both sample holders are designed in such a way that the full automatization can be applied in the measurement.
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Design of Optically Detected Magnetic Resonance (ODMR) Spectrometer
Schneider, Martin ; Veis, Martin (oponent) ; Neugebauer, Petr (vedoucí práce)
The subject of this master’s thesis is to develop a new spectrometer of Optically Detected Magnetic Resonance (ODMR) by modification of standard Magnetic Circular Dichroism (MCD) spectrometer. A new microwave irradiation is added and coupled to the optical path by ITO coated dichroic mirror. The microwave beam is guided through series of quasi-optical lenses. For irradiation with lower frequencies, antenna determined to be placed beneath the sample is designed. The performance of the new ODMR spectrometer is then demonstrated on various metal complexes.
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