Gustaw Szawioła, Szymon Mieloch, Danuta Stefańska*, Przemysław Głowacki, Agata Frajtak, Jędrzej Michalczyk, Krzysztof Murawski, Andrzej Pruchlat, Jan Raczyński, Michał Schmidt, Jerzy Sobkowski, Maksymilian Wosicki, Andrzej Biadasz, Adam Buczek, Anna Dychalska, Piotr Mazerewicz and Mirosław Szybowicz,
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Thermal Effects in Optically Detected Magnetic Resonance of Nitrogen Vacancies in Diamond: A Quantum Thermometer for a Graduate Teaching Lab
This work reports a study of thermal effects in nitrogen vacancies in diamond using the optically detected continuous wave magnetic resonance (cw-ODMR) method. Changes in the ODMR signal induced by heating the diamond sample with both laser light at various powers and by a simple heater were investigated and analyzed. The influence of heating on the ODMR signal was measured for two types of synthetic diamond powder─a low cost microcrystalline powder (particle diameters ca. 80 μm) and a high purity nanodiamond powder (particle diameters ca. 140 nm). The experimental setup can be viewed as a pedagogical quantum thermometer. A number of cost-effective components were used, e.g., a self-constructed confocal microscope, and the Raspberry Pi 4B microcomputer in an experiment control and data acquisition system, as well as an inexpensive microwave modulator, analog to digital converter, and a heating plate.
期刊介绍：
The Journal of Chemical Education is the official journal of the Division of Chemical Education of the American Chemical Society, co-published with the American Chemical Society Publications Division. Launched in 1924, the Journal of Chemical Education is the world’s premier chemical education journal. The Journal publishes peer-reviewed articles and related information as a resource to those in the field of chemical education and to those institutions that serve them. JCE typically addresses chemical content, activities, laboratory experiments, instructional methods, and pedagogies. The Journal serves as a means of communication among people across the world who are interested in the teaching and learning of chemistry. This includes instructors of chemistry from middle school through graduate school, professional staff who support these teaching activities, as well as some scientists in commerce, industry, and government.
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