Probing microwave fields and enabling in-situ experiments in a transmission electron microscope. Goncalves, F. J. T., Paterson, G. W., McGrouther, D., Drysdale, T., Togawa, Y., Schmool, D. S., & Stamps, R. L. Scientific Reports, 7(1):11064, September, 2017.
Probing microwave fields and enabling in-situ experiments in a transmission electron microscope [link]Paper  doi  abstract   bibtex   
A technique is presented whereby the performance of a microwave device is evaluated by mapping local field distributions using Lorentz transmission electron microscopy (L-TEM). We demonstrate the method by measuring the polarisation state of the electromagnetic fields produced by a microstrip waveguide as a function of its gigahertz operating frequency. The forward and backward propagating electromagnetic fields produced by the waveguide, in a specimen-free experiment, exert Lorentz forces on the propagating electron beam. Importantly, in addition to the mapping of dynamic fields, this novel method allows detection of effects of microwave fields on specimens, such as observing ferromagnetic materials at resonance.
@article{goncalves_probing_2017,
	title = {Probing microwave fields and enabling in-situ experiments in a transmission electron microscope},
	volume = {7},
	copyright = {2017 The Author(s)},
	issn = {2045-2322},
	url = {https://www.nature.com/articles/s41598-017-11009-2},
	doi = {10.1038/s41598-017-11009-2},
	abstract = {A technique is presented whereby the performance of a microwave device is evaluated by mapping local field distributions using Lorentz transmission electron microscopy (L-TEM). We demonstrate the method by measuring the polarisation state of the electromagnetic fields produced by a microstrip waveguide as a function of its gigahertz operating frequency. The forward and backward propagating electromagnetic fields produced by the waveguide, in a specimen-free experiment, exert Lorentz forces on the propagating electron beam. Importantly, in addition to the mapping of dynamic fields, this novel method allows detection of effects of microwave fields on specimens, such as observing ferromagnetic materials at resonance.},
	language = {En},
	number = {1},
	urldate = {2017-09-13},
	journal = {Scientific Reports},
	author = {Goncalves, F. J. T. and Paterson, G. W. and McGrouther, D. and Drysdale, T. and Togawa, Y. and Schmool, D. S. and Stamps, R. L.},
	month = sep,
	year = {2017},
	pages = {11064},
}

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