Microwave seminar | 13 February 2023

Guided waves are the perfect carriers of electromagnetic signal in the planar miniaturized devices due to their high localization and controlled propagation direction. However, it is still a challenge to control the polarization of propagating guided waves. We discover both theoretically and experimentally the broadband polarization TE-TM degeneracy of highly localized guided waves propagating along all-dielectric metasurface and a subwavelength chain of dielectric high-index cylinders. Using the discovered near-field polarization degree of freedom, we demonstrate experimentally the polarization transformation for guided waves propagating along a subwavelength chain of dielectric cylinders at a single frequency. The results obtained discover the polarization degree of freedom for guided waves paving way towards numerous applications in flat optics and planar photonics.

Main paper/arXiv, related to the seminar, and other references

1) Yermakov O Y, Hurshkainen A A, Dobrykh D A, Kapitanova P V, Iorsh I V, Glybovski S B and Bogdanov A A 2018 Phys. Rev. B 98(19) 195404
2) Yermakov O Y, Bogdanov A A, Lavrinenko A V 2019 IEEE J. Sel. Top. Quant. Electron. 25(3) 1
3) Asadulina S.M., Bogdanov A.A., Glybovski S.B., Yermakov O.Y. 2021 J. Phys.: Conf. Ser. 2015 012008