Anomalous resonances of an optical microcavity with a hyperbolic metamaterial core
Travkin E, Kiel T, Sadofev S, Busch K, Benson O, Kalusniak S (2018)
Publication Type: Journal article
Publication year: 2018
Journal
Book Volume: 97
Article Number: 195133
Journal Issue: 19
DOI: 10.1103/PhysRevB.97.195133
Abstract
We embed a hyperbolic metamaterial based on stacked layer pairs of epitaxially grown ZnO/ZnO:Ga in a monolithic optical microcavity, and we investigate the arising unique resonant effects experimentally and theoretically. Unlike traditional metals, the semiconductor-based approach allows us to utilize all three permittivity regions of the hyperbolic metamaterial in the near-infrared spectral range. This configuration gives rise to modes of identical orders appearing at different frequencies, a zeroth-order resonance in an all-positive permittivity region, and a continuum of high-order modes. In addition, an unusual lower cutoff frequency is introduced to the resonator mode spectrum. The observed effects expand the possibilities for customization of optical resonators; in particular, the zeroth-order and high-order modes hold strong potential for the realization of deeply subwavelength cavity sizes.
Involved external institutions
Germany (DE)How to cite
APA:
Travkin, E., Kiel, T., Sadofev, S., Busch, K., Benson, O., & Kalusniak, S. (2018). Anomalous resonances of an optical microcavity with a hyperbolic metamaterial core. Physical Review B, 97(19). https://doi.org/10.1103/PhysRevB.97.195133
MLA:
Travkin, Evgenij, et al. "Anomalous resonances of an optical microcavity with a hyperbolic metamaterial core." Physical Review B 97.19 (2018).
BibTeX: Download