Page 1/14 Active control of dielectric singularities in Indium-Tin-Oxides hyperbolic metamaterials: from deep-subwavelength collimation to Purcell effect optimization Alessandro Pianelli (  alessandro.pianelli@wat.edu.pl ) Military University of Technology Vincenzo Caligiuri Università della Calabria Micha ł Dudek Military University of Technology Rafa ł Kowerdziej Military University of Technology Urszula Chodorow Military University of Technology Karol Sielezin Military University of Technology Antonio De luca Università della Calabria Roberto Caputo Università della Calabria Janusz Parka Military University of Technology Article Keywords: Tunable hyperbolic metamaterials, nonlinear optics at ε-near-zero-and-pole, canalization of light at ε-near-zero-and-pole, wave front control, active-switch super resolution hyperlens metamaterials, Purcell factor, photonic density of states, spontaneous emission enhancement Posted Date: July 7th, 2022 DOI: https://doi.org/10.21203/rs.3.rs-1799350/v1 License:   This work is licensed under a Creative Commons Attribution 4.0 International License. Read Full License