Photonic bound states in the continuum governed by heating.

• DOI: 10.48550/arxiv.2307.01628
• Publication Date: 2024-05-10
• Authors: A. I. Krasnov; P. S. Pankin; G. A. Romanenko; V. S. Sutormin; D. N. Maksimov; S. Ya. Vetrov; I. V. Timofeev
• Keywords: 0303 health sciences; 03 medical and health sciences; FOS: Physical sciences; Physics - Optics; Optics (physics.optics)

A photonic crystal microcavity with the liquid crystal resonant layer tunable by heating has been implemented. The multiple vanishing resonant lines corresponding to optical bound states in the continuum are observed. The abrupt behaviour of the resonant linewidth near the vanishing point can be used for temperature sensing.