Photonic bound states in the continuum governed by heating

A I Krasnov; P S Pankin; G A Romanenko; V S Sutormin; D N Maksimov; S Ya Vetrov; I V Timofeev

doi:10.1103/PhysRevE.109.054703

Photonic bound states in the continuum governed by heating

Phys Rev E. 2024 May;109(5-1):054703. doi: 10.1103/PhysRevE.109.054703.

Authors

A I Krasnov^{1

2}, P S Pankin^{1

2

3}, G A Romanenko^{4

5}, V S Sutormin^{1

2}, D N Maksimov^{1

2

3}, S Ya Vetrov^{1

2}, I V Timofeev^{1

2}

Affiliations

¹ Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk 660036, Russia.
² Institute of Engineering Physics and Radio Electronics, Siberian Federal University, Krasnoyarsk 660041, Russia.
³ Qingdao Innovation and Development Center, Harbin Engineering University, Qingdao, Shandong 266000, China.
⁴ Department of Physics and Engineering, ITMO University, 197101, Russia.
⁵ Institute of Electronics and Telecommunications, Peter the Great Saint-Petersburg Polytechnic University, Saint-Petersburg 195251, Russia.

PMID: 38907448
DOI: 10.1103/PhysRevE.109.054703

Abstract

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 change in the resonant linewidth near the vanishing point can be used for temperature sensing.