Тип публикации: статья из журнала

Год издания: 2022

Идентификатор DOI: 10.1103/PhysRevA.105.033518

Аннотация: The sensitivity of a refractive index sensor based on an optical bound state in the continuum is considered. Applying Zel'dovich perturbation theory we derived an analytic expression for bulk sensitivity of an all-dielectric sensor utilizing symmetry protected in-Γ optical bound states in a dielectric grating. The upper sensitivityПоказать полностьюlimit is obtained. A recipe is proposed for obtaining the upper sensitivity limit by optimizing the design of the grating. It is shown that the maximal sensitivity can be achieved regardless to the permittivity of the constituent dielectric of the system. The results are confirmed through direct numerical simulations. © 2022 American Physical Society

Журнал: Physical Review A

Выпуск журнала: Vol. 105, Is. 3

Номера страниц: 33518

ISSN журнала: 24699926

Издатель: American Physical Society

• Maksimov D.N. (IRC SQC, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation)
• Gerasimov V.S. (IRC SQC, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation, Institute of Computational Modeling SB RAS, Krasnoyarsk, 660036, Russian Federation)
• Bogdanov A.A. (Department of Physics and Engineering, ITMO University, St. Petersburg, 191002, Russian Federation)
• Polyutov S.P. (IRC SQC, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation)

• Scopus