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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Wannier-function expansion of localized modes in 1D photonic crystals without inversion symmetry

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Tanaue, Helena B. [1] ; Bruno-Alfons, Alexys [2]
Total Authors: 2
[1] UNESP Sao Paulo State Univ, Sch Engn, Elect Engn, BR-17033360 Bauru, SP - Brazil
[2] UNESP Sao Paulo State Univ, Sch Sci, Dept Math, BR-17033360 Bauru, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS; v. 37, n. 12, p. 3698-3706, DEC 1 2020.
Web of Science Citations: 0

The localized modes of one-dimensional photonic crystals without inversion symmetry are calculated by using linear combinations of Wannier functions. A closed form is given for the phase of the Bloch function leading to maximally localized Wannier functions. The defect consists of changing the refractive index of one layer in a single unit cell. The results for the frequencies and magnetic-field profiles of the localized modes are found in good agreement with calculations based on the transfer-matrix method. The need for maximally localized Wannier functions is discussed. (C) 2020 Optical Society of America (AU)

FAPESP's process: 18/11550-5 - Theoretical investigation of localized electromagnetic modes in one-dimensional photonic crystals without inversion symmetry
Grantee:Helena Borlina Tanaue
Support type: Scholarships in Brazil - Scientific Initiation