Тип публикации: статья из журнала
Год издания: 2021
Идентификатор DOI: 10.1038/s41598-021-96784-9
Аннотация: A polarization microscopy method to investigate the orientational structures and boojums formed in the chiral and achiral nematic layers under conical (tilted) boundary conditions has been developed. Oblique light incidence on nematic layer is used, due to which the phase difference between the ordinary and extraordinary waves depeПоказать полностьюnds on the director’s azimuthal angle. The phase difference gets maximal when the director azimuthal angle of achiral nematic φ(x, y) = 0 and an azimuthal angle at the center of the chiral nematic layer φ(x, y) = 0 independently of the total twist angle φTOTAL. It has been found that the m= + 1 boojums with the phase ξ= ± 90 ∘ and ξ= (- 90 ∘+ φTOTAL/ 2 ) are formed in achiral and chiral nematics, respectively, at the director tilt angle θd/2≅ 40 ∘ at the interface. In addition, the defectless structure of chiral nematic with the periodically variable azimuthal director angle on the substrates has been studied. © 2021, The Author(s).
Журнал: Scientific Reports
Выпуск журнала: Vol. 11, Is. 1
Номера страниц: 17433
ISSN журнала: 20452322
Издатель: Nature Research