Тип публикации: статья из журнала
Год издания: 2012
Идентификатор DOI: 10.1103/PhysRevE.85.011705
Ключевые слова: Applied voltages, Avoided crossings, Complex structure, Defect layers, Defect mode, Defect mode coupling, Electrically tunable, Elliptic polarization, Frequency shift, One dimensional photonic crystal, Polarized modes, Twisted nematic, Defects, Nematic liquid crystals
Аннотация: Defect modes are investigated in a band gap of an electrically tunable one-dimensional photonic crystal infiltrated with a twisted-nematic liquid crystal. Their frequency shift and interference under applied voltage are studied both experimentally and theoretically. We deal with the case where the defect layer thickness is much larПоказать полностьюger than the wavelength (i.e., the Mauguin condition). It is shown theoretically that the defect modes could have a complex structure with elliptic polarization. Two series of polarized modes are coupled with each other and exhibit an avoided crossing phenomenon in the case of opposite parity.
Журнал: PHYSICAL REVIEW E
Выпуск журнала: Vol. 85, Is. 1, Part1
ISSN журнала: 15393755
Место издания: COLLEGE PK
Издатель: AMER PHYSICAL SOC