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Instantaneous modulations in time-varying complex optical potentials

التفاصيل البيبلوغرافية
العنوان: Instantaneous modulations in time-varying complex optical potentials
المؤلفون: Armen G Hayrapetyan, S P Klevansky, Jörg B Götte
المصدر: New Journal of Physics, Vol 19, Iss 10, p 105002 (2017)
بيانات النشر: IOP Publishing, 2017.
سنة النشر: 2017
المجموعة: LCC:Science
LCC:Physics
مصطلحات موضوعية: amplitude and frequency modulations, PT symmetry in optics, time-varying wave propagation, analytical solutions to Maxwell’s equations, Science, Physics, QC1-999
الوصف: We study the impact of a spatially homogeneous yet non-stationary dielectric permittivity on the dynamical and spectral properties of light. Our choice of potential is motivated by the interest in ${ \mathcal P }{ \mathcal T }$ -symmetric systems as an extension of quantum mechanics. Because we consider a homogeneous and non-stationary medium, ${ \mathcal P }{ \mathcal T }$ symmetry reduces to time-reversal symmetry in the presence of balanced gain and loss. We construct the instantaneous amplitude and angular frequency of waves within the framework of Maxwell’s equations and demonstrate the modulation of light amplification and attenuation associated with the well-defined temporal domains of gain and loss , respectively. Moreover, we predict the splitting of extrema of the angular frequency modulation and demonstrate the associated shrinkage of the modulation period. Our theory can be extended for investigating similar time-dependent effects with matter and acoustic waves in ${ \mathcal P }{ \mathcal T }$ -symmetric structures.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1367-2630
العلاقة: https://doaj.org/toc/1367-2630Test
DOI: 10.1088/1367-2630/aa8245
الوصول الحر: https://doaj.org/article/210be308292d4eb686f078ef32016de6Test
رقم الانضمام: edsdoj.210be308292d4eb686f078ef32016de6
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:13672630
DOI:10.1088/1367-2630/aa8245