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Broadband quasi-PT Symmetry Sustained by Inhomogeneous Broadening of the Spectral Lineстатья
- Авторы: Tsvetkov D.M., Bushuev V.A., Konotop V.V., Mantsyzov B.I.
- Сборник: arXiv_submit/2475403 [physics.optics] 18 Nov 2018
- Год издания: 2018
- Первая страница: 1
- Последняя страница: 9
- Аннотация: It is shown that inhomogeneous broadening of the spectral line of active impurities may sustain simultaneously parity (P) and time (T) symmetries of a medium, in a finite range of field frequencies, what is forbidden by the causality principle in media without broadening. If a spectral width of a propagating pulse is less than the inhomogeneous broadening, the medium for such a pulse becomes quasi-PT-symmetric. The effect of the broadband quasi-PT symmetry in a finite frequency domain, is illustrated on examples of unidirectional diffraction of pulses in Bragg and Laue geometries, propagating in photonic crystals.
- Добавил в систему: Бушуев Владимир Алексеевич
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | 1811.07324.pdf | 677,8 КБ | 21 ноября 2018 [bushuevVA] |