Фокусировка терагерцового излучения мезоразмерной кубоидной линзой из искусственного диэлектрика
Финансирование: -
Аннотация:
Целью работы является исследование новой мезоразмерной кубоидной линзы из искусственного диэлектрика для терагерцового диапазона длин волн. В качестве метода исследования выбрано математическое моделирование процесса. Установлено, что линза из анизотропного вдоль оптической оси искусственного диэлектрика с характерным размером 3λ способна фокусировать терагерцовое излучение на расчетной частоте 0,15 ТГц в фокусное пятно с поперечным размером, равным дифракционному пределу. При этом область фокусировки располагается вдоль оптической оси линзы. Способность фокусировать излучение сохраняется в широком диапазоне эффективного показателя преломления, по крайней мере, от 1,4 до 1,7, при этом величина фокусного расстояния меняется незначительно.
Ключевые слова (RU):
фотонная струя, мезоразмерная частица, янус-частица, искусственный диэлектрик, линза, дифракционный предел
Ключевые слова (EN):
a photon jet, mesoscale the particle, Janus particle, artificial dielectric, lens, diffraction limit
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