Том 27, номер 05, статья № 3

Аннотация:

С помощью Фурье-спектрометра IFS 125 HR в области 5000–5600 см^–1 выполнены исследования уширения и сдвига линий поглощения водяного пара, находящегося внутри нанопор аэрогеля. Показано, что сильное пространственное ограничение движения молекул приводит к значительному уширению и сдвигу спектральных линий.
Впервые представлена полуэмперическая модель для описания формы контура линий поглощения молекул H₂O, находящихся внутри нанопор аэрогеля, учитывающая зависимость полуширин от вращательных квантовых чисел. Значения полуширин спектральных линий, полученные экспериментально и теоретически, находятся в хорошем согласии.

Ключевые слова:

водяной пар, уширение спектральных линий, аэрогель, нанопоры

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