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Консультация № 196729
20.10.2019, 05:50
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Уважаемые эксперты! Пожалуйста, ответьте на вопрос:
Пластинку определённой толщины d вырезали из двоякопреломляющего вещества параллельно оптической оси n0, ne- показатели преломления обыкновенного и необыкновенного лучей. Напишите условие, которому должна удовлетворять толщина пластинки, чтобы она могла называться "пластинкой в полволны"
Пластинку определённой толщины d вырезали из двоякопреломляющего вещества параллельно оптической оси n0, ne- показатели преломления обыкновенного и необыкновенного лучей. Напишите условие, которому должна удовлетворять толщина пластинки, чтобы она могла называться "пластинкой в полволны"
Обсуждение
23.10.2019, 19:19
общий
это ответ
Здравствуйте, kuznarskaavalentina!
Дано: d -- толщина пластинки из двоякопреломляющего вещества; no, ne -- показатели преломления обыкновенного и необыкновенного лучей.
Определить: условие, которому должна удовлетворять толщина пластинки, чтобы она могла называться "пластинкой в полволны".
Решение
Теория двойного лучепреломления изложена, например, на страницах 346 -- 353 пособия [1]. Загрузить это пособие на свой компьютер Вы можете, обратившись по этой ссылке. Там указано, что толщина пластинки должна удовлетворять условию
где m=0, 1, 2, ...; знак "плюс" соответствует оптически отрицательному кристаллу, а знак "минус" -- оптически положительному; [$955$]0 -- длина волны света в вакууме.
Литература
1. Яворский Б. М., Детлаф А. А. Справочник по физике. -- М.: Наука, 1985. -- 512 с.
Дано: d -- толщина пластинки из двоякопреломляющего вещества; no, ne -- показатели преломления обыкновенного и необыкновенного лучей.
Определить: условие, которому должна удовлетворять толщина пластинки, чтобы она могла называться "пластинкой в полволны".
Решение
Теория двойного лучепреломления изложена, например, на страницах 346 -- 353 пособия [1]. Загрузить это пособие на свой компьютер Вы можете, обратившись по этой ссылке. Там указано, что толщина пластинки должна удовлетворять условию
d(no-ne)=[$177$](m+1/2)[$955$]0,
где m=0, 1, 2, ...; знак "плюс" соответствует оптически отрицательному кристаллу, а знак "минус" -- оптически положительному; [$955$]0 -- длина волны света в вакууме.
Литература
1. Яворский Б. М., Детлаф А. А. Справочник по физике. -- М.: Наука, 1985. -- 512 с.
5
Об авторе:
Facta loquuntur.
Facta loquuntur.
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