Оптические системы для снятия поляризационных спектров
DOI:
https://doi.org/10.31489/2019No2/83-88Ключевые слова:
оптические системы, анизотропные молекулы, поляризация, область ультрафиолетового спектра, четвертьволновая пластинка, чувствительность, оптическая плотностьАннотация
Приведены оптические системы, которые разработаны авторами и в течение многих лет применялись для исследования поляризационных свойств анизотропных молекул. Обе системы рассчитаны на видимую и близко к ультрафиолетовой спектральные области. При этом двойной параллелепипед Френеля играет роль ахроматической четверть волновой пластинки. Они используются в дихрогрофе Jasco-20 после ячейки Покельса. В результате чего чувствительность прибора возрастает от θ≅〖10〗^(-3)град∙〖см〗^(-1) до 3∙〖10〗^(-5) величины разностей оптической плотности.
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