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Transfer efficiency of angular momentum in sum-frequency generation and control of its spin and orbital parts by varying polarization and frequency of fundamental beamsстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 21 августа 2017 г.
- Авторы: Perezhogin I.A., Grigoriev K.S., Potravkin N.N., Cherepetskaya E.B., Makarov V.A.
- Журнал: Laser Physics Letters
- Том: 14
- Год издания: 2017
- Издательство: Wiley - VCH Verlag GmbH & CO. KGaA
- Местоположение издательства: Germany
- Первая страница: 085401
- DOI: 10.1088/1612-202X/aa77a3
- Аннотация: Considering sum-frequency generation in an isotropic chiral nonlinear medium, we analyze the transfer of the spin angular momentum of fundamental elliptically polarized Gaussian light beams to the signal beam, which appears as the superposition of two Laguerre–Gaussian modes with both spin and orbital angular momentum. Only for the circular polarization of the fundamental radiation is its angular momentum fully transferred to the sum-frequency beam; otherwise, part of it can be transferred to the medium. Its value, as well as the ratio of spin and orbital contributions in the signal beam, depends on the fundamental frequency ratio and the polarization of the incident beams. Higher energy conversion efficiency in sum-frequency generation does not always correspond to higher angular momentum conversion efficiency.
- Добавил в систему: Пережогин Игорь Анатольевич