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Study of HfO2/SiO2 dichroic laser mirrors with refractive index inhomogeneityстатья
Информация о цитировании статьи получена из
Web of Science,
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 10 октября 2015 г.
- Авторы: Jiao Hongfei, Cheng Xinbin, Bao Ganghua, Han Jin, Zhang Jinlong, Wang Zhanshan, Trubetskov M., Tikhonravov Alexander V.
- Журнал: Applied optics
- Том: 53
- Номер: 4
- Год издания: 2014
- Издательство: Optical Society of America
- Местоположение издательства: United States
- Первая страница: A56
- Последняя страница: A61
- DOI: 10.1364/AO.53.000A56
- Аннотация: HfO2/SiO2 dichroic mirrors, having high reflectance at 1064& xA0;nm and high transmittance at 532& xA0;nm, play an important role in high-power laser systems. However, the half-wave hole effect, caused mainly by the refractive index inhomogeneity of hafnia, affects the spectra and application of these mirrors. Two approaches to eliminate the half-wave hole effect have been proposed. Both approaches attempt to shift the location of the half-wave hole in comparison with the original wavelength. One approach broadens the reflectance band of the first harmonic wavelength and simultaneously adjusts the central reflectance band to a longer wavelength, whereas the other approach combines the two stacks to adjust the location of the half-wave hole far away from the wavelength of interest. Two kinds of dichroic mirrors have been successfully fabricated; moreover, it was found that the method of a two-stack combination, 0.9(HL)8 and 1.1(HL)8, provides designs that can be fabricated more easily and with better quality spectral characteristics.
- Добавил в систему: Трубецков Михаил Кириллович