Giant birefringence and dichroism induced by ultrafast laser pulses in hydrogenated amorphous siliconстатья
Статья опубликована в высокорейтинговом журнале
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: 16 июня 2015 г.
Авторы:
Drevinskas Rokas,
Beresna Martynas,
Gecevicius Mindaugas,
Khenkin Mark,
Kazanskii Andrey G.,
Matulaitiene Ieva,
Niaura Gediminas,
Konkov Oleg I.,
Terukov Eugene I.,
Svirko Yu P.,
Kazansky Peter G.
Аннотация:A femto- and picosecond laser assisted periodic nanostructuring of hydrogenated amorphous silicon (a-Si:H) is demonstrated. The grating structure with the subwavelength modulation of refractive index shows form birefringence (Delta n approximate to -0.6) which is two orders of magnitude higher than commonly observed in uniaxial crystals and femtosecond laser nanostructured silica glass. The laser-induced giant birefringence and dichroism in a-Si:H film introduce extra dimensions to the polarization sensitive laser writing with applications that include data storage, security marking, and flat optics. (C) 2015 AIP Publishing LLC.