2016
Materials Pushing the Application Limits of Wire Grid Polarizers further into the Deep Ultraviolet Spectral Range
SIEFKE, Thomas; Stefanie KROKER; Kristin PFEIFFER; Oliver PUFFKY; Kay DIETRICH et. al.Základní údaje
Originální název
Materials Pushing the Application Limits of Wire Grid Polarizers further into the Deep Ultraviolet Spectral Range
Autoři
SIEFKE, Thomas; Stefanie KROKER; Kristin PFEIFFER; Oliver PUFFKY; Kay DIETRICH; Daniel FRANTA; Ivan OHLÍDAL; Adriana SZEGHALMI; Ernst-Bernhard KLEY a Andreas TÜNNERMANN
Vydání
Advanced Optical Materials, 2016, 2195-1071
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10306 Optics
Stát vydavatele
Německo
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 6.875
Kód RIV
RIV/00216224:14310/16:00093988
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000392404200016
EID Scopus
2-s2.0-84978288747
Klíčová slova anglicky
Wire Grid Polarizers; Dispersion model; Films; Lithography
Změněno: 6. 4. 2017 22:20, Ing. Andrea Mikešková
Anotace
V originále
Wire grid polarizers (WGPs), periodic nano-optical metasurfaces, are convenient polarizing elements for many optical applications. However, they are still inadequate in the deep ultraviolet spectral range. It is shown that to achieve high performance ultraviolet WGPs a material with large absolute value of the complex permittivity and extinction coefficient at the wavelength of interest has to be utilized. This requirement is compared to refractive index models considering intraband and interband absorption processes. It is elucidated why the extinction ratio of metallic WGPs intrinsically humble in the deep ultraviolet, whereas wide bandgap semiconductors are superior material candidates in this spectral range. To demonstrate this, the design, fabrication, and optical characterization of a titanium dioxide WGP are presented. At a wavelength of 193 nm an unprecedented extinction ratio of 384 and a transmittance of 10% is achieved.
Návaznosti
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