Enhanced deep ultraviolet inverse polarization transmission through hybrid Al-SiO2 gratings
2013 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 103, no 13, 131110- p.Article in journal (Refereed) Published
We report on the enhancement of inverse polarization transmission of deep ultraviolet light, with the TE transmittance ηTE largely exceeding the TM transmittance ηTM, through a hybrid Al-SiO 2 grating: The grating slits are conformally filled with SiO 2. Strong coupling of the incident wave to surface plasmon polaritons greatly reduces the TM transmittance, whereas the coupling to the low-loss TE mode, with its effective refractive index approaching that of the substrate, leads to the enhanced TE transmittance. At resonance, a pronounced inverse polarization extinction ratio of 35 dB was obtained in our experiment, much higher than any previously reported values.
Place, publisher, year, edition, pages
2013. Vol. 103, no 13, 131110- p.
At resonance, Deep ultraviolet, Effective refractive index, Incident waves, Low-loss, Polarization extinction ratio, Strong coupling, Surface plasmon polaritons
Other Physics Topics
IdentifiersURN: urn:nbn:se:kth:diva-133256DOI: 10.1063/1.4823537ISI: 000325284500010ScopusID: 2-s2.0-84885008872OAI: oai:DiVA.org:kth-133256DiVA: diva2:660517
QC 201310302013-10-302013-10-292013-11-06Bibliographically approved