Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.contributor.authorYuan, Guanghuien
dc.contributor.authorRoy, Tapashreeen
dc.contributor.authorShen, Zexiangen
dc.contributor.authorRogers, Edward T. F.en
dc.contributor.authorZheludev, Nikolay I.en
dc.identifier.citationYuan, G., Rogers, E. T. F., Roy, T., Shen, Z., & Zheludev, N. I. (2014). Flat super-oscillatory lens for heat-assisted magnetic recording with sub-50nm resolution. Optics Express, 22(6), 6428-6437.en
dc.description.abstractHeat-assisted magnetic recording (HAMR) is a future roadmap technology to overcome the superparamagnetic limit in high density magnetic recording. Existing HAMR schemes depend on a simultaneous magnetic stimulation and light-induced local heating of the information carrier. To achieve high-density recorded data, near-field plasmonic transducers have been proposed as light concentrators. Here we suggest and investigate in detail an alternative approach exploiting a far-field focusing device that can focus light into sub-50nm hot-spots in the magnetic recording layer using a laser source operating at 473nm. It is based on a recently introduced super-oscillatory flat lens improved with the use of solid immersion, giving an effective numerical aperture as high as 4.17. The proposed solution is robust and easy to integrate with the magnetic recording head thus offering a competitive advantage over plasmonic technology.en
dc.description.sponsorshipASTAR (Agency for Sci., Tech. and Research, S’pore)en
dc.relation.ispartofseriesOptics expressen
dc.rights© 2014 Optical Society of America.en
dc.subjectPhysics & Applied Physicsen
dc.titleFlat super-oscillatory lens for heat-assisted magnetic recording with sub-50nm resolutionen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen
item.fulltextNo Fulltext-
Appears in Collections:SPMS Journal Articles

Citations 5

Updated on Mar 3, 2021

Citations 5

Updated on Mar 2, 2021

Page view(s) 20

Updated on Jul 6, 2022

Google ScholarTM




Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.