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Conference Paper: Magneto-optical Kerr effect and photonic band gap in cobalt nano-disc array

TitleMagneto-optical Kerr effect and photonic band gap in cobalt nano-disc array
Authors
KeywordsFinite-difference time-domain
Magneto-optical Kerr effect
Magneto-photonic crystals
Photonic band gap
Issue Date2003
PublisherS P I E - International Society for Optical Engineering. The Journal's web site is located at http://spie.org/x1848.xml
Citation
Proceedings Of Spie - The International Society For Optical Engineering, 2003, v. 5280 I, p. 445-453 How to Cite?
AbstractIn this paper, we report our experimental investigation on two-dimensional (2-D) magneto-photonic crystals (MPCs) by using high-precision magneto-optical Kerr effect (MOKE) measurement. Our 2-D MPC is in the form of a periodic triangular array of cobalt (Co) circular nano-discs on a silicon (Si) substrate. Preliminary longitudinal MOKE measurement reveals a hysteresis loop that suggests a saturated Kerr rotation of ≈ 0.05°. We numerically investigate the potential photonic band gap (PBG) phenomenon of a triangular nano-disc array with the Co real refractive index = 2.26 by using 2-D finite-different time-domain (FDTD) method. We observe relatively wide TM-polarization (E-field 1 substrate) band gaps in the 1550-nm telecommunication wavelengths: 500 nm in the Γ-M direction whereas 400 nm in the Γ-K direction.
Persistent Identifierhttp://hdl.handle.net/10722/91316
ISSN
References

 

DC FieldValueLanguage
dc.contributor.authorTsia, KKen_HK
dc.contributor.authorCheng, CLen_HK
dc.contributor.authorHung, STen_HK
dc.contributor.authorPoon, AWen_HK
dc.date.accessioned2010-09-17T10:16:56Z-
dc.date.available2010-09-17T10:16:56Z-
dc.date.issued2003en_HK
dc.identifier.citationProceedings Of Spie - The International Society For Optical Engineering, 2003, v. 5280 I, p. 445-453en_HK
dc.identifier.issn0277-786Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/91316-
dc.description.abstractIn this paper, we report our experimental investigation on two-dimensional (2-D) magneto-photonic crystals (MPCs) by using high-precision magneto-optical Kerr effect (MOKE) measurement. Our 2-D MPC is in the form of a periodic triangular array of cobalt (Co) circular nano-discs on a silicon (Si) substrate. Preliminary longitudinal MOKE measurement reveals a hysteresis loop that suggests a saturated Kerr rotation of ≈ 0.05°. We numerically investigate the potential photonic band gap (PBG) phenomenon of a triangular nano-disc array with the Co real refractive index = 2.26 by using 2-D finite-different time-domain (FDTD) method. We observe relatively wide TM-polarization (E-field 1 substrate) band gaps in the 1550-nm telecommunication wavelengths: 500 nm in the Γ-M direction whereas 400 nm in the Γ-K direction.en_HK
dc.languageengen_HK
dc.publisherS P I E - International Society for Optical Engineering. The Journal's web site is located at http://spie.org/x1848.xmlen_HK
dc.relation.ispartofProceedings of SPIE - The International Society for Optical Engineeringen_HK
dc.subjectFinite-difference time-domainen_HK
dc.subjectMagneto-optical Kerr effecten_HK
dc.subjectMagneto-photonic crystalsen_HK
dc.subjectPhotonic band gapen_HK
dc.titleMagneto-optical Kerr effect and photonic band gap in cobalt nano-disc arrayen_HK
dc.typeConference_Paperen_HK
dc.identifier.emailTsia, KK:tsia@hku.hken_HK
dc.identifier.authorityTsia, KK=rp01389en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1117/12.520374en_HK
dc.identifier.scopuseid_2-s2.0-2942644711en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-2942644711&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume5280 Ien_HK
dc.identifier.spage445en_HK
dc.identifier.epage453en_HK
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridTsia, KK=6506659574en_HK
dc.identifier.scopusauthoridCheng, CL=7404797896en_HK
dc.identifier.scopusauthoridHung, ST=7201936241en_HK
dc.identifier.scopusauthoridPoon, AW=7103068889en_HK

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