JP2014175037A5 - - Google Patents

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Publication number
JP2014175037A5
JP2014175037A5 JP2014022191A JP2014022191A JP2014175037A5 JP 2014175037 A5 JP2014175037 A5 JP 2014175037A5 JP 2014022191 A JP2014022191 A JP 2014022191A JP 2014022191 A JP2014022191 A JP 2014022191A JP 2014175037 A5 JP2014175037 A5 JP 2014175037A5
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JP
Japan
Prior art keywords
refractive index
layer
core
core layer
waveguide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2014022191A
Other languages
English (en)
Japanese (ja)
Other versions
JP6309291B2 (ja
JP2014175037A (ja
Filing date
Publication date
Priority claimed from US13/795,623 external-priority patent/US8681595B1/en
Application filed filed Critical
Publication of JP2014175037A publication Critical patent/JP2014175037A/ja
Publication of JP2014175037A5 publication Critical patent/JP2014175037A5/ja
Application granted granted Critical
Publication of JP6309291B2 publication Critical patent/JP6309291B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

JP2014022191A 2013-03-12 2014-02-07 導波管、導波管を備える装置およびディスクドライブ Expired - Fee Related JP6309291B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/795,623 US8681595B1 (en) 2013-03-12 2013-03-12 Layered optical waveguide and near field transducer
US13/795,623 2013-03-12

Publications (3)

Publication Number Publication Date
JP2014175037A JP2014175037A (ja) 2014-09-22
JP2014175037A5 true JP2014175037A5 (enExample) 2017-03-16
JP6309291B2 JP6309291B2 (ja) 2018-04-11

Family

ID=50068941

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2014022191A Expired - Fee Related JP6309291B2 (ja) 2013-03-12 2014-02-07 導波管、導波管を備える装置およびディスクドライブ

Country Status (5)

Country Link
US (2) US8681595B1 (enExample)
EP (1) EP2779164B1 (enExample)
JP (1) JP6309291B2 (enExample)
KR (1) KR101678595B1 (enExample)
CN (1) CN104050979B (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8681595B1 (en) * 2013-03-12 2014-03-25 Seagate Technology Llc Layered optical waveguide and near field transducer
US8953422B1 (en) * 2014-06-10 2015-02-10 Western Digital (Fremont), Llc Near field transducer using dielectric waveguide core with fine ridge feature
US9449627B2 (en) * 2014-12-09 2016-09-20 Seagate Technology Llc Angled waveguide
CN105506560A (zh) * 2016-01-13 2016-04-20 中国科学院上海光学精密机械研究所 提高氧化铪膜层折射率的方法
CN106199817B (zh) * 2016-07-04 2019-04-05 苏州大学 一种光学波导隐身器件
US10249333B2 (en) * 2017-08-25 2019-04-02 Headway Technologies, Inc. Single Rh layer optical field enhancer with pre-focusing structures

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0641049B1 (en) 1993-08-31 1998-10-28 Fujitsu Limited An optical semiconductor device and a method of manufacturing the same
US7236332B2 (en) 2004-10-22 2007-06-26 Hitachi Global Storage Technologies Netherlands, B.V. Thermally assisted recording of magnetic using an in-gap optical resonant cavity
US7310206B2 (en) 2004-12-28 2007-12-18 Sae Magnetics (H.K.) Ltd. Magnetic thin film head with heat-assisted write section and hard disk drive incorporating same
KR100682954B1 (ko) * 2006-01-04 2007-02-15 삼성전자주식회사 열보조 자기기록 헤드
KR100738096B1 (ko) * 2006-01-10 2007-07-12 삼성전자주식회사 열보조 자기기록헤드 및 그 제조방법
JP4745100B2 (ja) * 2006-03-28 2011-08-10 東芝ストレージデバイス株式会社 磁気ディスク装置
KR100803218B1 (ko) * 2006-10-17 2008-02-14 삼성전자주식회사 열보조 자기기록 헤드 및 이를 구비한 기록장치
JP4539672B2 (ja) 2007-03-27 2010-09-08 Ｔｄｋ株式会社 熱アシスト磁気ヘッド、ヘッドジンバルアセンブリ及びハードディスク装置
JP2009054205A (ja) * 2007-08-23 2009-03-12 Tdk Corp 熱アシスト磁気ヘッド、ヘッドジンバルアセンブリ及びハードディスク装置
US7440660B1 (en) * 2007-10-16 2008-10-21 Seagate Technology Llc Transducer for heat assisted magnetic recording
JP2010061704A (ja) * 2008-09-01 2010-03-18 Fujitsu Ltd 磁気ヘッドおよび磁気ディスク装置
US8169881B2 (en) 2008-12-31 2012-05-01 Hitachi Global Storage Technologies Netherlands B.V. Thermally assisted recording head having recessed waveguide with near field transducer and methods of making same
US8451555B2 (en) * 2009-02-24 2013-05-28 Seagate Technology Llc Recording head for heat assisted magnetic recording
US8200054B1 (en) 2009-04-19 2012-06-12 Western Digital (Fremont), Llc High efficiency grating coupling for light delivery in EAMR
US8351305B2 (en) 2009-06-22 2013-01-08 Seagate Technology Llc Notched pole design for HAMR recording
JP4881989B2 (ja) * 2009-10-15 2012-02-22 株式会社日立製作所 熱アシスト記録用磁気ヘッド及びそれを用いた磁気記録装置
US8385183B2 (en) * 2009-11-05 2013-02-26 Seagate Technology, Llc Light delivery waveguide
US8149657B2 (en) * 2010-02-23 2012-04-03 Seagate Technology Llc Optical waveguide clad material
JP5943503B2 (ja) * 2010-09-14 2016-07-05 セイコーインスツル株式会社 近接場光発生素子、及び近接場光発生素子の製造方法、近接場光ヘッド、近接場光ヘッドの製造方法並びに情報記録再生装置
US8270256B1 (en) * 2011-05-06 2012-09-18 Hitachi Global Storage Technologies Netherland B.V. Magnetic recording disk drive with shingled writing and wide-area thermal assistance
US8509037B1 (en) * 2012-04-24 2013-08-13 Seagate Technology Llc Layered optical waveguide and near field transducer
US8873349B2 (en) * 2012-04-24 2014-10-28 Seagate Technology Llc Optical devices including assistant layers
US8644124B2 (en) * 2012-04-24 2014-02-04 Seagate Technology Llc Optical devices including assist layers
US8681595B1 (en) * 2013-03-12 2014-03-25 Seagate Technology Llc Layered optical waveguide and near field transducer

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