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High coupling efficiency adiabatic near-field transducer for HAMR

Zhong, Chuan, Flanigan, Patrick, Abadia, Nicolas, Jennings, Brian, Bello, Frank, Atcheson, Gwenael, Li, Jing, Zheng, Jian-Yao, Hobbs, Richard, McCloskey, David and Donegan, John F. 2018. High coupling efficiency adiabatic near-field transducer for HAMR. Presented at: Conference on Lasers and Electro-Optics (CLEO), San Jose, CA, USA, 13-18 May 2018. Proceedings Conference on Lasers and Electro-Optics, OSA Technical Digest. Optical Society of America, FTh1K.3. 10.1364/CLEO_QELS.2018.FTh1K.3

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Abstract

The literature reports NFT with size below 1 micron are found to be thermo-mechanically unstable and low coupling efficiency. We demonstrate a 6 μm long adiabatic taper. A maximum coupling efficiency of 90.8% is achieved.

Item Type: Conference or Workshop Item (Paper)
Status: Published
Publisher: Optical Society of America
Last Modified: 30 Apr 2019 16:14
URI: http://orca.cf.ac.uk/id/eprint/117263

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