High Coupling Efficiency Adiabatic Near-field Transducer for HAMR

Chuan Zhong; Chuan Zhong; Patrick Flanigan; Patrick Flanigan; Nicolás Abadía; Nicolás Abadía; Brian Jennings; Brian Jennings; Frank Bello; Frank Bello; Gwenael Atcheson; Gwenael Atcheson; Jing Li; Jing Li; Jian-Yao Zheng; Jian-Yao Zheng; Richard Hobbs; Richard Hobbs; David McCloskey; David McCloskey; John F. Donegan; John F. Donegan

doi:10.1364/CLEO_QELS.2018.FTh1K.3

Conference on Lasers and Electro-Optics
OSA Terchnical Digest (online) (Optica Publishing Group, 2018),
paper FTh1K.3
•https://doi.org/10.1364/CLEO_QELS.2018.FTh1K.3

High Coupling Efficiency Adiabatic Near-field Transducer for HAMR

Chuan Zhong, Patrick Flanigan, Nicolás Abadía, Brian Jennings, Frank Bello, Gwenael Atcheson, Jing Li, Jian-Yao Zheng, Richard Hobbs, David McCloskey, and John F. Donegan

CLEO: QELS_Fundamental Science 2018

San Jose, California United States
13–18 May 2018
ISBN: 978-1-943580-42-2

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Optical Near-field and Thermal Imaging (FTh1K)

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C. Zhong, P. Flanigan, N. Abadía, B. Jennings, F. Bello, G. Atcheson, J. Li, J. Zheng, R. Hobbs, D. McCloskey, and J. F. Donegan, "High Coupling Efficiency Adiabatic Near-field Transducer for HAMR," in Conference on Lasers and Electro-Optics, OSA Terchnical Digest (online) (Optica Publishing Group, 2018), paper 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.

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