Abstract:
:We propose an internal (on-chip) Wheatstone bridge configuration to evaluate the efficiency of near-field transducers (NFT) as used in heat-assisted magnetic recording (HAMR). The electric field enhancement between the transducer and the image plane is monitored by measuring the resistance of metal electrodes composing the image plane. The absorption of the enhanced electric field causes an increase in the metal temperature, and thereby, in its resistance whose variation is monitored with an internal Wheatstone bridge which is accurately balanced in the absence of the electric field.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Gosciniak J,Mooney M,Gubbins M,Corbett Bdoi
10.1038/srep24423subject
Has Abstractpub_date
2016-04-14 00:00:00pages
24423issn
2045-2322pii
srep24423journal_volume
6pub_type
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