Title:
熱アシスト磁気記録における光パワー監視のためのスライダ埋め込み光検出器
Document Type and Number:
Japanese Patent JP5901708
Kind Code:
B2
Abstract:
Techniques for improving the recording quality during heat assisted magnetic recording (HAMR) by monitoring the power of a source used to heat a storage medium are described. In one example, a source emits electromagnetic radiation. A waveguide transmits the electromagnetic radiation onto a surface of a magnetic media. A photoresistive material is proximately located to the waveguide. The resistance of the photoresistive material varies based on the intensity of electromagnetic radiation propagating through the waveguide. The power of the source is determined by measuring the resistance of the photoresitive material. The power of the source is adjusted based on the determined power.
Inventors:
Thomas William Clinton
Takuya Matsumoto
Shen Len
Erhard Shrek
Barry Cashing Type
Takuya Matsumoto
Shen Len
Erhard Shrek
Barry Cashing Type
Application Number:
JP2014157305A
Publication Date:
April 13, 2016
Filing Date:
August 01, 2014
Export Citation:
Assignee:
H.G. Esteneetherland Bee Buoy
International Classes:
G11B5/31; G11B5/02
Domestic Patent References:
| JP2013004122A | ||||
| JP3266475A | ||||
| JP2006114099A | ||||
| JP3263378A | ||||
| JP2012128941A | ||||
| JP2011187111A |
Foreign References:
| US20110228652 | ||||
| WO2009110222A1 |
Attorney, Agent or Firm:
Yusuke Hiraki
Sekiya Mitsuo
Toshiaki Watanabe
Hidekazu Matsumaru
Sekiya Mitsuo
Toshiaki Watanabe
Hidekazu Matsumaru