Invention Grant
- Patent Title: Optical near-field generator and recording and reproduction apparatus
- Patent Title (中): 光学近场发生器和记录和再现装置
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Application No.: US11761401Application Date: 2007-06-12
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Publication No.: US07652775B2Publication Date: 2010-01-26
- Inventor: Takuya Matsumoto
- Applicant: Takuya Matsumoto
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Antonelli, Terry, Stout & Kraus, LLP.
- Priority: JP2006-162405 20060612
- Main IPC: G01B11/02
- IPC: G01B11/02

Abstract:
Provided is an optical near-field recording and reproduction apparatus capable of adjusting the intensity of optical near-field and the amount of light bouncing off on the bottom of a slider around a scatterer and the surface of a medium and traveling back to a light source. A reflecting layer is formed above a structure for generating an optical near-field, and multiple beam interference is caused between the reflecting layer and the surface of the medium. The amount of returning above an optical near-field generator element is adjusted by adjusting the distance between the reflecting layer and the surface of the medium.
Public/Granted literature
- US20070286031A1 Optical Near-Field Generator and Recording and Reproduction Apparatus Public/Granted day:2007-12-13
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