公开(公告)号：US20130277575A1

公开(公告)日：2013-10-24

申请号：US13794706

申请日：2013-03-11

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Chubing Peng ,  Lifu Zhou

IPC: G01N21/64

CPC classification number: G01N21/64 ,  G01N21/6489 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

Abstract: An approach for characterizing an optical near field transducer (NFT) involves providing excitation radiation to the NFT. The NFT emits photoluminescent radiation in response to the excitation radiation. The output radiation from the NFT is filtered so that a portion of the photoluminescent radiation emitted by the NFT passes through the filter and the excitation radiation is substantially blocked. A detector detects the portion of photoluminescent radiation and outputs an electrical signal in response to detection of the portion of photoluminescent radiation.

Abstract translation: 用于表征光学近场传感器（NFT）的方法涉及向NFT提供激发辐射。 NFT响应于激发辐射发射光致发光辐射。 过滤来自NFT的输出辐射，使得由NFT发射的一部分光致发光辐射通过滤光器并且激发辐射基本上被阻挡。 检测器检测光致发光辐射的部分并且响应于光致发光辐射的部分的检测而输出电信号。

公开(公告)号：US09291560B2

公开(公告)日：2016-03-22

申请号：US13794706

申请日：2013-03-11

Applicant: Seagate Technology LLC

Inventor： Chubing Peng ,  Lifu Zhou

IPC: G01N21/64 ,  G11B5/60

CPC classification number: G01N21/64 ,  G01N21/6489 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

Abstract: An approach for characterizing an optical near field transducer (NFT) involves providing excitation radiation to the NFT. The NFT emits photoluminescent radiation in response to the excitation radiation. The output radiation from the NFT is filtered so that a portion of the photoluminescent radiation emitted by the NFT passes through the filter and the excitation radiation is substantially blocked. A detector detects the portion of photoluminescent radiation and outputs an electrical signal in response to detection of the portion of photoluminescent radiation.

Abstract translation: 用于表征光学近场传感器（NFT）的方法涉及向NFT提供激发辐射。 NFT响应于激发辐射发射光致发光辐射。 过滤来自NFT的输出辐射，使得由NFT发射的一部分光致发光辐射通过滤光器并且激发辐射基本上被阻挡。 检测器检测光致发光辐射的部分并且响应于光致发光辐射的部分的检测而输出电信号。

公开(公告)号：US20130135975A1

公开(公告)日：2013-05-30

申请号：US13751980

申请日：2013-01-28

Applicant: Seagate Technology LLC

Inventor： Edward Charles Gage ,  Lifu Zhou ,  Michael Allen Seigler ,  William Albert Challener

IPC: G11B21/00 ,  H01L37/04

CPC classification number: G11B21/003 ,  G11B5/314 ,  G11B5/4866 ,  G11B2005/001 ,  G11B2005/0021 ,  H01L37/04

Abstract: An apparatus includes a slider including an air bearing surface and a waveguide configured to receive light from a light source, a sensor positioned to receive a portion of light emitted by the light source prior to the light exiting the slider at the air bearing surface, and a controller controlling the light source power in response to a characteristic of the sensor.

Abstract translation: 一种装置包括滑动件，其包括空气轴承表面和被配置为接收来自光源的光的波导，定位成在光从空气轴承表面处的滑动件射出之前接收由光源发射的光的一部分的传感器，以及 响应于传感器的特性来控制光源功率的控制器。