Optical Evaluation of Write Spots in a CD-R by Transmittance Measurement

By Heather Haffner

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August 23, 2022

Introduction

Jasco NFS 300
Jasco NFS 300

Crystal anisotropy of materials, optical rotatory power, and dynamics under a magnetic field are known to affect polarization of transmitted light through certain materials. In practical applications, they are used for high-density recording and display devices. Combining a polarization maintaining fiber probe and the transmission option of the JASCO Near-Field System, a sample was irradiated by a linear polarized beam or a circularly polarized beam and the polarization state of the transmitted light was analyzed. The anisotropy for the sample observed in the nanoscale.

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