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Proceedings Paper

The optical constants of thin films calculated from reflectance and transmittance measurements
Author(s): Donyau Chiang; Cheng Hung Chu; Hai-Pang Chiang; Ding Ping Tsai
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Paper Abstract

The optical constants including the refraction index n and extinguished coefficient k of the variety of materials are calculated from their reflection and transmittance measurements with measured wavelengths. We derive the reflectance and transmittance equations associated to the material film optical constants. The organic and inorganic materials used for optical recording medium materials are examined. The organic dyes show that significant optical constants vary with the laser wavelength, in comparison to the inorganic phase-change materials. This is an evidence to indicate the complicated bonding structure in the organic dyes within the measured wavelength ranges.

Paper Details

Date Published: 31 July 2009
PDF: 9 pages
Proc. SPIE 7505, Optical Data Storage 2009, 750518 (31 July 2009); doi: 10.1117/12.839471
Show Author Affiliations
Donyau Chiang, National Applied Research Labs. (Taiwan)
Cheng Hung Chu, National Taiwan Ocean Univ. (Taiwan)
Hai-Pang Chiang, National Taiwan Ocean Univ. (Taiwan)
Ding Ping Tsai, National Applied Research Labs. (Taiwan)
National Taiwan Univ. (Taiwan)

Published in SPIE Proceedings Vol. 7505:
Optical Data Storage 2009

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