Abstract

A previous paper [Appl. Opt. 52, 6364 (2013) [CrossRef]  ] presented experimental work on the stress-optical effect in the terahertz frequency range. Although the theoretical model of experimental measurement is correct, there are two errors in the original version. As a result, the presented experimentally measured value of the refractive index-stress coefficient A of polytetrafluoroethylene (PTFE) is erroneous. This erratum points out the errors in the original paper and reports the correct values.

© 2016 Optical Society of America

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  1. L. A. Li, W. Song, Z. Y. Wang, S. B. Wang, M. X. He, J. G. Han, and L. Q. Cong, “Active modulation of refractive index by stress in the terahertz frequency range,” Appl. Opt. 52, 6364–6368 (2013).
    [Crossref]

2013 (1)

Cong, L. Q.

Han, J. G.

He, M. X.

Li, L. A.

Song, W.

Wang, S. B.

Wang, Z. Y.

Appl. Opt. (1)

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Figures (1)

Fig. 1.
Fig. 1. Values of ΔN under different stresses.

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Tables (1)

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Table 1. Refractive Index-Stress Coefficient of Experiments

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Equations (2)

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δ d = − 2 π f ( N 0 − 1 ) Δ d c ,
Δ N = c 2 π d Δ δ f + ( N 0 − 1 ) μ σ E .

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