Particle sizing in fluoride glasses and fibers by scattering measurements

M. Biet; J. J. Guérin; J. Cornillault

doi:10.1364/AO.29.002266

Applied Optics
Vol. 29,
Issue 15,
pp. 2266-2275
(1990)
•https://doi.org/10.1364/AO.29.002266

Particle sizing in fluoride glasses and fibers by scattering measurements

M. Biet, J. J. Guérin, and J. Cornillault

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M. Biet, J. J. Guérin, and J. Cornillault, "Particle sizing in fluoride glasses and fibers by scattering measurements," Appl. Opt. 29, 2266-2275 (1990)

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Abstract

Angular scattering measurements on fluoride glass fibers or bulk samples are reported. Patterns obtained on crystallites or bubbles give several peaks which are dependent on particle size and refractive index. Peak positions and scattering levels on the experimental curves are interpreted using Mie scattering theory. Particle sizing is possible and the refractive index can be estimated.

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a (μm)		0.1	0.2	0.3	0.6	1	2

ZrO₂ (m₁ = 2.2)	Δθ (°)	≈180	65	37	18	12	6
ZrO₂ (m₁ = 2.2)	R_sft	3	15	43	340	240	660

Al₂O₃ (m₁ = 1.77)	Δθ (°)		130	60	22	13	6
Al₂O₃ (m₁ = 1.77)	R_sft		0.4	3	16	77	170

ZrF₄ (m₁ = 1.59)	Δθ (°)		≈180	50	29-23	15	12-7
ZrF₄ (m₁ = 1.59)	R_sft		0.6	0.4	1.3	8	33

Bubble (m₁ = 1)	Δθ (°)			≈180	75	25	17-10
Bubble (m₁ = 1)	R_sft			8	42	224	840

a (μm)	0.1	0.2	0.3	0.6	1	2
ZrO₂ (m₁ = 2.2)	4.3 10⁻⁵	8.5 10⁻⁴	2.7 10⁻³	4.7 10⁻³	1.3 10⁻²	5.7 10⁻²
Al₂O₃ (m₁ = 1.77)	5.9 10⁻⁶	1.3 10⁻⁴	7 10⁻⁴	7.9 10⁻³	2.2 10⁻²	7.3 10⁻²
ZrF₄ (m₁ = 1.59)	5.4 10⁻⁷	1.2 10⁻⁵	6.6 10⁻⁵	1.1 10⁻³	7.9 10⁻³	8.2 10⁻²
Bubble (m₁ = 1)	1.6 10⁻⁵	2.8 10⁻⁴	1.1 10⁻³	4.7 10⁻³	1.6 10⁻²	5.5 10⁻²

a (μm)	0.1	0.2	0.3	0.6	1	2
ZrO₂ (m₁ = 2.2)	2.6 10⁻⁷	1.7 10⁻⁵	1.6 10⁻⁴	4.6 10⁻³	2.7 10⁻²	5.8 10⁻²
Al₂O₃ (m₁ = 1.77)	4.2 10⁻⁸	2.4 10⁻⁶	2.3 10⁻⁵	5.9 10⁻⁴	5.3 10⁻³	7.1 10⁻²
ZrF₄ (m₁ = 1.59)	4.1 10⁻⁹	2.3 10⁻⁷	2.1 10⁻⁶	5.2 10⁻⁵	4.8 10⁻⁴	8.4 10⁻³
Bubble (m₁ = 1)	1.7 10⁻⁷	8.3 10⁻⁶	6.6 10⁻⁵	1.4 10⁻³	9.8 10⁻³	6.1 10⁻²

a (μm)		0.1	0.2	0.3	0.6	1	2

ZrO₂ (m₁ = 2.2)	Δθ (°)	≈180	65	37	18	12	6
ZrO₂ (m₁ = 2.2)	R_sft	3	15	43	340	240	660

Al₂O₃ (m₁ = 1.77)	Δθ (°)		130	60	22	13	6
Al₂O₃ (m₁ = 1.77)	R_sft		0.4	3	16	77	170

ZrF₄ (m₁ = 1.59)	Δθ (°)		≈180	50	29-23	15	12-7
ZrF₄ (m₁ = 1.59)	R_sft		0.6	0.4	1.3	8	33

Bubble (m₁ = 1)	Δθ (°)			≈180	75	25	17-10
Bubble (m₁ = 1)	R_sft			8	42	224	840

a (μm)	0.1	0.2	0.3	0.6	1	2
ZrO₂ (m₁ = 2.2)	4.3 10⁻⁵	8.5 10⁻⁴	2.7 10⁻³	4.7 10⁻³	1.3 10⁻²	5.7 10⁻²
Al₂O₃ (m₁ = 1.77)	5.9 10⁻⁶	1.3 10⁻⁴	7 10⁻⁴	7.9 10⁻³	2.2 10⁻²	7.3 10⁻²
ZrF₄ (m₁ = 1.59)	5.4 10⁻⁷	1.2 10⁻⁵	6.6 10⁻⁵	1.1 10⁻³	7.9 10⁻³	8.2 10⁻²
Bubble (m₁ = 1)	1.6 10⁻⁵	2.8 10⁻⁴	1.1 10⁻³	4.7 10⁻³	1.6 10⁻²	5.5 10⁻²

Abstract

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Applied Optics