Tellurite And Fluorotellurite Glasses For Active And Passive

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7. Surface properties; MDO 275 CPS 10 8 6 4 2 x 10 5 Te 3d3/2 CasaXPS Te 3d5/2 Te 3d O 1s Name O 1s T e 3d W 4d Nb 3p W 4p1/2 Pos. 530.49 576.49 247.49 365.49 FW HM 2.369 2.164 4.095 3.076 Wide/2 Area 30602.2 78112.6 3265.1 4381.6 W 4p3/2 At% 76.120 18.604 1.460 3.815 Nb 3p1/2 Nb 3p3/2 Nb 3p C 1s W 4d3/2 W 4d W 4d5/2 550 500 450 400 350 300 250 Binding Energy (eV) Fig. (7.7): Wide scan XPS spectrum on a cleaved surface of glass MOD015 (82.5TeO2- 7.5WO3-10Nb2O5 mol. %). Fig. (7.8): High resolution O1s XPS spectrum on a cleaved surface of glass MOD015 (82.5TeO2-7.5WO3-10Nb2O5 mol. %), with deconvoluted components due to: bridging and non-bridging oxygens (O1s) and OH (O1s).
7. Surface properties; MDO 276 This peak was asymmetric, with a higher bonding energy shoulder at 532.4 eV (17.5 %), to the main peak at 530.9 eV (82.5 %). Table (7.4) summarises the quantitative analysis for this glass from the high resolution scans. Table (7.4): Quantitative analysis from high resolution XPS scans of cleaved glass MOD015 (82.5TeO2-7.5WO3-10Nb2O5 mol. %), and theoretical peak positions and atomic % batched. XPS peak Theoretical Peak / eV At. % High resolution XPS scan Peak / eV At. % Wt. % O 1s 530.4 68.35 530.9 66.67 20.49 Te 3d5/2 576.2 23.74 576.8 25.15 61.66 W 4d5/2 248.0 2.16 247.6 1.86 6.56 Nd 3d5/2 207.6 5.76 207.5 6.33 11.29 It can be seen that the at. % quantitative analysis were very close to the as-batched values (varying 2.5 to 13.9 %). <strong>For</strong> comparison, fig. (7.9) shows the wide scan of the polished surface of glass MOD015. The intense peak at around 285 eV was due to C1s, i.e. organic contamination at the surface. Fig. (7.10) shows the high resolution O1s scan from the polished surface (see section 6.1.1.1) of glass MOD015,
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TELLURITE AND FLUOROTELLURITE GLASS
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Abstract Glasses systems based on T
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Contents; MDO i Contents Contents i
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Contents; MDO iii 6.1.2.1. Method a
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Glossary; MDO Glossary aM = partial
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Glossary; MDO λ = wavelength λn =
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Glossary; MDO Ψ = complex dielectr
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1. Introduction; MDO 2 communicatio
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1. Introduction; MDO 4 Infrared tra
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1. Introduction; MDO 6 1.4. Thesis
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1. Introduction; MDO 8 [14] J. E. S
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2. Literature review; MDO 10 one of
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2. Literature review; MDO 12 superc
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2. Literature review; MDO 14 2.2.2.
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2. Literature review; MDO 16 phenom
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2. Literature review; MDO 18 tenden
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2. Literature review; MDO 20 crysta
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2. Literature review; MDO 22 the Za
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2. Literature review; MDO 26 Champa
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2. Literature review; MDO 28 the ad
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2. Literature review; MDO 30 (a) (b
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2. Literature review; MDO 32 showed
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2. Literature review; MDO 34 absorp
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2. Literature review; MDO 36 sharp
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2. Literature review; MDO 38 near f
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2. Literature review; MDO 40 where
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2. Literature review; MDO 42 Transm
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2. Literature review; MDO 44 origin
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2. Literature review; MDO 46 4 α =
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2. Literature review; MDO 48 Bragli
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2. Literature review; MDO 50 It can
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2. Literature review; MDO 52 and su
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2. Literature review; MDO 54 be bro
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2. Literature review; MDO 58 Table
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2. Literature review; MDO 62 [20] J
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2. Literature review; MDO 64 [47] S
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3. Glass batching and melting; MDO
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4. Thermal properties and glass sta
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5. Crystallisation studies; MDO 134
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6. Optical properties; MDO 166 75-5
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6. Optical properties; MDO 168 Fig.
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6. Optical properties; MDO 170 In r
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6. Optical properties; MDO 172 wher
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6. Optical properties; MDO 176 Abso
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6. Optical properties; MDO 178 ener
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6. Optical properties; MDO 180 6.1.
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6. Optical properties; MDO 182 ( n
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6. Optical properties; MDO 186 %),
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6. Optical properties; MDO 188 Tabl
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Percentage (%) 80 70 60 50 40 30 20
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6. Optical properties; MDO 204 Loss
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6. Optical properties; MDO 208 Tabl
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6. Optical properties; MDO 214 Loss
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Refractive index, n , at 632.8 nm 6
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7. Surface properties; MDO 326 Ther
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7. Surface properties; MDO 328 [2]
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8. Fibre drawing; MDO 330 8. Fibre
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8. Fibre drawing; MDO 332 The data
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8. Fibre drawing; MDO 334 Table (8.
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Preform 8. Fibre drawing; MDO 336 S
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8. Fibre drawing; MDO 338 (a) (b) F
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8. Fibre drawing; MDO 340 Log10(η)
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8. Fibre drawing; MDO 342 sectioned
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8. Fibre drawing; MDO 344 Fig. (8.9
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8. Fibre drawing; MDO 350 Crystals
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8. Fibre drawing; MDO 352 8.2.4. Op
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8. Fibre drawing; MDO 354 Table (8.
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8. Fibre drawing; MDO 356 confirmed
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8. Fibre drawing; MDO 358 Log10(η)
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8. Fibre drawing; MDO 360 It can be
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8. Fibre drawing; MDO 362 undercool
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8. Fibre drawing; MDO 364 1. 2. 3.
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8. Fibre drawing; MDO 366 cross-sha
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8. Fibre drawing; MDO 368 A small n
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8. Fibre drawing; MDO 370 particles
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8. Fibre drawing; MDO 372 8.5. Refe
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8. Fibre drawing; MDO 374 [25] D. M
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9. Conclusions; MDO 376 optical bas
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9. Conclusions; MDO 378 • The as-
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9. Conclusions; MDO 380 9.3. Optica
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9. Conclusions; MDO 382 • For fib
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9. Conclusions; MDO 384 edge across
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9. Conclusions; MDO 386 • For gla
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9. Conclusions; MDO 388 • The Ag
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9. Conclusions; MDO 390 • Increas
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9. Conclusions; MDO 392 [5] I. Shal
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10. Future work; MDO 394 Fig. (10.1
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Temperature / o C 10. Future work;
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Tellurite And Fluorotellurite Glasses For Active And Passive

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