ABSTRACT

ZBL 62 33 5 ZBG 63 33 4 ZBGA 61 32 4 3 ZBT 60 33 7 ZTL 60 7 23 ZBAN 58 15 6 21 ZBLA 57 34 5 4 ZBGA 60 32 4 4 ZBLAL 52 20 5 3 20 ZBLYAL 49 22 3 3 3 20 ZBLAN 56 14 6 4 20

Optical Properties Glass Transmission Refractive Abbe !!nldT (lD-6/K) type range (J.lm) index n0 numbervd 435.8 nm 1060nm

ZBL 0.25-7.0 1.523 ZBT 0.32-6.8 1.53 ZBLA 0.29-7.0 1.521 62 ZBLAN 0.25-6.9 1.480 64 -14.5 (633 nm)

Mechanical Properties Glass Density Young's Poisson's Hardness Stress·optical type 3 (g/cm) modulusE ratio J.l (Knoop) coeff. K (TPa) -I

ZBL 4.78 60 0.31 228 ZBT 4.8 60 0.28 250 ZBLA 4.61 60.2 0.25 235 ZBLAN 4.52 60 0.31 225

Thermal Properties Thermal Thermal Specific Transformation Softening

Glass expansion conductivity heat temperature temperature type ( 10-6/K) (W/mK) ( J/g K) (K) (K)

ZBL 18.8 0.538 580 ZBT 4.3 0.511 568 723 ZBLA 18.7 0.534 588 ZBLAN 17.5 0.4 0.520 543

2.5.2 Fluorohafnate Glasses

HBL 62 33 5 HBT 60 33 7 HBLA 58 33 5 4

Optical Properties Glass Transmission Refractive Abbe dn/dT (lQ-6/K) type range (!lm) index n0 numbervd 435.8 nm 1060nm

HBL 0.25-7.3 1.498 HBT 0.22-7.7 1.53 HBLA 0.29-7.3 1.504

Mechanical Properties Glass Density Young's Poisson's Hardness Stress-optical type 3 (g!cm) modulus E ratio 11 (Knoop) coeff. K (TPa)·-1

HBL 5.78 55 0.3 228 HBT 6.2 55 0.3 250 HBLA 5.88 56 0.3 240

Thermal Properties Thermal Thermal Specific Transformation Softening

Glass expansion conductivity heat temperature temperature type (10-6/K) (W/mK) ( J/g K) (K) (K)

HBL 18.3 0.413 605 HBT 6.0 0.428 593 HBLA 17.3 0.414 580

Data in the tables of Sections 2.5.1 and 2.5.2 are from the Handbook of Optics, Vol. II (McGraw-Hill, New York, 1995), chapter 33, and references cited therein.