FUSED QUARTZ VITREOSIL® 0770 pages

DATA SHEET

FUSED QUARTZ
VITREOSIL® 077

Vitreosil® 077 Optical Fused Quartz
Vitreosil® 077 optical fused quartz is manufactured by flame fusion of naturally occurring highpurity quartz crystal. Vitreosil® 077 has a useful transmission range from <260 nm in the near UV
through to >2 000 nm in the infrared.
* The optical properties of re-drawn rod and tube are not as shown in the table below
Vitreosil® 077 high-purity fused quartz has a useful transmission range from <260 nm in the UV to
>2 000 nm in the infrared
Optical PropertiesTypical Chemical Analysis
Vitreosil®Grade

077

Bubbles
Bubble class (DIN 58927)
Sum of CSA (mm 2 / 100 cm 3)
Maximum bubble diameter (mm)
Maximum number of inclusions (0.1 - 0.2 mm per 100 cm 3)
(Bubbles and inclusions < 0.1 mm are not counted)
Striae (MIL-G-174A) in functional direction (i.e. direction of view)
(The direct ion of view should be specified at t ime of enquiry / order)

Granularity
Residual strain (nm/ cm)
Fluorescence (254 nm excit ation)
Radiation resistance

B
Faint
<5
Blue / Violet
Slight darkening after
prolonged exposure
Darkens after 107 RAD

UV
X-Ray & Gamma Ray

Vitreosil® 077
Typical trace elements in ppm †

Al
Ca
Cr
Cu
Fe
K
Li
Mn
Na
Nd
Ti
Y
Zr
OH

0..1
< 0.1
0.5
2

15
0.5
< 0.01
< 0.01
0.1
0.2
0.2
0.01
0.1
0.01
1.3
< 0.1
1.3
170

† Chemical analysis can vary slightly between
individual bat ches of material