Bevel:

Break Edges

Clear Aperture CA (mm):

46.75

Coating:

Laser V-Coat (355nm)

Coating Specification:

R_abs <0.25% @ 355nm

Diameter (mm):

55.00 ±0.1

Thickness (mm):

1.50 +0.15/-0.00

Design Wavelength DWL (nm):

355

Parallelism (arcmin):

<45

Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More

Fused Quartz

Surface Quality:

40-20

Transmitted Wavefront, P-V:

λ/2 (70% of Dia.)

Type:

Protective Window

Young's Modulus (GPa):

73

Coefficient of Thermal Expansion CTE (10^-6/°C):

0.52

Density (g/cm³):

2.2

Index of Refraction n_d:

1.458

Poisson's Ratio:

0.16

Abbe Number (v_d):

67.8

Edges:

Fine Ground

7.5 J/cm² @ 355nm, 20ns, 20Hz

55mm Dia. 355nm Laser Debris Shield

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