Laser Materials & Components

 
Optical Properties
S7000 S7005 S7010N
nd 1.5632 1.5623 1.5597
vd 55.3 55.1 55.3
n1054 nm (calculated) 1.553 1.552 1.549
n1540 nm (calculated) 1.550 1.549 1.547

 
Physical Properties
  S7000 S7005 S7010N
Density ρ [g/cm3] 2.88 2.88 2.88
Thermal Conductivity λ25°C [W/(m・K)] 0.84 0.84 0.84
Thermal Conductivity λ90°C [W/(m・K)] 0.92 0.92 0.92
Young's Modulus E [103 N/mm2] 78 79 78
Poisson's Ratio µ 0.25 0.25 0.25
Thermal Expansion α(+20/+300°C) [10–6/K] 11.3 11.4 11.4
Transformation Temperature Tg [°C] 454 456 453

 
Chemical Properties
  S7000 S7005 S7010N
Water Loss in 50°C Water [mg/(cm2・d)] 0.011 0.012 0.013
SR 1.0 1.0 1.0
AR 1.0 1.0 1.0
FR 0 0 0
CR 1 1 1

 
Specifications
Length max. 120 mm
Holes diameter min. 8 mm
Parallelism 0.05 mm
Min. Wall Thickness 1 mm
Tolerances of Dimensions According to ISO2768-F
Surface Quality (inner/outer) Fine ground or polished
 

ZERODUR 

Mean coefficient of linear thermal expansion of ZERODUR® K20
CTE (20 °C; 700 °C) 2.4 ・ 10-6/K
CTE (20 °C; 300 °C) 2.2 ・ 10-6/K
CTE (0 °C; 50 °C) 1.6 ・ 10-6/K
 
  Standard Class 4 Class 3 Glass 2 Class 1 Class 0
Average number of inclusions per 100 cm3 5.0 5.0 4.0 3.0 2.0 1.0
Maximum diameter of individual inclusions in mm for different diameters or
diagonals of the ZERODUR® part
In the critical volume:
< 500 mm 1.4 1.2 1.0 0.8 0.6 0.4
< 2000 mm 2.0 1.8 1.6 1.5 1.2 1.0
< 4000 mm 3.0 2.5 2.0 1.8 1.6 1.5
Individual specifications upon request
In the uncritical volume:  
< 500 mm 3.0 2.0 1.5 1.0 0.8 0.6
< 2000 mm 6.0 5.0 4.0 3.0 3.0 3.0
< 4000 mm 10.0 8.0 6.0 6.0 6.0 6.0
Individual specifications upon request
 
Bulk stress birefringence [nm/cm]
for parts with diameters or diagonals		 Standard Class 4
< 500 mm 6 4
< 2000 mm 12 10
< 4000 mm 15 12
Individual specifications upon request
 
Stress birefringence caused
by striae [nm/striae] for parts
with diameters or diagonals		 Standard Class 4 Class 3 Class 2 Class 1
< 500 mm 60 45 30 5  
< 2000 mm 60 45 30 30 5
< 4000 mm 60 45 30 30 30
 
 
  Dimension < 2000 mm Dimension ≤ 4000 mm
  Tolerances [mm] Tighter tolerances [mm]* Tolerances [mm] Tighter tolerances [mm]*
Length, width, height ± 0.3 ± 0.1 ± 0.4 ± 0.2
Diameter ± 0.3 ± 0.1 ± 0.4 ± 0.2
Angle ± 5’ ± 1’ ± 5’ ± 1’
Flatness ** 0.1 - 0.2 0.05 0.2 0.1
Cylindricity ** 0.1 0.05 0.2 0.1
Profile ** 0.2 0.1 0.4 0.2
Parallelism ** 0.1 - 0.2 0.05 0.2 0.1
Position ** 0.1 0.05 0.2 0.1
Concentricity ** 0.1 0.05 0.2 0.1
Run-out ** 0.1 0.05 0.2 0.1

* tighter tolerances depend on the size and geometry. They cannot be combined freely.
** according ISO 1101

 
Typical mechanical and optical properties
  ZERODUR® ZERODUR® K20
Thermal Conductivity λ at 20°C [W/(m・K)] 1.46 1.63
Thermal diffusivity index a at 20°C [10-6 m2/s] 0.72 -
Heat capacity cp at 20°C [J/(g · K)] 0.80 0.90
Young's modulus E at 20°C [GPa]-mean value 90.3 84.7
Poisson‘s ratio 0.24 0.25
Density [g/cm3] 2.53 2.53
Knoop Hardness HK 0,1/20 (ISO9385) 620 620
Refractive index nd 1.5424 -
Abbe number νd 56.1 -
Internal transmittance at 580 nm
5 mm thickness 0.95 -
10 mm thickness 0.90 -
Stress optical coefficient K at λ = 589.3 nm [10-6 MPa-1] 3.0 -
Electrical resistivity ρ at 20°C [Ω · cm] 2.6 · 1013 -
Tk100 [°C], Temperature for ρ = 108 [Ω · cm] 178 -

Typical chemical properties
  ZERODUR® ZERODUR® K20
Hydrolytic resistance class (ISO 719) HGB 1 -
Acid resistance class (ISO 8424) 1.0 -
Alkali resistance class (ISO 10629) 1.0 -
Climate resistance Class 1 -
Stain resistance Class 0 -
Helium permeability [Atoms/(cm · s · bar)]
at 20°C 1.6 · 106 -
at 100°C 5.0 · 107 -
at 200°C 7.2 · 108 -

Ceramic Phosphor Laser Converter

 
Dynamic
Static
Yellow phosphor material ✓ ✓
Green phosphor material ✓ ✓
White phosphor material   ✓


 
 
Dynamic
Static
Optical Specifications
Phosphor conversion efficacy ✓ ✓
Emission color coordinates ✓ ✓
Material properties
Thermal quenching stability ✓  
Temperature damage threshold ✓  
Thermal conductivity in temperature range ✓  
Irradiance Limit   ✓



 

NIR Cutoff

 
 BG60 BG61 BG62 BG66 BG67 BG57
refractive index ne 1.5399 1.5370 1.5417 1.5430 1.5427 1.5547
nd 1.5379 1.5350 1.5397 1.5418 1.5405 1.5523
Cutoff wavelength λ0.5 633 nm 648 nm 644 nm 634 nm 632 nm 634 nm
at thickness 0.3 mm 0.3 mm 0.21 mm 0.21 mm  0.175 mm 0.11 mm
 
 
 BG18 BG38 BG39 BG40 BG42 BG50 BG55 S8612
Cutoff wavelength λ0.5 595 nm 646 nm 603 nm 635 nm 595 nm 626 nm 596 nm 599 nm
at thickness 1 mm
 
 
 S8022 S8023 VG20
Cutoff wavelength λ0.5 553 nm 565 nm 562 nm
at thickness 1 mm
  NVIS Green A at
Planck illumination
(1550 K - 3200 K)		 NVIS White at
neutral and warm
white LED light


Optical Coatings

AR COATINGS

 
Coating Type Wavelength Range (nm) Reflectance AOI typical LIDT Scratch / Dig Sizes up to
V-shape AR 248 - 1650 < 0.1 % 0° - 15° - Up to 20/10 Ø 300 mm
Broadband AR 248 - 1650 < 0.5 % 0° - 15° - Up to 20/10 Ø 300 mm
Scratch Resistant Hard AR 420 - 1100 < 1.5 % 0° - 30° - 40/20 up to 20/10 Ø 300 mm
Low Defect AR 380 - 780 < 0.5 % 0° - 15° - < 10/5 60 x 60 mm²
Laser Line AR 500 - 1650 < 0,2 % 0° - 15° 30 J/cm² (1064 nm, 10 ns)
10 J/cm² (532 nm, 10 ns)		 20/10 up to 10/5 150 x 150 mm²
Multi Line AR 248 - 1650 < 1 % 0° - 15° 20 J/cm² (1064 nm, 10 ns) 20/10 up to 10/5 Ø 300 mm
Other AOI ranges are available upon request. Reflectance depends on the required bandwidths and number of laser lines or bands. LIDT values depend on the laser type, pulse duration and wavelength.


MIRROR COATINGS

 
Coating Type Wavelength Range (nm) Reflectance AOI typical LIDT Scratch / Dig Sizes up to
Broadband Dielectric Mirror 248  - 1650 > 99 % 0° - 45° - Up to 20/10 Ø 300 mm
Laser Line Dielectric Mirror 248  - 1650 > 99.95 % 0° - 45° 30 J/cm² (1064 nm, 10 ns)
10 J/cm² (532 nm, 10 ns)		 40/20 up to 10/5 Ø 300 mm
Multi Line Dielectric Mirror 420  - 1100 > 99.9 % 0° - 45° 20 J/cm² (1064 nm, 10 ns) 40/20 up to 10/5 Ø 300 mm
Metallic Mirrors
(protective & enhanced)		 Al: 200  - 15,000
Ag: 450 - 15,000
Au: 600 - 15,000		 > 85 %
> 97 %
> 96 %		 0° - 60° - 40/20 Ø 300 mm
Other AOI ranges are available upon request. Reflectance depends on the required bandwidths and number of laser lines or bands. LIDT values depend on the laser type, pulse duration and wavelength.


EDGE & BANDPASS FILTERS

 
Coating Type Transmission
Range (nm)		 Passband Transmission FWHM CWL Tolerance Slope Edge / FWHM Tolerance Blocking Range (nm) Blocking Scratch / Dig Typical Sizes (mm)
Bandpass Filter 280 - 2500 Ø > 95 % 25 – 150 nm typical +/- 1 % < 0.5 %  +/- 1 % 200 – 5000 > OD 3 up to
> OD 6		 60/40 up to 20/10 5 x 5 up to
Ø 200
Narrow Bandpass Filters 350 - 2000 Ø > 95 % < 2% CWL +/- 0.3 % < 0.5 % < 1 nm 200 – 5000 > OD 4 up to
> OD 6		 60/40 up to 20/10 5 x 5 up to
Ø 100
Extremely-Narrow Bandpass Filter 450 - 1100 Ø > 90 % < 1 % CWL +/- 0.2 % < 0.5 % < 0,5 nm 200 – 5000 > OD 4 up to
> OD 6		 60/40 up to 20/10 5 x 5 up to
Ø 70
Multi-Bandpass Filter 280 - 2500 Ø > 90 % 20 – 25 nm typical +/- 0.2 % < 1 %  +/- 1 % 200 – 5000 > OD 4 up to
> OD 6		 60/40 up to 20/10 5 x 5 up to
Ø 150
i-line Bandpass Filter 365, 405, 463 min. > 80 % < 3 nm +/- 0.2 % < 0.5 % < 0,5 nm 220 - 450 OD 2 - 3 40/20 Ø 100 up to Ø 160
UV-Bandpass Filter 200 - 350 15 - 30 % 6 - 15 nm +/- 0.5 % < 5 % < 2 % 200 - 600 > OD 4 40/20 Ø 10 up to
Ø 25
Multi-Notch Filters 280 - 2500 Ø > 90 % 20 – 25 nm typical +/- 0.2 % < 1 % < 0,5 % 200 – 5000 > OD 4 up to > OD 6 60/40 up to 20/10 5 x 5 up to
Ø 150
Steep Edge Short- & Longpass Filters 280 - 2500 Ø > 95 % - - < 0.5 % +/- 0,2 % 200 – 5000 > OD 4 up to
> OD 6		 60/40 up to 20/10 5 x 5 up to
Ø 70