Wavelength > 2500 nm
2810 | 2940 | 3300 | 4000 nm

Er:YLF/YAG • OPO

MIR > 2500 nm

Coating types
VAR
AR
  • VAR
  • DAR
  • TAR
  • BBAR
  • MAR
  • WAR
VAR
VAR
λ [nm]AR (0°); R < methodAR (45°); R < method
2940 0.25% on CaF2 EBE 1% on CaF2 EBE
  0.05-0.1% * on Sapphire IBS 0.1%-0.6% * on Sapphire IBS
3300 0.3% on CaF2 EBE 1% on CaF2 EBE
4000 0.5% on CaF2 EBE 1% on CaF2 EBE

* depending on price, substrate size and laser power

HR
HR
  • HR
  • DHR
  • BBHR
  • MHR
  • WHR
  • Metal
HR
HR
λ [nm]HR (0°); R > methodHR (45°); R > method
2810 99.8% on CaF2 EBE 99.7% on CaF2 EBE
2940 99.7% on CaF2 EBE 99.7% on CaF2 EBE
  99.9xx%* on YAG IBS 99.9xx%* on YAG IBS
3300 99.7% on CaF2 EBE 99.7% on CaF2 EBE
4000 99.5% on CaF2 EBE 99.5% on CaF2 EBE

* 99.9xx% means that we can optimize the reflection/transmission to your needs.

TFP
POLARIZER
  • TFP
  • CP
  • BBPOL
TFP
TFP
λ [nm] AOImethod
4000 Tp > 95%, Ts < 2% Brewster EBE
VA
VARIABLES
  • VA
  • GOC
  • GP
  • GNF
  • GIF
VA
VA
λ [nm]0°→ 45°; T = method
2940 90% → 1% on CaF2 EBE

 

LASEROPTIK has a dedicated EBE coating machine for infrared coatings made with non-radioacti­ve ma­te­rials. Due to national environmental regulations we do not use ThF4, but still cover a ran­ge of up to λ = 4 µm for reflecting systems and up to λ = 10.6 µm for anti­-reflecting systems.

Coatings are applied on various IR substrates such as Ge, ZnSe, Sapphire, CaF2 and others. Metal coatings are also available for IR applications.

All values are given for standard coatings. Customized coatings available for all types.

Coating methods available:

EBEIADIPMSIBS

Examples

If not mentioned otherwise, all values and diagrams are given

... for the standard substrate material used in the described wavelength area (mostly Fused Silica or CaF2).

... without consideration of the rear surface.

... with EBE coating technique for a good cost-performance ratio.

Customized coatings are available for all types.

 

–––– dashed lines show the zoomed curve with the stated magnification

AR 4000 nm / 0° on CaF2
[B-02246]AR 4000 nm / 0° on CaF2

4000 nm: R < 0.5%

HR 2940 nm / 45°
[B-06023]HR 2940 nm / 45°

2940 nm: R > 99.7%

R 50% 2700-3300 nm / 45°
[B-04184]R 50% 2700-3300 nm / 45°

2700-3300 nm: Ru ± 5% vs theoretical curve

TFP 4000 nm / 55° on CaF<sub>2</sub>
[B-02823]TFP 4000 nm / 55° on CaF2

4000 nm: Tp > 95%, Ts < 2%

VA 2940 nm / 0-45° T 90-1% on CaF<sub>2</sub>
[B-03940]VA 2940 nm / 0-45° T 90-1% on CaF2

2940 nm: 0° -> 45°; T = 90% -> 1%

Au + Protection Layer
[B-06039]Au + Protection Layer

IR: R > 97%

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