Post on 12-Aug-2020
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Germanium (Ge), 3-5μmGermanium (Ge), 8-12 μmSilicon (Si), 3-5μm
IR Thermal Imaging Coatings
High-Efficiency Broadband Anti-Reflective (BBAR) Coating onGermanium (Ge), 3 - 5μm
High-Efficiency Broadband Coating for the 3 - 5μm range gives low reflection and hightransmission for use in passive imagingsystems. This coating is not intended for high power laser applications.
Application
Transmission when measured through a 3mmthick Ge substrate coated on both surfaceswith the broadband AR coating.
T >= 98.0% average from 3 - 5μm
Reflection from a single surface when coatedwith the broadband AR coating.
R <= 0.5% average from 3 - 5μm
This coating can be modified for similar performance at other wavelengths.
Spectral Performance
High-Efficiency Broadband Anti-Reflective Coating on Ge for 3-5μm Transmission vs. Wavelength
80
82
84
86
88
90
92
94
96
98
100
2.5 3 3.5 4 4.5 5 5.5
Wavelength (μm)
%Tr
ansm
issi
on
High-Efficiency Broadband Anti-Reflective Coating on Ge for 3-5μm Reflection vs. Wavelength
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
2.5 3.0 3.5 4.0 4.5 5.0 5.5
Wavelength (μm)
%R
efle
ctio
n pe
r Sur
face
This coating is designed to meet durabilityrequirements of the following MIL Specifications:
Adhesion MIL-C-48497 MIL-C-675C
Humidity MIL-C-48497 MIL-C-675C
Moderate MIL-C-48497Abrasion MIL-C-675C
Environmental Performance
rev. May 2003 BAR0703050
2/22/10
High-Efficiency Broadband Anti-Reflective (BBAR) Coating onGermanium (Ge), 8 - 12 μm
This low reflection/high transmission coating isdesigned to cover the 8-12μm region andsatisfies the environmental requirements listedbelow.
This low reflectance coating is intended to beused in FLIR or passive radiation systems.
Application
Transmission when measured through a 1mmthick Ge substrate coated on both surfaceswith the broadband AR coating.
T >= 98% average from 8 - 12μm
Reflection from a single surface when coatedwith the broadband AR coating.
R <= 0.5% average per surface from 8 - 12μm
This coating can be modified for similar performance at other wavelengths.
Spectral Performance
High-Efficiency Broadband Anti-Reflective Coating on Ge for 8-12μm RegionTransmission vs. Wavelength
90.0
91.0
92.0
93.0
94.0
95.0
96.0
97.0
98.0
99.0
100.0
6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 12.5 13 13.5 14
Wavelength (μm)
%Tr
ansm
issi
on
High-Efficiency Broadband Anti-Reflective Coating on Ge for 8-12μm RegionReflection vs. Wavelength
0.0
0.6
1.1
1.7
2.2
2.8
3.3
3.9
4.4
5.0
6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 12.5 13 13.5 14
Wavelength (μm)
%R
efle
ctio
n pe
r Sur
face
This coating is designed to meet durabilityrequirements of the following MIL specifications:
Adhesion MIL-C-48497 MIL-C-675C
Humidity MIL-C-48497 MIL-C-675C
Moderate MIL-C-48497Abrasion MIL-C-675C
II-VI will supply certification upon request.
Environmental Performance
rev. May 2003 BBAR070105
2/23/10
High-Efficiency Broadband Anti-Reflective (BBAR) Coating onSilicon (Si), 3 - 5μm
High-Efficiency Broadband Coating for the 3 - 5μm range gives low reflection and hightransmission for use in passive imagingsystems. This coating is not intended for high power laser applications.
Application
Transmission when measured through a 3mmthick Si substrate coated on both surfaces withthe broadband AR coating.
T >= 98.0% average from 3 - 5μm
Reflection from a single surface when coatedwith the broadband AR coating.
R <= 0.5% average from 3 - 5μm
This coating can be modified for similar performance at other wavelengths.
Spectral Performance
High-Efficiency Broadband Anti-Reflective Coating on Si for 3-5μm Transmission vs. Wavelength
80
82
84
86
88
90
92
94
96
98
100
2.5 3 3.5 4 4.5 5 5.5
Wavelength (μm)
%Tr
ansm
issi
on
High-Efficiency Broadband Anti-Reflective Coating on Si for 3-5μm Reflection vs. Wavelength
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
2.5 3.0 3.5 4.0 4.5 5.0 5.5
Wavelength (μm)
%R
efle
ctio
n pe
r Sur
face
This coating is designed to meet durabilityrequirements of the following MIL Specifications:
Adhesion MIL-C-48497 MIL-C-675C
Humidity MIL-C-48497 MIL-C-675C
Moderate MIL-C-48497Abrasion MIL-C-675C
Environmental Performance
rev. May 2003 BAR0803050
2/24/10
High-Efficiency Broadband Anti-Reflective (BBAR) Coating onZinc Sulfide MultiSpectral (ZnS MS), 3 - 5μm
High-Efficiency Broadband Coating for the 3 - 5μm range gives low reflection and hightransmission for use in passive imagingsystems. This coating is not intended for high power laser applications.
Application
Transmission when measured through a 3mmthick ZnS MS substrate coated on both surfaces with the broadband AR coating.
T >= 98.0% average from 3 - 5μm
Reflection from a single surface when coatedwith the broadband AR coating.
R <= 0.5% average from 3 - 5μm
This coating can be modified for similar performance at other wavelengths.
Spectral Performance
High-Efficiency Broadband Anti-Reflective Coating on ZnS MS for 3-5μmTransmission vs. Wavelength
80
82
84
86
88
90
92
94
96
98
100
2.50 3.00 3.50 4.00 4.50 5.00 5.50
Wavelength (μm)
%Tr
ansm
issi
on
High-Efficiency Broadband Anti-Reflective Coating on ZnS MS for 3-5μm Reflection vs. Wavelength
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
2.5 3.0 3.5 4.0 4.5 5.0 5.5
Wavelength (μm)
%Re
flect
ion
per S
urfa
ce
This coating is designed to meet durabilityrequirements of the following MIL Specifications:
Adhesion MIL-C-48497 MIL-C-675C
Humidity MIL-C-48497 MIL-C-675C
Moderate MIL-C-48497Abrasion MIL-C-675C
Environmental Performance
rev. May 2003 BAR0403050
2/25/10
High-Efficiency Broadband Anti-Reflective (BBAR) Coating onZinc Sulfide MultiSpectral (ZnS MS) and Zinc Sulfide Regular (ZnS), 8 - 12μm
This low reflection/high transmission coating isdesigned to cover the 8 - 12μm region andsatisfy the environmental requirements listedbelow. While low in absorption it is intented to be used in FLIR or passive radiation systems.
This coating can be applied to ZnS Regularand ZnS MultiSpectral Grades.
Application
Transmission when measured through a 3mmthick ZnSe substrate coated on both surfaceswith the broadband AR coating.
T >= 92.5% average from 8 - 12μm
Reflection from a single surface when coatedwith the broadband AR coating.
R <= 0.5% average per surface 8 - 12μm R <= 1.0% absolute per surface 8 - 12μm
This coating can be modified for similar performance at other wavelengths.
Spectral Performance
High-Efficiency Broadband Anti-Reflection Coating on ZnS (MS) for the 8-12μm Region
Transmission vs. Wavelength
60
65
70
75
80
85
90
95
100
6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 12.5 13 13.5 14
Wavelength (μm)
%Tr
ansm
issi
on
High-Efficiency Broadband Anti-Reflection Coating on ZnS (MS) for the 8-12μm Region
Reflection vs. Wavelength
0
1
2
3
4
5
6
7
8
9
10
6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 12.5 13 13.5 14
Wavelength (μm)
%R
efle
ctio
n pe
r Sur
face
This coating is designed to meet durabilityrequirements of the following MIL Specifications:
Adhesion MIL-C-48497 MIL-C-675C
Humidity MIL-C-48497 MIL-C-675C
Moderate MIL-C-48497Abrasion MIL-C-675C
Environmental Performance
rev. April 2003 BAR040812
2/26/10
High-Efficiency Broadband Anti-Reflective (BBAR) Coating onZinc Selenide (ZnSe), 3 - 5μm
High-Efficiency Broadband Coating for the 3 - 5μm range gives low reflection and hightransmission for use in passive imagingsystems. This coating is not intended for high power laser applications.
Application
Transmission when measured through a 3mmthick ZnSe substrate coated on both surfaceswith the broadband AR coating.
T >= 98.0% average from 3 - 5μm
Reflection from a single surface when coatedwith the broadband AR coating.
R <= 0.5% average from 3 - 5μm
This coating can be modified for similar performance at other wavelengths.
Spectral Performance
High-Efficiency Broadband Anti-Reflective Coating on ZnSe for 3-5μm Transmission vs. Wavelength
90
91
92
93
94
95
96
97
98
99
100
2 2.5 3 3.5 4 4.5 5 5.5 6
Wavelength (μm)
%Tr
ansm
issi
on
High-Efficiency Broadband Anti-Reflective Coating on ZnSe for 3-5μmReflectance vs. Wavelength
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
2 2.5 3 3.5 4 4.5 5 5.5 6
Wavelength (μm)
%Re
flect
ion
per S
urfa
ce
This coating is designed to meet durabilityrequirements of the following MIL Specifications:
Adhesion MIL-C-48497 MIL-C-675C
Humidity MIL-C-48497 MIL-C-675C
Moderate MIL-C-48497Abrasion MIL-C-675C
Environmental Performance
rev. May 2003 BAR0503050
2/27/10
High-Efficiency Broadband Anti-Reflective (BBAR) Coating onZinc Selenide (ZnSe), 8 - 12 μm
This low reflection/high transmission coating isdesigned to cover the 8 - 12μm region andsatisfies the environmental requirements listedbelow.
This low reflectance coating is intended to beused in FLIR or passive radiation systems.
Application
Transmission when measured through a 3mmthick ZnSe substrate coated on both surfaceswith the broadband AR coating.
T >= 98% average from 8 - 12μm
Reflection from a single surface when coatedwith the broadband AR coating.
R <= 0.5% average per surface from 8 - 12μm
This coating can be modified for similar performance at other wavelengths.
Spectral Performance
High-Efficiency Broadband Anti-Reflection Coating on ZnSe for the 8-12μm Region
Transmission vs. Wavelength
90
91
92
93
94
95
96
97
98
99
100
6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 12.5 13 13.5 14
Wavelength (μm)
%Tr
ansm
issi
on
High-Efficiency Broadband Anti-Reflection Coating on ZnSe for the 8-12μm Region
Reflection vs. Wavelength
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 12.5 13 13.5 14
Wavelength (μm)
%R
efle
ctio
n pe
r Sur
fac e
This coating is designed to meet durabilityrequirements of the following MIL specifications:
Adhesion MIL-C-48497 MIL-C-675C
Humidity MIL-C-48497 MIL-C-675C
Moderate MIL-C-48497Abrasion MIL-C-675C
II-VI will supply certification upon request.
Environmental Performance
rev. April 2003 BAR050812
2/28/10
High-Efficiency Dual Broadband (DBBAR) Coating on Germanium (Ge) for 3 - 5μm and 8 - 12μm
This coating is designed to give low reflectance and high transmittance when usedin passive imaging systems. This coating isnot intended for high power laser applications.
Application
Transmission when measured on a 3mm thickGe substrate coated on both surfaces with thedual broadband AR coating.
T >= 90% average from 3 - 5μmT >= 95% average from 8 - 12μm
Reflection from a single surface when coatedwith the dual broadband AR coating.
R <= 5.0% average from 3 - 5μmR <= 2.5% average from 8 - 12μm
This coating can be modified for similar performance at other wavelengths.
Spectral Performance
High-Efficiency Dual Broadband Coating on Ge for 3-5μm and 8-12μm
Transmission vs. Wavelength
60
65
70
75
80
85
90
95
100
2.5 3.5 4.5 5.5 6.5 7.5 8.5 9.5 10.5 11.5 12.5
Wavelength (μm)
%Tr
ansm
issi
on
High-Efficiency Dual Broadband Coating on Ge for 3-5μm and 8-12μm
Reflection vs. Wavelength
0
2
4
6
8
10
12
14
16
18
20
2.5 3.5 4.5 5.5 6.5 7.5 8.5 9.5 10.5 11.5 12.5
Wavelength (μm)
%R
efle
ctio
n pe
r Sur
face
This coating is designed to meet durabilityrequirements of the following MIL Specifications:
Adhesion MIL-C-48497 MIL-C-675C
Humidity MIL-C-48497 MIL-C-675C
Moderate MIL-C-48497Abrasion MIL-C-675C
II-VI will supply certification on request.
Environmental Performance
rev. April 2003 DBAR07035812
2/29/10
High-Efficiency Dual Broadband (DBBAR) Coating on Zinc Selenide (ZnSe) for 3 - 5μm and 8 - 12μm
This coating is designed to give low reflectance and high transmittance when usedin passive imaging systems. This coating isnot intended for high power laser applications.
Application
Transmission when measured on a 3mm thickZnSe substrate coated on both surfaces with the dual broadband AR coating.
T > 90% average from 3 - 5μmT > 95% average from 8 - 12μm
Reflection from a single surface when coatedwith the dual broadband AR coating.
R < 5.0% average from 3 - 5μmR < 2.5% average from 8 - 12μm
This coating can be modified for similar performance at other wavelengths.
Spectral Performance
High-Efficiency Dual Broadband Coating on ZnSe for 3-5μm and 8-12μm
Transmission vs. Wavelength
60
65
70
75
80
85
90
95
100
2.5 3.5 4.5 5.5 6.5 7.5 8.5 9.5 10.5 11.5 12.5
Wavelength (μm)
%Tr
ansm
issi
n
High-Efficiency Dual Broadband Coating on ZnSe for 3-5μm and 8-12μm
Reflection vs. Wavelength
0
1
2
3
4
5
6
7
8
9
10
2.5 3.5 4.5 5.5 6.5 7.5 8.5 9.5 10.5 11.5 12.5
Wavelength (μm)
%R
efle
ctio
n pe
r Sur
face
This coating is designed to meet durabilityrequirements of the following MIL Specifications:
Adhesion MIL-C-48497 MIL-C-675C
Humidity MIL-C-48497 MIL-C-675C
Moderate MIL-C-48497Abrasion MIL-C-675C
II-VI will supply certification on request
Environmental Performance
rev. April 2003 DBAR050312
2/210/10