Electroplated Gold

Optiforms' Electro-deposited Gold (Au) platings are proven to outperform industry standard platings

Optiforms' Electroplated Gold (Au) Reflectance Data

Totally inert, Optiforms gold is highly reflective in the near to far infrared spectrum with excellent damage threshold performance.

Reflective scans for specific wavelenghts are available upon request and are typically based off of flat witness samples coated in the same lot as the actual substrate.

Reference Data for Optiforms Electroplated Gold (Au)

Deposit Purity: 99.986% minimum

Hardness: C (200 Knoop)

Thickness / Class: Based on Customer Specifications

Complies to ASTM B 488 & Mil-G-45204 - Type I, II, III Purity, Class C Hardness

Laser Damage Threshold Information:

Test Wavelength: 1070 nm
PRF: Continuous Wave

Irradiance	Damage	Total Tests
300.00	0	10
400.00	0	10
450.00	0	10
500.00	3	10
600.00	8	10
800.00	1	10
1000.00	1	10

Test Wavelength: 1064 nm
PRF: 10 Hz

Fluence	Damage	Total Tests
1.00	0	10
2.00	0	10
3.00	0	10
4.00	1	10
5.00	2	10
7.00	9	10

Test Wavelength: 10.6 µm
PRF: Continuous Wave

Irradiance	Damage	Total Tests
0.00	0	10
0.25	0	10
0.50	0	10
2.70	0	10
2.70	0	10

Test Wavelength: 10.6 µm
PRF: 1 Hz

Fluence	Damage	Total Tests
1.00	0	10
2.00	0	10
3.00	0	10
4.00	1	10
5.00	2	10
7.00	9	10

Laser Damage Threshold Specification and Certificate of Compliance Available Upon Request

Industry Standard Reference Material

Gold Purity

Mass Percent Gold, Minimum, Excluding Potassium, Carbon, & Nitrogen	New ASTM Type	MIL-DTL-45204	Old ASTM Type
99.70	I	I	2
99.00	II	II	3
99.90	III	III	1

Gold Hardness

Knoop Hardness Range	ASTM Code	MIL-DTL-45204 Grade
90 HK25 maximum	A	A
91 - 129 HK25	B	B
90 - 200 HK25	...	...
130 - 200 HK25	C	C
>200 HK25	D	D

Gold Thickness

Class	Minimum Thickness, µm
0.25	0.25
0.50	0.50
0.75	0.75
1.0	1.0
1.25	1.25
2.5	2.5
5.0	5.0

Applications

Laser Systems
Infrared Sensor Systems

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