Gallium Arsenide (GaAs) windows-Ideal-Photonics Inc

Gallium Arsenide (GaAs) windows

IdealPhotonics Gallium Arsenide is most useful in applications where toughness and durability are important. Its hardness and strength make it a good choice where dust or abrasive particles tend to build up on or bombard the optical surfaces. The material is non-hydroscopic , safe to use in laboratory and field conditions and is chemically stable except when in contact with strong acids.

Name	Part NO./Stock NO.	Description	Transmission Range	Size	Lead Time	Price
25.4mm x 5mm GaAs windows	GA-W-25-5	25.4mm Diameter by 5mm thick	1 to 11 μm	25.4mm Ø x 5.0mm	2-3 weeks	$425.00
25.4mm x 3mm GaAs windows	GA-W-25-3	25.4mm Diameter by 3mm thick	1 to 11 μm	25.4mm Ø x 3.0mm	in stock	$425.00
25.4mm x 2mm GaAs windows	GA-W-25-2	25.4mm Diameter by 2mm thick	1 to 11 μm	25.4mm Ø x 2.0mm	2-3 weeks	$265.00
25.4mm x 1mm GaAs windows	GA-W-25-1	25.4mm Diameter by 1mm thick	1 to 11 μm	25.4mm Ø x 1.0mm	2-3 weeks	$550.00
12.7mm x 2mm GaAs windows	GA-W-12-2	12.7mm Diameter by 2mm thick	1 to 11 μm	12.7mm Ø x 2.0mm	2-3 weeks	$165.00
12.7mm x 1mm GaAs windows	GA-W-12-1	12.7mm Diameter by 1mm thick	1 to 11 μm	12.7mm Ø x 1.0mm	2-3 weeks	$165.00

Features

● Excellent mechanical and environmental resistance

● Transmission in VIS and IR (0.35 to 14µm)

● Low scattering

● Chemically inert

● Non-hygroscopic

● Easily machined

Physical/Optical Characteristics

Transmission Range	1 – 11.0 µm
Crystal Structure	–
Cleavage Plane	None
Colour	Metalic lustre
Density	5.32
Melting Point (°)	1511
Reflection Loss	45% (12µ) for 2 surfaces
Solubility index	Insoluble
Hardness (Knoop)	731kg/mm2
Thermal Conductivity (cal/cm sec°C)	55W (m K) 300K
Thermal Expansion coefficient (/°C)	5.7x10-61/K at 300K

Polished Quality

Diameter Tolerance	+0/-0.005" (+0/-0.13 mm)
Thickness Tolerance	± 0.005" (± 0.13 mm)
Clear Aperture	85%
Parallelism	3 arc min
Flatness	1/10 wave at 10.6 microns
Surface Finish	60/40

Transmission Spectra

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Application

Due to its superior optical quality and excellent transmittance in UV, VIS and IR spectral ranges, Hellma Materials CaF2 can be used in versatile applications:

● IR optics

● Optics for astronomical instrumentation

● Space-based optics

● Microscope optics

● Spectroscopy optics

● UV optics

● Laser windows

● Excimer laser optics

● Microlithography optics

Gallium Arsenide (GaAs) windows

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