AGSe Crystals, 5mm Length

Silver Gallium Selenide (AGSe) is an optically negative uniaxial crystal with reasonable transmittance in the region of approximately 0.7 μm - 18 μm. AGSe crystals have one of the highest quality factors among commercially available mid-infrared nonlinear crystals, six times that of the corresponding AGS crystals. AGSe is also a better choice than other mid-IR crystals for some special reasons.

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Catalog Number

ACMA00027402

Product Name

AGSe Crystals, 5mm Length

Molecular Formula

AgGaSe2

Melting Point

851 °C

Width

5 mm

Height

5 mm

Length

5 mm

DimensionTolerance

W±0.1mm/H±0.1mm/L±0.2mm

Theta(Θ)

39°

Phi(Φ)

45°

Coating

BBAR@1.7-2.7 μm/ BBAR@5-18 μm

Parallelism

<30 arcsec

Perpendicularity

<10 arcmin

Surface Quality

60-40 S-D

ClearAperture

>80%

Crystal Structure

Tetragonal, 42m

Lattice Parameters

a= 5.9920 Å, c= 10,.8803 Å

Optical Symmetry

Negative uniaxial (no > ne, λ < 804 nm ne > no)

Density

5.7 g/cm³

Transparency Region

0.71 - 19 µm @“0“ transmittance level

Refractive Indices

n(1.06 µm) no=2.7005, ne=2.6759 (5.3 µm) no=2.6140, ne=2.5823 ( 10.6 µm) no=2.5915, ne=2.5585

Walk Off Angle

0.67 deg at 5.3 µm

Expansion Coefficient

(Thermal expansion coefficient) 1.4 (||c) Wm-1K-1, 1.5 (⊥ c) Wm-1K-1

Damage Threshold

>10 MW/cm²@10.6 μm, 150 ns

Sellmeier Equations

no²=6.8507+0.4297/(λ²-0.1584)-0.00125 λ²; ne²=6.6792+0.4598/(λ²-0.2122)-0.00126 λ²

Moh'sHardness

3-3.5

MSDS

COA

Spec Sheet

Features And Benefits

AgGaSe2 crystals have band edges at 0.73 and 18 µm. When pumped by a variety of different lasers, its useful transmission range (0.9–16 µm) and wide phase matching capability offer excellent potential for OPO applications.

Application

1. Frequency mix in IR region from 4.0 to 18.3 µm 2. Second harmonic generation and up-conversion of CO2 lasers 3. Tunable OPO for solid state laser with up to 10% efficiency

• Catalog Number: ACMA00027402
• Product Name: AGSe Crystals, 5mm Length
• Molecular Formula: AgGaSe2
• Melting Point: 851 °C
• Width: 5 mm
• Height: 5 mm
• Length: 5 mm
• DimensionTolerance: W±0.1mm/H±0.1mm/L±0.2mm
• Theta(Θ): 39°
• Phi(Φ): 45°
• Coating: BBAR@1.7-2.7 μm/ BBAR@5-18 μm
• Parallelism: <30 arcsec
• Perpendicularity: <10 arcmin
• Surface Quality: 60-40 S-D
• ClearAperture: >80%
• Crystal Structure: Tetragonal, 42m
• Lattice Parameters: a= 5.9920 Å, c= 10,.8803 Å
• Optical Symmetry: Negative uniaxial (no > ne, λ < 804 nm ne > no)
• Density: 5.7 g/cm³
• Transparency Region: 0.71 - 19 µm @“0“ transmittance level
• Refractive Indices: n(1.06 µm) no=2.7005, ne=2.6759 (5.3 µm) no=2.6140, ne=2.5823 ( 10.6 µm) no=2.5915, ne=2.5585
• Walk Off Angle: 0.67 deg at 5.3 µm
• Expansion Coefficient: (Thermal expansion coefficient) 1.4 (||c) Wm-1K-1, 1.5 (⊥ c) Wm-1K-1
• Damage Threshold: >10 MW/cm²@10.6 μm, 150 ns
• Sellmeier Equations: no²=6.8507+0.4297/(λ²-0.1584)-0.00125 λ²; ne²=6.6792+0.4598/(λ²-0.2122)-0.00126 λ²
• Moh'sHardness: 3-3.5