Type1 SHG@532nm KDP Crystals, 5mm Length

Potassium dihydrogen phosphate (KKDP) and potassium dideuterium phosphate (DKDP) crystals are among the oldest nonlinear materials. Both DKDP and KDP exhibit excellent UV transmittance and high damage threshold. The nonlinearity of these crystals is relatively low, and these crystals can be grown in large sizes.

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Catalog Number

ACMA00027377

Product Name

Type1 SHG@532nm KDP Crystals, 5mm Length

Molecular Formula

KH2PO4

Width

12 mm

Height

12 mm

Length

5 mm

DimensionTolerance

W±0.1mm/H±0.1mm/L±0.2mm

Theta(Θ)

76.5°

Phi(Φ)

45°

Coating

AR/AR@532/266 nm

Flatness

λ/6 @ 633 nm

Parallelism

< 20 arcsec

Perpendicularity

< 5 arcmin

Angle Tolerance

< 30 arcmin

ApertureTolerance

± 0.1 mm

Surface Quality

20/10 scratch & dig

ClearAperture

90% of full aperture

Crystal Structure

Tetragonal, 42m

Lattice Parameters

a= 7.448 Å, c= 6.977 Å

Optical Symmetry

Negative uniaxial (no > ne)

Density

2.332 g/cm³

Transparency Region

180 nm~1.5 μm

Refractive Indices

no = 1.4938, ne = 1.4599 @1.06 µm

NLO Coefficients

Type1 dooe=d36xsinθxsin2φ Type2 deoe=d36xsin2θxcos2φ

Expansion Coefficient

(Thermal expansion coefficient) a11= 2.5×10^-5 K^-1 a33= 4.4×10^-5 K^-1

Thermal Conductivity

k11= 1.9×10^-2 W/cm×K

Sellmeier Equations

no²=2.259276+13.00522 λ²/(λ²-400)+0.01008956/(λ²-(77.26408)^-1); ne²=2.132668+3.2279924 λ²/(λ²-400)+0.008637494/(λ²-(81.42631)²)

Hygroscopicity

high

Transmission

0.18~1.5 μm

Residual Absorption

0.04 cm^-1 (at 1.06 μm)

Moh'sHardness

2.5

MSDS

COA

Spec Sheet

Features And Benefits

1. Excellent UV transmittance 2. High laser damage threshold 3. Crystals are highly hygroscopic, so a sealed enclosure and dry operating conditions must be ensured.

Application

DKDP and KDP can be used as nonlinear frequency doublers, triplers and quadruples for Nd-doped lasers, and as Q-switching devices for Ti:Sapphire, Alexandrite, Nd-doped lasers.

• Catalog Number: ACMA00027377
• Product Name: Type1 SHG@532nm KDP Crystals, 5mm Length
• Molecular Formula: KH2PO4
• Width: 12 mm
• Height: 12 mm
• Length: 5 mm
• DimensionTolerance: W±0.1mm/H±0.1mm/L±0.2mm
• Theta(Θ): 76.5°
• Phi(Φ): 45°
• Coating: AR/AR@532/266 nm
• Flatness: λ/6 @ 633 nm
• Parallelism: < 20 arcsec
• Perpendicularity: < 5 arcmin
• Angle Tolerance: < 30 arcmin
• ApertureTolerance: ± 0.1 mm
• Surface Quality: 20/10 scratch & dig
• ClearAperture: 90% of full aperture
• Crystal Structure: Tetragonal, 42m
• Lattice Parameters: a= 7.448 Å, c= 6.977 Å
• Optical Symmetry: Negative uniaxial (no > ne)
• Density: 2.332 g/cm³
• Transparency Region: 180 nm~1.5 μm
• Refractive Indices: no = 1.4938, ne = 1.4599 @1.06 µm
• NLO Coefficients: Type1 dooe=d36xsinθxsin2φ Type2 deoe=d36xsin2θxcos2φ
• Expansion Coefficient: (Thermal expansion coefficient) a11= 2.5×10^-5 K^-1 a33= 4.4×10^-5 K^-1
• Thermal Conductivity: k11= 1.9×10^-2 W/cm×K
• Sellmeier Equations: no²=2.259276+13.00522 λ²/(λ²-400)+0.01008956/(λ²-(77.26408)^-1); ne²=2.132668+3.2279924 λ²/(λ²-400)+0.008637494/(λ²-(81.42631)²)
• Hygroscopicity: high
• Transmission: 0.18~1.5 μm
• Residual Absorption: 0.04 cm^-1 (at 1.06 μm)
• Moh'sHardness: 2.5