YVO₄ Wafer (Yttrium Orthovanadate Substrate)

High-quality single crystal YVO₄ substrate for optical and photonic applications

 

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Description

🔷 Product Description

YVO₄ wafer is a single crystal yttrium orthovanadate substrate widely used in optical and laser applications due to its high birefringence and excellent optical transmission.

It is commonly applied in optical isolators, beam displacers, and polarization optics. LATECH provides high-quality YVO₄ substrates with precise orientation control and superior surface quality for research and industrial use.

 

🔷 Key Features

  • High birefringence
  • Wide optical transmission range
  • Good mechanical stability
  • Suitable for polarization optics

 

🔷 Specifications

Product:

Single crystal YVO4 wafer

Purity:

> 99.99%

Material property:

Crystal structure:             Tetragonal

Lattice constant:              a = 7.12 Å, c = 6.29 Å

Density:                             4.22 g/cm3

Melting point:                  1825 °C

Mohs Hardness:               5

Thermal Expansion Coefficient:  4.43 × 10⁻⁶ /a; 11.37 × 10⁻⁶ /c

Transmission Range:      0.4 – 5 µm

Thermal Conductivity:   A-axis = 5.32 W/(m·K); C-axis = 5.10 W/(m·K)

Thermo-Optic Coefficient: dnₐ/dT = 8.5 × 10⁻⁶ /K; dnc/dT = 3.0 × 10⁻⁶ /K

Refractive Indices (at birefringence 45° angle ρ):

            – No = 1.9929, ne = 2.2154, Δn = 0.2225, ρ = 6.04° at 0.63 µm

            – No = 1.9500, ne = 2.1554, Δn = 0.2054, ρ = 5.72° at 1.30 µm

            – No = 1.9447, ne = 2.1486, Δn = 0.2039, ρ = 5.69° at 1.55 µm

Growth method:               CZ

Dimension:

• 5 × 5 mm

• 5 × 10 mm

• 10 × 10 mm

• 20 × 20 mm

• φ1″ x 0.5mm
• φ2″ x 0.5mm
• Other sizes customizable

Thickness:

• 0.1 mm

• 0.5 mm

• 1.0 mm

• 2.0 mm

• Other sizes customizable

Orientation:

• <100> ± 0.5°

• <001> ± 0.5°

• <110> ± 0.5°

• other off-angle

Polishing:

• Fine ground

• Single side epi-polished

• double side epi-polished

Surface roughness:

< 0.5 nm

 

🔷 Applications

  • Optical isolators
  • Beam displacers
  • Polarization components
  • Laser systems
  • Photonic devices

 

🔷 Customization

We support customization based on your requirements:

  • Size and thickness
  • Crystal orientation
  • Surface polishing
  • Optical grade