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Nd:GdVO4 Crystal

POC-OC-122427-Nd:GdVO4 Crystal

  1. High Stimulated Emission Cross-Section: Offers excellent lasing performance with a value of 7.6 × 10⁻¹⁹ cm² at 1064 nm.
  2. Efficient Energy Absorption: Higher absorption coefficient and broader bandwidth at the pump wavelength (~808 nm) compared to Nd:YVO4.
  3. Superior Thermal Properties: Provides better thermal conductivity and higher power output capabilities than Nd:YVO4 crystals.
  4. Low Lasing Threshold: Enables high slope efficiency for diode-pumped laser systems.
  5. Linearly Polarized Emission: Maintains polarization parallel to the optical axis, minimizing energy loss during lasing.

Customizable Components Available for This Material to Meet Your Specific Needs!

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Material General Description of Nd:GdVO4 Crystal 

Neodymium Doped Gadolinium Orthovanadate (Nd:GdVO4) is a high-performance laser host crystal optimized for diode-pumped solid-state lasers (DPSSLs). Its excellent physical and optical properties make it a preferred material for high-power applications. Nd:GdVO4 offers a larger stimulated emission cross-section and higher energy absorption efficiency than Nd:YVO4, with better thermal management capabilities.

This crystal is particularly suitable for applications requiring high power density and efficient energy conversion. Its superior thermal conductivity supports continuous-wave and pulsed laser operations, enabling compact laser designs with high output stability. The uniaxial birefringence of Nd:GdVO4 ensures linearly polarized emission, making it highly effective for frequency doubling and nonlinear processes.

Nd:GdVO4 crystals are widely used in industries such as material processing, medical instrumentation, spectroscopy, and scientific research.

 

General Applications and Examples of Nd:GdVO4 Crystal 

Nd:GdVO4 crystals are versatile and widely used in high-performance laser systems. Some key examples include:

  1. Industrial Applications
  • Laser Cutting and Welding: High-power Nd:GdVO4 lasers enable precision machining of metals and non-metals.
  • Example: Nd:GdVO4 Crystal  Used in micro-machining and electronics manufacturing for intricate designs.
  1. Medical Applications
  • Laser Surgery and Diagnostics: Nd:GdVO4 Crystal  lasers operating at 1064 nm are ideal for soft tissue surgeries and non-invasive diagnostics.
  • Example: Compact laser systems are used in ophthalmic surgeries and dermatological treatments.
  1. Spectroscopy and Sensing
  • Material and Gas Analysis: Nd:GdVO4 Crystal  lasers are used in Raman spectroscopy and gas sensing for material characterization.
  • Example: Effective in detecting trace gases for environmental monitoring.
  1. Display Technology
  • Laser Projection Systems: Nd:GdVO4 lasers offer stable and vivid output for laser displays and projection systems.
  • Example: Commonly used in advanced imaging technologies for stage lighting and entertainment.
  1. Research and Development
  • Quantum Optics: NNd:GdVO4 Crystal  lasers serve as reliable sources for research in quantum mechanics and photon manipulation.
  • Example: Used in experiments requiring single-mode, stable, and high-power laser output.

Chemical and Structural Properties

Property

Value

Crystal Structure

Zircon Tetragonal, Space Group D4h

Lattice Constants

a = b = 7.21 Å, c = 6.35 Å

Density

5.47 g/cm³

Thermal Conductivity

11.7 W/m·K (parallel to <110>)

Thermal Expansion

a = 1.5 × 10⁻⁶ /K; c = 7.3 × 10⁻⁶ /K

Melting Point

1780 °C

Refractive Index (1064 nm)

nₒ = 1.972, nₑ = 2.192

Optical, Laser and Nonlinear Optical Properties

Property

Value

Lasing Wavelengths

1062.9 nm, 1341.3 nm

Stimulated Emission Cross-Section

7.6 × 10⁻¹⁹ cm² at 1064 nm

Absorption Cross-Section (808 nm)

4.9 × 10⁻¹⁹ cm²

Fluorescence Lifetime

~95 µs (1.2% Nd doping)

Absorption Coefficient

74 cm⁻¹ at 808 nm

Intrinsic Loss

<0.1% at 1064 nm

Gain Bandwidth

0.6 nm

Polarized Laser Emission

Parallel to optical c-axis

Diode Pumped Efficiency

>60%

Standard Fabrication Specifications

Specification

Value

Dimension Tolerance

±0.1 mm (standard); ±0.01 mm (high precision)

Clear Aperture

Central 90% of the diameter

Surface Quality

20-10 Scratch-Dig

Surface Flatness

λ/8 at 633 nm

Parallelism

<20 arc seconds

Perpendicularity

<5 arc minutes

Chamfer

0.1 mm at 45°

Damage Threshold

>15 J/cm² (10 ns, 10 Hz at 1064 nm)

Spectrum Transmission Curve:

Nd:GdVO4 crystals exhibit high transparency in the visible and infrared ranges, with strong absorption at 808 nm and peak lasing performance at 1064 nm. Their high absorption coefficient enables efficient diode pumping.

(Graphical transmission curves can be provided upon request.)

Coating Specification:

 

Coating Type

Specifications

AR Coating

R < 0.2% at 808 nm; R < 0.1% at 1064 nm

Custom Coatings

Available upon request

  • Adhesion Test Compliant with MIL-C-675C military standards, an adhesion test involved applying a tape that meets LT-90 specifications onto the lens film layer. The tape was affixed fully and then removed vertically. This procedure was performed three times, resulting in no blistering or peeling.
  • Temperature Test In line with MIL-C-675C specifications, test pieces were subjected to temperatures of -62±1℃ and 71±1℃. After maintaining them at room temperature (16℃~32℃) for two hours, the adhesion test was repeated, confirming no film detachment.
  • Abrasion Resistance Test Conforming to MIL-C-675C and CCC-C-440 standards, the abrasion resistance test involved a gauze tester applying a minimum force of 1.0 lbs (0.45 kg) to the film. This was repeated 25 times with gauze widths of 1/4 inch (6.4mm) and 3/8 inch (9.5mm), ensuring no damage occurred to the film surface.
  • Humidity Test Under MIL-C-675C criteria, the test piece was placed in a controlled temperature and humidity chamber set to 49 ±2℃ and 95%~100% humidity for 24 hours. The film remained intact, with no peeling, scratches, or other defects.
  • Solvent and Cleaning Testing Following MIL-C-675C specifications, test pieces were exposed to room temperature conditions (16℃~32℃) and tested with acetone and alcohol for at least 10 minutes each. After air drying and subsequent cleaning with a cotton cloth soaked in alcohol, the film surface showed no signs of peeling or scratches.
  • Salt Spray Test After 100 hours in a 35°C environment with a 5% saltwater concentration, the film showed no signs of damage.

 

POC Strength and Capabilities

 

Photonics On Crystals (POC) is a global leader in manufacturing high-quality Nd:GdVO4 crystals. Our strengths include:

  • Customization: Tailored dimensions, doping levels, and coatings for specific applications.
  • Advanced Technology: Precision machining and state-of-the-art coating techniques.
  • Global Support: Comprehensive assistance for R&D and industrial applications.

Standard Products

Product Code

Dimensions (mm)

Doping Level (Nd)

Coating

Price (USD)

NDGDVO4-01

3 × 3 × 0.5

1.0%

AR @ 808 nm / 1064 nm

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NDGDVO4-02

6 × 6 × 1

1.0%

Customizable

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NDGDVO4-03

10 × 10 × 2

0.5%

Customizable

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Custom-NDGDVO4

Customizable

Customizable

Customizable

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POC-OC-122427-Nd GdVO4 Crystal

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