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Nd:Cr:YAG Crystal

POC-OC-122462-Nd:Cr:YAG Crystal

  • Optimized for high energy efficiency and thermal stability.
  • Enhanced optical uniformity and UV radiation resistance.
  • Continuous, pulsed, Q-switched, and frequency-doubled laser operation capabilities.
  • Excellent for solar-pumped and space-based laser systems.
  • High power output and superior beam quality.

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

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General Description

Nd:Cr:YAG (Neodymium, Chromium-doped Yttrium Aluminum Garnet) crystal is a well-established laser material that combines the advantages of both neodymium and chromium ions. Chromium ions enhance the absorption efficiency of pump light, particularly in solar-pumped systems, while neodymium ions are responsible for efficient lasing. This crystal offers exceptional thermal and optical properties, including high thermal conductivity and resistance to ultraviolet-induced damage. Nd:Cr:YAG Crystal is suitable for continuous, pulsed, and Q-switched laser operations with high power output and stability.

The inclusion of Cr³⁺ ions mitigates fluorescence quenching, ensuring efficient energy transfer and minimal power loss. Nd:Cr:YAG is particularly favored for its robustness in harsh environmental conditions, making it ideal for aerospace and solar-pumped applications. With a working wavelength of 1064 nm and excellent optical uniformity, it is widely used in various high-precision laser systems.

General Application Examples

  • Solar-Pumped Laser Systems: Ideal for converting sunlight into laser energy, Nd:Cr:YAG Crystal  is widely used in high-power solar-pumped lasers for space and terrestrial applications.
  • Space Laser Systems: The crystal’s stability in extreme conditions and efficient energy conversion make it suitable for spaceborne laser technologies.
  • Defense and Security: Its ability to operate in Q-switched and continuous modes makes it invaluable for target ranging, missile guidance, and laser weapon systems.
  • Industrial Lasers: Commonly used in high-power cutting, welding, and marking due to its excellent thermal and mechanical properties.
  • Scientific Research: Nd:Cr:YAG Crystal  is frequently used in experiments requiring high-energy laser pulses and stable output for spectroscopy and material analysis.

Chemical and Structural Properties

PropertyValue
Chemical FormulaNd³⁺:Cr³⁺:Y₃Al₅O₁₂
Melting Point1970°C
Mohs Hardness8-8.5
Thermal Conductivity10-14 W/m·K
Density4.56 g/cm³
Working Wavelength1064 nm

Optical, Laser and Nonlinear Optical Properties

PropertyValue
Pump SourceSolar radiation, Arc Lamp, LD
Laser Emission Wavelength1064 nm
Mode of OperationContinuous, Pulsed, Q-switched
Beam QualityExcellent
Energy EfficiencyHigh

Standard Fabrication Specifications

SpecificationValue
Length Tolerance±0.1 mm
Parallelism<20 arcseconds
Perpendicularity<10 arcminutes
Surface Quality10-5 Scratch/Dig
Flatness<λ/10 @ 632.8 nm
Chamfer<0.1 mm @ 45°

Spectrum Transmission Curve

Please contact for spectral data; specific absorption and emission curves will be provided upon request.

Coating Specification

  • Standard Coating: AR coating optimized for 1064 nm wavelength.
  • Customized Coating: Available upon request for specific applications.
  • 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.
Dimensions (mm)LengthCoatingDopingPrice (USD)
3 x 35AR @ 1064 nmNd³⁺ 1.0%400
3 x 310AR @ 1064 nm + CustomNd³⁺ 1.5%450
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POC-OC-122462-Nd,Cr YAG Crystal

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