Key Features:
- Wide absorption band (0.8 to 1.2 µm)
- High damage threshold (>500 MW/cm²)
- High extinction ratio
- Temperature stability
- Long operational lifespan
Description:
Cr4+(Chromium Doped Yttrium Aluminum Garnet) is an excellent passive Q-switch material for Nd, Nd, Nd₄, and other lasers operating in the 0.8 to 1.2 µm wavelength range. Cr4+crystals enable efficient passive Q-switching, which allows for the generation of short, high-intensity laser pulses without the need for an external electrical signal. This property eliminates the need for high-voltage power supplies, making Cr4+crystals an ideal choice for compact and reliable Q-switch applications.
The broad absorption band of Cr4+makes it versatile for various laser types, providing consistent performance and stability. Cr4+is widely recognized for its high damage threshold, ensuring durability and long-term reliability in high-power laser systems. It is one of the most commonly used passive Q-switch materials in the industry.
Physical Properties:
- Chemical Formula: Cr4+₃Al₅O₁₂
- Crystal Structure: Cubic
- Density: 4.56 g/cm³
- Hardness: Mohs 8.5
- Melting Point: 1970°C
Optical Properties:
- Absorption Wavelength Range: 0.8 to 1.2 µm
- Emission Wavelength: 950-1100 nm
- Refractive Index: 1.82 at 1064 nm
- Birefringence: None (isotropic)
Standard Specifications:
- Available Sizes: 3×3×20 mm² to 20×20×20 mm²
- Aperture: Customizable
- Surface Quality: 10-5 scratch-dig
- Flatness: <λ/10 @ 632 nm
- Parallelism: ≤ 20 arc seconds
- Perpendicularity: ≤ 15 arc minutes
- Chamfer: <0.25 mm @ 45°
- Coating: AR/AR @ 1064 nm (R < 0.2%)
Other Properties:
- High damage threshold: >500 MW/cm² (10 ns pulse width at 1064 nm)
- High extinction ratio: Ensures efficient Q-switching and pulse generation
Applications:
- Passive Q-switch for Nd, Nd, Nd₄, and other lasers
- High-power laser systems
- Medical lasers
- Industrial lasers
- Military and aerospace laser applications
Processing and Handling:
- Cr4+crystals should be handled with care to avoid contamination and surface damage.
- Store crystals in a clean, dry environment to maintain optimal performance.
- Use appropriate mounting techniques to ensure stable and reliable operation.
Why Choose Shape Optics:
- Precision crystal growth and fabrication
- Advanced coating capabilities
- Customizable sizes and specifications to meet diverse application needs
- Rigorous quality control ensuring high performance and reliability
Shape Optics Strength and Capabilities:
Shape Optics is dedicated to providing high-quality optical components tailored to the specific needs of our customers. Our expertise in crystal growth, coating technologies, and rigorous quality control processes ensure that our Cr4+crystals deliver exceptional performance and reliability. Partner with Shape Optics for innovative solutions and unparalleled support in your optical applications.
