Neodymium-doped Gadolinium Orthovanadate (Nd:GdVO4) Description
Neodymium-doped Gadolinium Orthovanadate (Nd:GdVO4) is a crystalline material used in the field of lasers and optics. It is a solid-state laser material that exhibits a high gain, high laser damage threshold, and a wide temperature range.
Nd:GdVO4 is a single crystal made by doping Gadolinium Orthovanadate (GdVO4) with neodymium ions (Nd3+). The neodymium ions replace some of the gadolinium ions in the crystal lattice structure, creating a neodymium-doped version. This doping process allows the crystal to possess specific optical and laser properties.
Nd:GdVO4 crystals are typically used as a laser gain medium, which means they amplify light signals by stimulated emission. When the crystal is excited with a pump source, such as a diode laser, neodymium ions absorb the energy and become excited. This excitation leads to the emission of laser light when the neodymium ions return to their ground state.
The crystal's properties, such as its high gain and low threshold, make it suitable for a wide range of laser applications, including medical lasers, industrial lasers, laser pointers, and scientific research. Nd:GdVO4 lasers can emit laser light in the near-infrared range, typically around 1064nm or 1342nm, depending on the doping concentration and the laser's design.
Neodymium-doped Gadolinium Orthovanadate (Nd:GdVO4) Specifications
Dopant Concentration
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Nd: 1.0 atm% , 0.5%
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Wavefront Distortion
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< λ/8 at 633 nm
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Scattering Sites
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Invisible, probed with a He-Ne laser
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Orientation
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+/-0.5 deg.
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Dimensional Tolerance
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+0.1/-0.1
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Surface Quality
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10/5 Scratch/Dig per MIL-O-13830B
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Flatness
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λ/10 at 633 nm
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Clear Aperture
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> Central 90%
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Parallelism
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< 10 arc sec.
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Coating
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AR or HR coating
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Notes:
1. To inquire or order a finished crystal, please provide specifications as listed above. For most applications, we only need to know the following:
1) Nd-dopant concentration; 2) Sizes; 3) Surface quality; 4) Coating.
2. For special requests, please provide a detailed specification for evaluation and fabrication.
Neodymium-doped Gadolinium Orthovanadate (Nd:GdVO4) Application
1. Lasers: Nd:GdVO4 crystals are widely used as gain mediums in solid-state lasers. They can produce high-power, efficient, and compact lasers in the near-infrared wavelength range. These lasers find applications in material processing, telecommunications, medical devices, and scientific research.
2. Optical Amplifiers: Nd:GdVO4 crystals can be used as optical amplifiers in fiber optic communication systems. They provide gain to weak optical signals, enhancing the transmission distance and allowing for efficient long-haul communication.
3. Beam Steering: The combination of strong birefringence and thermal lensing properties in Nd:GdVO4 crystals allow for precise beam steering. This property is used in laser beam scanning systems, laser defense systems, and various optical applications requiring controlled beam direction.
4. Spectroscopy: Nd:GdVO4 crystals can be used in various spectroscopic applications, including Raman spectroscopy and fluorescence spectroscopy. They offer excellent spectral properties and high-energy transitions, making them useful in analyzing the composition and characteristics of various materials.
Neodymium-doped Gadolinium Orthovanadate (Nd:GdVO4) Package
Neodymium-doped Gadolinium Orthovanadate (Nd:GdVO4) are securely packaged in moisture-resistant, anti-static, and shock-absorbing materials. Custom packaging options, such as cleanroom packaging, are also available for sensitive applications.
Neodymium-doped Gadolinium Orthovanadate (Nd:GdVO4) FAQs
Q1 What are the advantages of Nd:GdVO4 compared to Nd:YVO4 or Nd:YAG?
- Higher Gain: Nd:GdVO4 has a higher stimulated emission cross-section than Nd:YVO4 and Nd:YAG, leading to higher efficiency.
- Broad Absorption Bandwidth: Allows for stable diode-pumping at various wavelengths.
- Excellent Thermal Conductivity: Better than Nd:YVO4, making it more suitable for high-power applications.
- Superior Beam Quality: Produces high-intensity and well-focused laser beams.
Q2 What are the common lasing wavelengths of Nd:GdVO4?
Nd:GdVO4 typically operates at:
- 1063 nm: Standard for industrial and medical lasers
- 1342 nm: Used in specific optical and scientific applications
- 532 nm (via frequency doubling): Common for green lasers in display and precision work
Q3 Are Nd:GdVO4 crystals suitable for Q-switched lasers?
Yes, Nd:GdVO4 crystals are ideal for Q-switched lasers due to their high gain and excellent beam quality, producing high peak powers and short pulse durations.